diff --git a/arm9/arm9.lsf b/arm9/arm9.lsf
index 7f0a54c82..c24b46a34 100644
--- a/arm9/arm9.lsf
+++ b/arm9/arm9.lsf
@@ -904,8 +904,8 @@ Overlay OVERLAY_24
 {
     ##Memo Pad##
     After OVERLAY_20
-    Object overlay_24_sinit.o
-    Object overlay_24.o
+    Object ov24_02254840.o
+    Object ov24_02254CA0.o
 }
 
 Overlay OVERLAY_25
diff --git a/arm9/global.inc b/arm9/global.inc
index 84a5336b2..e4e9d1d2e 100644
--- a/arm9/global.inc
+++ b/arm9/global.inc
@@ -7960,9 +7960,9 @@
 .extern ov20_022529A0
 .extern ov20_022529B4
 .extern ov20_02252B1C
-.extern ov20_02252B28
+.extern Poketch_PlaySoundEffect
 .extern ov20_02252B48
-.extern ov20_02252B68
+.extern TouchScreen_GetTapState
 .extern ov20_02252BB8
 .extern ov20_02252C08
 .extern ov20_02252C14
@@ -8030,6 +8030,20 @@
 .extern ov21_02254B10
 .extern ov21_02254B34
 .extern ov21_02254B40
+.extern ov24_02254854
+.extern ov24_022548F4
+.extern ov24_02254998
+.extern ov24_022549AC
+.extern ov24_022549F8
+.extern ov24_02254C64
+.extern ov24_02254D00
+.extern ov24_02254DC8
+.extern ov24_02254DDC
+.extern ov24_02254EE0
+.extern ov24_02254F28
+.extern ov24_02254F40
+.extern ov24_02255038
+.extern ov24_02255050
 .extern ov26_02254BD4
 .extern ov26_02254C04
 .extern ov26_02254C10
diff --git a/arm9/overlays/19/src/overlay_19.c b/arm9/overlays/19/src/overlay_19.c
index eeafb68d6..2f3d48fa2 100644
--- a/arm9/overlays/19/src/overlay_19.c
+++ b/arm9/overlays/19/src/overlay_19.c
@@ -28,9 +28,9 @@ void ov19_02252440(struct BgConfig * bgConfig)
     GX_SetBankForSubOBJ(0x100);
     GXS_SetOBJVRamModeChar(GX_OBJVRAMMODE_CHAR_1D_32K);
     InitBgFromTemplate(bgConfig, GF_BG_LYR_SUB_0, &ov19_02252508, GF_BG_TYPE_TEXT);
-    GfGfxLoader_LoadCharData(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0010_NCGR_lz, bgConfig, GF_BG_LYR_SUB_0, 0, 0, TRUE, HEAP_ID_8);
-    GfGfxLoader_LoadScrnData(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0011_NSCR_lz, bgConfig, GF_BG_LYR_SUB_0, 0, 0, TRUE, HEAP_ID_8);
-    GfGfxLoader_GXLoadPal(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0012_NCLR, GF_PAL_LOCATION_SUB_BG, GF_PAL_SLOT_0_OFFSET, 0x20, HEAP_ID_8);
+    GfGfxLoader_LoadCharData(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0010_NCGR_lz, bgConfig, GF_BG_LYR_SUB_0, 0, 0, TRUE, HEAP_ID_POKETCH_APP);
+    GfGfxLoader_LoadScrnData(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0011_NSCR_lz, bgConfig, GF_BG_LYR_SUB_0, 0, 0, TRUE, HEAP_ID_POKETCH_APP);
+    GfGfxLoader_GXLoadPal(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0012_NCLR, GF_PAL_LOCATION_SUB_BG, GF_PAL_SLOT_0_OFFSET, 0x20, HEAP_ID_POKETCH_APP);
     GXS_SetVisibleWnd(GX_WNDMASK_NONE);
     GXS_SetVisiblePlane(GX_PLANEMASK_BG0);
 }
@@ -38,7 +38,7 @@ void ov19_02252440(struct BgConfig * bgConfig)
 void ov19_022524F4(struct BgConfig * bgConfig)
 {
     FreeBgTilemapBuffer(bgConfig, GF_BG_LYR_SUB_0);
-    DestroyHeap(HEAP_ID_8);
+    DestroyHeap(HEAP_ID_POKETCH_APP);
 }
 
 BOOL ov19_02252504(struct BgConfig * bgConfig)
diff --git a/arm9/overlays/20/asm/ov20_02252440.s b/arm9/overlays/20/asm/ov20_02252440.s
index d584f9826..4a1905fa5 100644
--- a/arm9/overlays/20/asm/ov20_02252440.s
+++ b/arm9/overlays/20/asm/ov20_02252440.s
@@ -1004,8 +1004,8 @@ ov20_02252B1C: ; 0x02252B1C
 	.align 2, 0
 	thumb_func_end ov20_02252B1C
 
-	thumb_func_start ov20_02252B28
-ov20_02252B28: ; 0x02252B28
+	thumb_func_start Poketch_PlaySoundEffect
+Poketch_PlaySoundEffect: ; 0x02252B28
 	push {r4, lr}
 	add r4, r0, #0
 	bl ov20_02252440
@@ -1020,7 +1020,7 @@ ov20_02252B28: ; 0x02252B28
 	bl PlaySE
 _02252B46:
 	pop {r4, pc}
-	thumb_func_end ov20_02252B28
+	thumb_func_end Poketch_PlaySoundEffect
 
 	thumb_func_start ov20_02252B48
 ov20_02252B48: ; 0x02252B48
@@ -1040,8 +1040,8 @@ _02252B66:
 	pop {r4, pc}
 	thumb_func_end ov20_02252B48
 
-	thumb_func_start ov20_02252B68
-ov20_02252B68: ; 0x02252B68
+	thumb_func_start TouchScreen_GetTapState
+TouchScreen_GetTapState: ; 0x02252B68
 	push {r3, r4, r5, lr}
 	add r5, r0, #0
 	add r4, r1, #0
@@ -1085,7 +1085,7 @@ _02252BB0:
 _02252BB4:
 	mov r0, #0
 	pop {r3, r4, r5, pc}
-	thumb_func_end ov20_02252B68
+	thumb_func_end TouchScreen_GetTapState
 
 	thumb_func_start ov20_02252BB8
 ov20_02252BB8: ; 0x02252BB8
diff --git a/arm9/overlays/21/src/ov21_02254854.c b/arm9/overlays/21/src/ov21_02254854.c
index 30f7cc3b5..37d8d26c8 100644
--- a/arm9/overlays/21/src/ov21_02254854.c
+++ b/arm9/overlays/21/src/ov21_02254854.c
@@ -26,7 +26,7 @@ static void ov21_02254840(void)
 
 BOOL ov21_02254854(UnkStruct02254854 **param0, u32 param1, u32 param2, u32 param3)
 {
-    UnkStruct02254854 *alloced = (UnkStruct02254854 *)AllocFromHeap(HEAP_ID_8, sizeof(UnkStruct02254854));
+    UnkStruct02254854 *alloced = (UnkStruct02254854 *)AllocFromHeap(HEAP_ID_POKETCH_APP, sizeof(UnkStruct02254854));
     if (alloced != NULL)
     {
         if (ov21_0225489C(alloced, param1, param2, param3) && SysTask_CreateOnMainQueue((SysTaskFunc)ov21_02254930, (void *)alloced, 1))
diff --git a/arm9/overlays/21/src/ov21_02254A6C.c b/arm9/overlays/21/src/ov21_02254A6C.c
index be68521cc..0de0f5715 100644
--- a/arm9/overlays/21/src/ov21_02254A6C.c
+++ b/arm9/overlays/21/src/ov21_02254A6C.c
@@ -40,7 +40,7 @@ extern void ov11_02252DB4(u32 param0, u32 param1);
 
 BOOL ov21_02254A6C(UnkStruct02254A6C *param0, void *param1)
 {
-    UnkStruct02254A6C *strct = (UnkStruct02254A6C *)AllocFromHeap(HEAP_ID_8, 3 << 8);
+    UnkStruct02254A6C *strct = (UnkStruct02254A6C *)AllocFromHeap(HEAP_ID_POKETCH_APP, 3 << 8);
     u32 sp4;
     if (strct != NULL)
     {
diff --git a/arm9/overlays/22/asm/overlay_22.s b/arm9/overlays/22/asm/overlay_22.s
index 457edf4df..aa16e762a 100644
--- a/arm9/overlays/22/asm/overlay_22.s
+++ b/arm9/overlays/22/asm/overlay_22.s
@@ -1386,7 +1386,7 @@ ov22_02255268: ; 0x02255268
 	mov r1, #6
 	bl BgCommitTilemapBufferToVram
 	ldr r0, _022552A8 ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov22_02255084
 	pop {r3, r4, r5, pc}
@@ -1482,7 +1482,7 @@ _02255358:
 	cmp r0, #0
 	beq _0225537A
 	ldr r0, _0225537C ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldrb r1, [r5, #3]
 	ldr r0, [r4, #4]
 	bl ov22_02255544
@@ -1543,7 +1543,7 @@ _022553D8:
 	cmp r0, #0
 	beq _022553FA
 	ldr r0, _022553FC ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldrb r1, [r5, #3]
 	ldr r0, [r4, #4]
 	bl ov22_02255544
@@ -1599,7 +1599,7 @@ _0225543A:
 	mov r1, #6
 	bl BgCommitTilemapBufferToVram
 	ldr r0, _02255498 ; =0x00000666
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r6, #0
 	bl ov20_022538B0
 _02255468:
diff --git a/arm9/overlays/23/asm/overlay_23.s b/arm9/overlays/23/asm/overlay_23.s
index c88dd22d6..93bdf8316 100644
--- a/arm9/overlays/23/asm/overlay_23.s
+++ b/arm9/overlays/23/asm/overlay_23.s
@@ -1293,7 +1293,7 @@ ov23_022551A4: ; 0x022551A4
 	add r4, r0, #0
 	ldrh r5, [r5]
 	ldr r0, _022551F8 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	lsl r3, r5, #2
 	ldr r0, _022551FC ; =ov23_02255FB9
 	ldr r2, _02255200 ; =ov23_02255FFC
diff --git a/arm9/overlays/24/asm/overlay_24.s b/arm9/overlays/24/asm/overlay_24.s
deleted file mode 100644
index 463690f2d..000000000
--- a/arm9/overlays/24/asm/overlay_24.s
+++ /dev/null
@@ -1,1209 +0,0 @@
-	.include "asm/macros.inc"
-	.include "global.inc"
-	.section .text
-	.balign 4, 0
-
-	thumb_func_start ov24_02254854
-ov24_02254854: ; 0x02254854
-	push {r3, r4, r5, r6, r7, lr}
-	add r6, r1, #0
-	mov r1, #0x17
-	add r5, r0, #0
-	mov r0, #8
-	lsl r1, r1, #8
-	add r7, r2, #0
-	str r3, [sp]
-	bl AllocFromHeap
-	add r4, r0, #0
-	beq _02254894
-	ldr r3, [sp]
-	add r1, r6, #0
-	add r2, r7, #0
-	bl ov24_0225489C
-	cmp r0, #0
-	beq _0225488E
-	ldr r0, _02254898 ; =ov24_02254918
-	add r1, r4, #0
-	mov r2, #1
-	bl SysTask_CreateOnMainQueue
-	cmp r0, #0
-	beq _0225488E
-	str r4, [r5]
-	mov r0, #1
-	pop {r3, r4, r5, r6, r7, pc}
-_0225488E:
-	add r0, r4, #0
-	bl FreeToHeap
-_02254894:
-	mov r0, #0
-	pop {r3, r4, r5, r6, r7, pc}
-	.align 2, 0
-_02254898: .word ov24_02254918
-	thumb_func_end ov24_02254854
-
-	thumb_func_start ov24_0225489C
-ov24_0225489C: ; 0x0225489C
-	push {r3, r4, r5, lr}
-	add r5, r0, #0
-	ldr r0, _022548E4 ; =0x000016F0
-	add r4, r1, #0
-	str r3, [r5, r0]
-	mov r1, #1
-	str r1, [r5, #8]
-	add r0, r0, #4
-	add r1, r5, #0
-	add r0, r5, r0
-	add r1, #8
-	bl ov24_02254CA0
-	cmp r0, #0
-	beq _022548E0
-	mov r0, #0
-	strb r0, [r5]
-	strb r0, [r5, #1]
-	strb r0, [r5, #2]
-	strb r0, [r5, #3]
-	mov r0, #8
-	str r0, [sp]
-	ldr r0, _022548E8 ; =0x022550F8
-	ldr r2, _022548EC ; =ov24_02254960
-	mov r1, #2
-	add r3, r5, #0
-	bl ov20_02254130
-	ldr r1, _022548F0 ; =0x000016FC
-	str r0, [r5, r1]
-	sub r0, r1, #4
-	str r4, [r5, r0]
-	mov r0, #1
-	pop {r3, r4, r5, pc}
-_022548E0:
-	mov r0, #0
-	pop {r3, r4, r5, pc}
-	.align 2, 0
-_022548E4: .word 0x000016F0
-_022548E8: .word ov24_022550F8
-_022548EC: .word ov24_02254960
-_022548F0: .word 0x000016FC
-	thumb_func_end ov24_0225489C
-
-	thumb_func_start ov24_022548F4
-ov24_022548F4: ; 0x022548F4
-	push {r4, lr}
-	add r4, r0, #0
-	ldr r0, _02254910 ; =0x000016FC
-	ldr r0, [r4, r0]
-	bl ov20_02254198
-	ldr r0, _02254914 ; =0x000016F4
-	ldr r0, [r4, r0]
-	bl ov24_02254D48
-	add r0, r4, #0
-	bl FreeToHeap
-	pop {r4, pc}
-	.align 2, 0
-_02254910: .word 0x000016FC
-_02254914: .word 0x000016F4
-	thumb_func_end ov24_022548F4
-
-	thumb_func_start ov24_02254918
-ov24_02254918: ; 0x02254918
-	push {r3, r4, r5, lr}
-	add r4, r1, #0
-	add r5, r0, #0
-	ldrb r0, [r4]
-	cmp r0, #3
-	bhs _02254954
-	ldr r1, _02254958 ; =0x000016F8
-	ldr r0, [r4, r1]
-	add r1, r1, #4
-	ldr r1, [r4, r1]
-	bl ov20_02252C14
-	ldrb r1, [r4]
-	add r0, r4, #0
-	lsl r2, r1, #2
-	ldr r1, _0225495C ; =ov24_02255100
-	ldr r1, [r1, r2]
-	blx r1
-	cmp r0, #0
-	beq _02254954
-	add r0, r4, #0
-	bl ov24_022548F4
-	add r0, r5, #0
-	bl sub_0200CAB4
-	ldr r0, _02254958 ; =0x000016F8
-	ldr r0, [r4, r0]
-	bl ov20_022529A0
-_02254954:
-	pop {r3, r4, r5, pc}
-	nop
-_02254958: .word 0x000016F8
-_0225495C: .word ov24_02255100
-	thumb_func_end ov24_02254918
-
-	thumb_func_start ov24_02254960
-ov24_02254960: ; 0x02254960
-	push {r3, lr}
-	cmp r2, #1
-	bne _02254988
-	ldr r1, [r3, #8]
-	cmp r1, #1
-	bne _02254970
-	cmp r0, #0
-	beq _02254978
-_02254970:
-	cmp r1, #0
-	bne _02254988
-	cmp r0, #1
-	bne _02254988
-_02254978:
-	ldr r0, [r3, #8]
-	mov r1, #1
-	eor r0, r1
-	str r0, [r3, #8]
-	ldr r0, _0225498C ; =0x000016F4
-	ldr r0, [r3, r0]
-	bl ov24_02254D8C
-_02254988:
-	pop {r3, pc}
-	nop
-_0225498C: .word 0x000016F4
-	thumb_func_end ov24_02254960
-
-	thumb_func_start ov24_02254990
-ov24_02254990: ; 0x02254990
-	mov r1, #1
-	strb r1, [r0, #2]
-	bx lr
-	.align 2, 0
-	thumb_func_end ov24_02254990
-
-	thumb_func_start ov24_02254998
-ov24_02254998: ; 0x02254998
-	ldrb r2, [r0, #2]
-	cmp r2, #0
-	bne _022549A0
-	b _022549A2
-_022549A0:
-	mov r1, #2
-_022549A2:
-	strb r1, [r0]
-	mov r1, #0
-	strb r1, [r0, #1]
-	bx lr
-	.align 2, 0
-	thumb_func_end ov24_02254998
-
-	thumb_func_start ov24_022549AC
-ov24_022549AC: ; 0x022549AC
-	push {r4, lr}
-	add r4, r0, #0
-	ldrb r0, [r4, #1]
-	cmp r0, #0
-	beq _022549BC
-	cmp r0, #1
-	beq _022549CE
-	b _022549EC
-_022549BC:
-	ldr r0, _022549F0 ; =0x000016F4
-	mov r1, #0
-	ldr r0, [r4, r0]
-	bl ov24_02254D8C
-	ldrb r0, [r4, #1]
-	add r0, r0, #1
-	strb r0, [r4, #1]
-	b _022549EC
-_022549CE:
-	ldr r0, _022549F0 ; =0x000016F4
-	mov r1, #0
-	ldr r0, [r4, r0]
-	bl ov24_02254DB0
-	cmp r0, #0
-	beq _022549EC
-	ldr r0, _022549F4 ; =0x000016F8
-	ldr r0, [r4, r0]
-	bl ov20_0225298C
-	add r0, r4, #0
-	mov r1, #1
-	bl ov24_02254998
-_022549EC:
-	mov r0, #0
-	pop {r4, pc}
-	.align 2, 0
-_022549F0: .word 0x000016F4
-_022549F4: .word 0x000016F8
-	thumb_func_end ov24_022549AC
-
-	thumb_func_start ov24_022549F8
-ov24_022549F8: ; 0x022549F8
-	push {r3, r4, r5, r6, lr}
-	sub sp, #4
-	add r5, r0, #0
-	ldrb r1, [r5, #2]
-	cmp r1, #0
-	beq _02254A0A
-	mov r1, #2
-	bl ov24_02254998
-_02254A0A:
-	ldrb r0, [r5, #1]
-	cmp r0, #0
-	bne _02254A60
-	ldr r0, _02254A68 ; =0x000016F8
-	ldr r0, [r5, r0]
-	bl ov20_02252C08
-	cmp r0, #0
-	bne _02254A60
-	ldrb r0, [r5, #3]
-	cmp r0, #0
-	beq _02254A48
-	add r0, r5, #0
-	ldr r6, [r5, #0xc]
-	ldr r4, [r5, #0x10]
-	bl ov24_02254AD4
-	cmp r0, #0
-	beq _02254A42
-	ldr r0, [r5, #0x10]
-	add r1, r6, #0
-	str r0, [sp]
-	ldr r3, [r5, #0xc]
-	add r0, r5, #0
-	add r2, r4, #0
-	bl ov24_02254B20
-	b _02254A60
-_02254A42:
-	mov r0, #0
-	strb r0, [r5, #3]
-	b _02254A60
-_02254A48:
-	add r0, r5, #0
-	bl ov24_02254A70
-	cmp r0, #0
-	beq _02254A60
-	ldr r0, _02254A6C ; =0x000016F4
-	mov r1, #3
-	ldr r0, [r5, r0]
-	bl ov24_02254D8C
-	mov r0, #1
-	strb r0, [r5, #3]
-_02254A60:
-	mov r0, #0
-	add sp, #4
-	pop {r3, r4, r5, r6, pc}
-	nop
-_02254A68: .word 0x000016F8
-_02254A6C: .word 0x000016F4
-	thumb_func_end ov24_022549F8
-
-	thumb_func_start ov24_02254A70
-ov24_02254A70: ; 0x02254A70
-	push {r4, lr}
-	sub sp, #8
-	add r4, r0, #0
-	add r0, sp, #4
-	add r1, sp, #0
-	bl ov20_02252B68
-	cmp r0, #0
-	beq _02254ACC
-	ldr r1, [sp, #4]
-	ldr r2, [sp]
-	sub r1, #0x10
-	sub r2, #0x10
-	cmp r1, #0x9c
-	bhs _02254A92
-	mov r0, #1
-	b _02254A94
-_02254A92:
-	mov r0, #0
-_02254A94:
-	cmp r2, #0x96
-	bhs _02254A9C
-	mov r3, #1
-	b _02254A9E
-_02254A9C:
-	mov r3, #0
-_02254A9E:
-	tst r0, r3
-	beq _02254ACC
-	lsr r3, r1, #1
-	lsr r0, r2, #1
-	add r2, r4, #0
-	mov r1, #0x4b
-	add r2, #0x14
-	mul r1, r3
-	str r3, [sp, #4]
-	str r0, [sp]
-	add r3, r2, r1
-	ldrb r1, [r3, r0]
-	ldr r2, [r4, #8]
-	cmp r2, r1
-	beq _02254ACC
-	strb r2, [r3, r0]
-	ldr r0, [sp, #4]
-	str r0, [r4, #0xc]
-	ldr r0, [sp]
-	add sp, #8
-	str r0, [r4, #0x10]
-	mov r0, #1
-	pop {r4, pc}
-_02254ACC:
-	mov r0, #0
-	add sp, #8
-	pop {r4, pc}
-	.align 2, 0
-	thumb_func_end ov24_02254A70
-
-	thumb_func_start ov24_02254AD4
-ov24_02254AD4: ; 0x02254AD4
-	push {r4, lr}
-	sub sp, #8
-	add r4, r0, #0
-	add r0, sp, #4
-	add r1, sp, #0
-	bl ov20_02252B68
-	cmp r0, #0
-	beq _02254B1A
-	ldr r1, [sp, #4]
-	ldr r2, [sp]
-	sub r1, #0x10
-	sub r2, #0x10
-	cmp r1, #0x9c
-	bhs _02254AF6
-	mov r0, #1
-	b _02254AF8
-_02254AF6:
-	mov r0, #0
-_02254AF8:
-	cmp r2, #0x96
-	bhs _02254B00
-	mov r3, #1
-	b _02254B02
-_02254B00:
-	mov r3, #0
-_02254B02:
-	tst r0, r3
-	beq _02254B1A
-	lsr r1, r1, #1
-	lsr r0, r2, #1
-	str r1, [sp, #4]
-	str r0, [sp]
-	str r1, [r4, #0xc]
-	ldr r0, [sp]
-	add sp, #8
-	str r0, [r4, #0x10]
-	mov r0, #1
-	pop {r4, pc}
-_02254B1A:
-	mov r0, #0
-	add sp, #8
-	pop {r4, pc}
-	thumb_func_end ov24_02254AD4
-
-	thumb_func_start ov24_02254B20
-ov24_02254B20: ; 0x02254B20
-	push {r4, r5, r6, r7, lr}
-	sub sp, #0x14
-	add r5, r0, #0
-	ldr r0, [sp, #0x28]
-	add r4, r2, #0
-	add r6, r1, #0
-	str r3, [sp]
-	str r0, [sp, #0x28]
-	cmp r4, r0
-	bne _02254B3C
-	add r0, r3, #0
-	cmp r6, r0
-	bne _02254B3C
-	b _02254C5C
-_02254B3C:
-	ldr r0, [sp]
-	cmp r0, r6
-	bls _02254B46
-	sub r1, r0, r6
-	b _02254B48
-_02254B46:
-	sub r1, r6, r0
-_02254B48:
-	ldr r0, [sp, #0x28]
-	cmp r0, r4
-	bls _02254B52
-	sub r2, r0, r4
-	b _02254B54
-_02254B52:
-	sub r2, r4, r0
-_02254B54:
-	cmp r1, r2
-	bls _02254BD6
-	ldr r0, [sp]
-	cmp r0, r6
-	bls _02254B64
-	mov r0, #1
-	str r0, [sp, #4]
-	b _02254B6A
-_02254B64:
-	mov r0, #0
-	mvn r0, r0
-	str r0, [sp, #4]
-_02254B6A:
-	cmp r1, #0
-	beq _02254B7C
-	ldr r0, [sp, #0x28]
-	sub r0, r0, r4
-	lsl r0, r0, #0xc
-	bl _s32_div_f
-	str r0, [sp, #0x10]
-	b _02254B80
-_02254B7C:
-	mov r0, #0
-	str r0, [sp, #0x10]
-_02254B80:
-	ldr r0, [sp, #0x10]
-	lsl r1, r4, #0xc
-	add r7, r1, r0
-	ldr r0, [sp, #4]
-	add r6, r6, r0
-	ldr r0, [sp]
-	cmp r6, r0
-	beq _02254C40
-	mov r1, #0x4b
-	add r0, r6, #0
-	mul r0, r1
-	add r4, r5, r0
-	ldr r0, [sp, #4]
-	mul r1, r0
-	str r1, [sp, #0xc]
-_02254B9E:
-	asr r2, r7, #0xc
-	cmp r6, #0x4e
-	bhs _02254BC2
-	cmp r2, #0x4b
-	bhs _02254BC2
-	add r1, r4, r2
-	ldrb r0, [r1, #0x14]
-	ldr r3, [r5, #8]
-	cmp r3, r0
-	beq _02254BC2
-	strb r3, [r1, #0x14]
-	str r6, [r5, #0xc]
-	ldr r0, _02254C60 ; =0x000016F4
-	str r2, [r5, #0x10]
-	ldr r0, [r5, r0]
-	mov r1, #3
-	bl ov24_02254D8C
-_02254BC2:
-	ldr r0, [sp, #0xc]
-	add r4, r4, r0
-	ldr r0, [sp, #4]
-	add r6, r6, r0
-	ldr r0, [sp, #0x10]
-	add r7, r7, r0
-	ldr r0, [sp]
-	cmp r6, r0
-	bne _02254B9E
-	b _02254C40
-_02254BD6:
-	ldr r0, [sp, #0x28]
-	cmp r0, r4
-	bls _02254BE0
-	mov r7, #1
-	b _02254BE4
-_02254BE0:
-	mov r7, #0
-	mvn r7, r7
-_02254BE4:
-	cmp r2, #0
-	beq _02254BF8
-	ldr r0, [sp]
-	add r1, r2, #0
-	sub r0, r0, r6
-	lsl r0, r0, #0xc
-	bl _s32_div_f
-	str r0, [sp, #8]
-	b _02254BFC
-_02254BF8:
-	mov r0, #0
-	str r0, [sp, #8]
-_02254BFC:
-	ldr r0, [sp, #8]
-	lsl r1, r6, #0xc
-	add r6, r1, r0
-	ldr r0, [sp, #0x28]
-	add r4, r4, r7
-	cmp r4, r0
-	beq _02254C40
-_02254C0A:
-	asr r3, r6, #0xc
-	cmp r4, #0x4b
-	bhs _02254C34
-	cmp r3, #0x4e
-	bhs _02254C34
-	mov r0, #0x4b
-	mul r0, r3
-	add r0, r5, r0
-	add r2, r0, r4
-	ldrb r0, [r2, #0x14]
-	ldr r1, [r5, #8]
-	cmp r1, r0
-	beq _02254C34
-	strb r1, [r2, #0x14]
-	str r3, [r5, #0xc]
-	ldr r0, _02254C60 ; =0x000016F4
-	str r4, [r5, #0x10]
-	ldr r0, [r5, r0]
-	mov r1, #3
-	bl ov24_02254D8C
-_02254C34:
-	ldr r0, [sp, #8]
-	add r4, r4, r7
-	add r6, r6, r0
-	ldr r0, [sp, #0x28]
-	cmp r4, r0
-	bne _02254C0A
-_02254C40:
-	ldr r0, [sp, #0x28]
-	cmp r0, #0x4b
-	bhs _02254C5C
-	ldr r0, [sp]
-	cmp r0, #0x4e
-	bhs _02254C5C
-	str r0, [r5, #0xc]
-	ldr r0, [sp, #0x28]
-	mov r1, #3
-	str r0, [r5, #0x10]
-	ldr r0, _02254C60 ; =0x000016F4
-	ldr r0, [r5, r0]
-	bl ov24_02254D8C
-_02254C5C:
-	add sp, #0x14
-	pop {r4, r5, r6, r7, pc}
-	.align 2, 0
-_02254C60: .word 0x000016F4
-	thumb_func_end ov24_02254B20
-
-	thumb_func_start ov24_02254C64
-ov24_02254C64: ; 0x02254C64
-	push {r4, lr}
-	add r4, r0, #0
-	ldrb r0, [r4, #1]
-	cmp r0, #0
-	beq _02254C74
-	cmp r0, #1
-	beq _02254C86
-	b _02254C96
-_02254C74:
-	ldr r0, _02254C9C ; =0x000016F4
-	mov r1, #5
-	ldr r0, [r4, r0]
-	bl ov24_02254D8C
-	ldrb r0, [r4, #1]
-	add r0, r0, #1
-	strb r0, [r4, #1]
-	b _02254C96
-_02254C86:
-	ldr r0, _02254C9C ; =0x000016F4
-	ldr r0, [r4, r0]
-	bl ov24_02254DBC
-	cmp r0, #0
-	beq _02254C96
-	mov r0, #1
-	pop {r4, pc}
-_02254C96:
-	mov r0, #0
-	pop {r4, pc}
-	nop
-_02254C9C: .word 0x000016F4
-	thumb_func_end ov24_02254C64
-
-	thumb_func_start ov24_02254CA0
-ov24_02254CA0: ; 0x02254CA0
-	push {r4, r5, r6, lr}
-	add r5, r0, #0
-	add r6, r1, #0
-	mov r0, #8
-	mov r1, #0x74
-	bl AllocFromHeap
-	add r4, r0, #0
-	beq _02254CFA
-	mov r0, #7
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254CC0
-	bl GF_AssertFail
-_02254CC0:
-	add r0, r4, #0
-	add r0, #8
-	mov r1, #0x10
-	bl ov20_022536F4
-	mov r0, #7
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254CD8
-	bl GF_AssertFail
-_02254CD8:
-	str r6, [r4]
-	bl ov20_02252D34
-	str r0, [r4, #4]
-	bl ov20_02252D24
-	str r0, [r4, #0x50]
-	mov r0, #7
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254CF4
-	bl GF_AssertFail
-_02254CF4:
-	str r4, [r5]
-	mov r0, #1
-	pop {r4, r5, r6, pc}
-_02254CFA:
-	mov r0, #0
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-	thumb_func_end ov24_02254CA0
-
-	thumb_func_start ov24_02254D00
-ov24_02254D00: ; 0x02254D00
-	push {r4, lr}
-	add r4, r0, #0
-	mov r0, #8
-	mov r1, #1
-	bl AllocWindows
-	str r0, [r4, #0x70]
-	add r1, r0, #0
-	beq _02254D3C
-	ldr r0, [r4, #4]
-	ldr r2, _02254D40 ; =ov24_0225510C
-	bl AddWindow
-	mov r2, #0xbe
-	ldr r1, [r4]
-	ldr r0, _02254D44 ; =0x000016E8
-	lsl r2, r2, #6
-	ldr r0, [r1, r0]
-	ldr r1, [r4, #0x70]
-	ldr r1, [r1, #0xc]
-	bl sub_0208946C
-	cmp r0, #0
-	bne _02254D38
-	ldr r0, [r4, #0x70]
-	mov r1, #4
-	bl FillWindowPixelBuffer
-_02254D38:
-	mov r0, #1
-	pop {r4, pc}
-_02254D3C:
-	mov r0, #0
-	pop {r4, pc}
-	.align 2, 0
-_02254D40: .word ov24_0225510C
-_02254D44: .word 0x000016E8
-	thumb_func_end ov24_02254D00
-
-	thumb_func_start ov24_02254D48
-ov24_02254D48: ; 0x02254D48
-	push {r4, lr}
-	add r4, r0, #0
-	beq _02254D84
-	mov r0, #7
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254D5C
-	bl GF_AssertFail
-_02254D5C:
-	ldr r2, [r4, #0x70]
-	cmp r2, #0
-	beq _02254D7E
-	ldr r1, [r4]
-	ldr r0, _02254D88 ; =0x000016E8
-	ldr r0, [r1, r0]
-	ldr r1, [r2, #0xc]
-	mov r2, #0xbe
-	lsl r2, r2, #6
-	bl sub_02089444
-	ldr r0, [r4, #0x70]
-	bl RemoveWindow
-	ldr r0, [r4, #0x70]
-	bl FreeToHeap
-_02254D7E:
-	add r0, r4, #0
-	bl FreeToHeap
-_02254D84:
-	pop {r4, pc}
-	nop
-_02254D88: .word 0x000016E8
-	thumb_func_end ov24_02254D48
-
-	thumb_func_start ov24_02254D8C
-ov24_02254D8C: ; 0x02254D8C
-	push {lr}
-	sub sp, #0xc
-	add r2, r0, #0
-	add r0, #8
-	str r0, [sp]
-	mov r0, #2
-	str r0, [sp, #4]
-	mov r0, #8
-	str r0, [sp, #8]
-	ldr r0, _02254DAC ; =ov24_0225516C
-	ldr r3, [r2]
-	bl ov20_022537E0
-	add sp, #0xc
-	pop {pc}
-	nop
-_02254DAC: .word ov24_0225516C
-	thumb_func_end ov24_02254D8C
-
-	thumb_func_start ov24_02254DB0
-ov24_02254DB0: ; 0x02254DB0
-	ldr r3, _02254DB8 ; =ov20_02253794
-	add r0, #8
-	bx r3
-	nop
-_02254DB8: .word ov20_02253794
-	thumb_func_end ov24_02254DB0
-
-	thumb_func_start ov24_02254DBC
-ov24_02254DBC: ; 0x02254DBC
-	ldr r3, _02254DC4 ; =ov20_022537B8
-	add r0, #8
-	bx r3
-	nop
-_02254DC4: .word ov20_022537B8
-	thumb_func_end ov24_02254DBC
-
-	thumb_func_start ov24_02254DC8
-ov24_02254DC8: ; 0x02254DC8
-	push {r4, lr}
-	add r4, r0, #0
-	bl ov20_022538A0
-	add r0, #8
-	add r1, r4, #0
-	bl ov20_02253888
-	pop {r4, pc}
-	.align 2, 0
-	thumb_func_end ov24_02254DC8
-
-	thumb_func_start ov24_02254DDC
-ov24_02254DDC: ; 0x02254DDC
-	push {r4, r5, lr}
-	sub sp, #0x14
-	mov r0, #8
-	add r4, r1, #0
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254DF0
-	bl GF_AssertFail
-_02254DF0:
-	add r0, r4, #0
-	bl ov20_022538A0
-	add r5, r0, #0
-	ldr r0, [r5, #4]
-	ldr r2, _02254ED0 ; =ov24_02255114
-	mov r1, #6
-	mov r3, #0
-	bl InitBgFromTemplate
-	ldr r0, [r5, #4]
-	ldr r2, _02254ED4 ; =ov24_02255130
-	mov r1, #7
-	mov r3, #0
-	bl InitBgFromTemplate
-	mov r0, #8
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254E1E
-	bl GF_AssertFail
-_02254E1E:
-	mov r0, #0
-	str r0, [sp]
-	str r0, [sp, #4]
-	mov r0, #1
-	str r0, [sp, #8]
-	mov r0, #8
-	str r0, [sp, #0xc]
-	ldr r2, [r5, #4]
-	mov r0, #0xc
-	mov r1, #0x1e
-	mov r3, #6
-	bl GfGfxLoader_LoadCharData
-	mov r0, #0
-	str r0, [sp]
-	str r0, [sp, #4]
-	mov r0, #1
-	str r0, [sp, #8]
-	mov r0, #8
-	str r0, [sp, #0xc]
-	ldr r2, [r5, #4]
-	mov r0, #0xc
-	mov r1, #0x1f
-	mov r3, #6
-	bl GfGfxLoader_LoadScrnData
-	mov r0, #0
-	add r1, r0, #0
-	bl ov20_02252D7C
-	mov r0, #8
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254E68
-	bl GF_AssertFail
-_02254E68:
-	add r0, r5, #0
-	bl ov24_02254D00
-	ldr r0, [r5, #0x70]
-	bl CopyWindowToVram
-	mov r0, #8
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254E82
-	bl GF_AssertFail
-_02254E82:
-	add r0, r5, #0
-	bl ov24_02255078
-	mov r0, #8
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254E96
-	bl GF_AssertFail
-_02254E96:
-	ldr r0, [r5, #4]
-	mov r1, #7
-	bl BgCommitTilemapBufferToVram
-	ldr r1, _02254ED8 ; =0x04001000
-	ldr r0, _02254EDC ; =0xFFFFE0FF
-	ldr r3, [r1]
-	ldr r2, [r1]
-	str r3, [sp, #0x10]
-	and r0, r2
-	lsl r2, r3, #0x13
-	lsr r3, r2, #0x1b
-	mov r2, #0x14
-	orr r2, r3
-	lsl r2, r2, #8
-	orr r0, r2
-	str r0, [r1]
-	add r0, r4, #0
-	bl ov24_02254DC8
-	mov r0, #8
-	bl GF_heap_c_dummy_return_true
-	cmp r0, #0
-	bne _02254ECC
-	bl GF_AssertFail
-_02254ECC:
-	add sp, #0x14
-	pop {r4, r5, pc}
-	.align 2, 0
-_02254ED0: .word ov24_02255114
-_02254ED4: .word ov24_02255130
-_02254ED8: .word 0x04001000
-_02254EDC: .word 0xFFFFE0FF
-	thumb_func_end ov24_02254DDC
-
-	thumb_func_start ov24_02254EE0
-ov24_02254EE0: ; 0x02254EE0
-	push {r3, r4, r5, lr}
-	add r5, r1, #0
-	add r0, r5, #0
-	bl ov20_022538A0
-	add r4, r0, #0
-	ldr r0, [r4]
-	ldr r0, [r0]
-	cmp r0, #1
-	ldr r0, [r4, #0x68]
-	bne _02254F06
-	mov r1, #0
-	bl ov20_02253F28
-	ldr r0, [r4, #0x6c]
-	mov r1, #3
-	bl ov20_02253F28
-	b _02254F14
-_02254F06:
-	mov r1, #1
-	bl ov20_02253F28
-	ldr r0, [r4, #0x6c]
-	mov r1, #2
-	bl ov20_02253F28
-_02254F14:
-	ldr r0, _02254F24 ; =0x00000663
-	bl ov20_02252B28
-	add r0, r5, #0
-	bl ov24_02254DC8
-	pop {r3, r4, r5, pc}
-	nop
-_02254F24: .word 0x00000663
-	thumb_func_end ov24_02254EE0
-
-	thumb_func_start ov24_02254F28
-ov24_02254F28: ; 0x02254F28
-	push {r4, lr}
-	add r4, r1, #0
-	add r0, r4, #0
-	bl ov20_022538A0
-	ldr r0, [r0, #0x70]
-	bl CopyWindowPixelsToVram_TextMode
-	add r0, r4, #0
-	bl ov24_02254DC8
-	pop {r4, pc}
-	thumb_func_end ov24_02254F28
-
-	thumb_func_start ov24_02254F40
-ov24_02254F40: ; 0x02254F40
-	push {r3, r4, r5, r6, r7, lr}
-	sub sp, #0x18
-	add r0, r1, #0
-	str r1, [sp, #8]
-	bl ov20_022538A0
-	add r7, r0, #0
-	ldr r0, [r7]
-	ldr r1, [r0]
-	cmp r1, #0
-	bne _02254FF2
-	mov r1, #8
-	str r1, [sp, #0x10]
-	str r1, [sp, #0x14]
-	ldr r1, [r0, #4]
-	ldr r0, [r0, #8]
-	lsl r1, r1, #1
-	lsl r0, r0, #1
-	sub r6, r1, #4
-	sub r5, r0, #4
-	cmp r6, #0
-	bge _02254F74
-	ldr r0, [sp, #0x10]
-	add r0, r0, r6
-	str r0, [sp, #0x14]
-	mov r6, #0
-_02254F74:
-	cmp r5, #0
-	bge _02254F80
-	ldr r0, [sp, #0x10]
-	add r0, r0, r5
-	str r0, [sp, #0x10]
-	mov r5, #0
-_02254F80:
-	ldr r0, [sp, #0x14]
-	lsl r2, r6, #0x10
-	lsl r0, r0, #0x10
-	lsr r0, r0, #0x10
-	str r0, [sp]
-	ldr r0, [sp, #0x10]
-	lsl r3, r5, #0x10
-	lsl r0, r0, #0x10
-	lsr r0, r0, #0x10
-	str r0, [sp, #4]
-	ldr r0, [r7, #0x70]
-	mov r1, #4
-	lsr r2, r2, #0x10
-	lsr r3, r3, #0x10
-	bl FillWindowPixelRect
-	asr r1, r5, #3
-	mov r2, #0x14
-	asr r0, r6, #3
-	mul r2, r1
-	add r4, r0, r2
-	ldr r2, [sp, #0x14]
-	add r2, r6, r2
-	sub r2, r2, #1
-	asr r2, r2, #3
-	sub r0, r2, r0
-	ldr r2, [sp, #0x10]
-	add r0, r0, #1
-	add r2, r5, r2
-	sub r2, r2, #1
-	asr r2, r2, #3
-	sub r1, r2, r1
-	add r1, r1, #1
-	sub r6, r1, #1
-	cmp r1, #0
-	beq _0225502C
-	lsl r0, r0, #5
-	lsl r5, r4, #5
-	str r0, [sp, #0xc]
-_02254FCE:
-	ldr r0, [r7, #0x70]
-	add r1, r4, #0
-	ldr r0, [r0, #0xc]
-	add r1, #0xc
-	ldr r2, [sp, #0xc]
-	add r0, r0, r5
-	lsl r1, r1, #5
-	bl GXS_LoadBG3Char
-	mov r0, #0xa
-	lsl r0, r0, #6
-	add r5, r5, r0
-	add r0, r6, #0
-	add r4, #0x14
-	sub r6, r6, #1
-	cmp r0, #0
-	bne _02254FCE
-	b _0225502C
-_02254FF2:
-	ldr r1, [r0, #4]
-	ldr r0, [r0, #8]
-	lsl r2, r1, #1
-	lsl r3, r0, #1
-	asr r1, r3, #3
-	mov r0, #0x14
-	asr r4, r2, #3
-	mul r0, r1
-	add r4, r4, r0
-	mov r0, #2
-	str r0, [sp]
-	str r0, [sp, #4]
-	lsl r2, r2, #0x10
-	lsl r3, r3, #0x10
-	ldr r0, [r7, #0x70]
-	mov r1, #1
-	lsr r2, r2, #0x10
-	lsr r3, r3, #0x10
-	bl FillWindowPixelRect
-	ldr r0, [r7, #0x70]
-	mov r2, #0x20
-	ldr r1, [r0, #0xc]
-	lsl r0, r4, #5
-	add r4, #0xc
-	add r0, r1, r0
-	lsl r1, r4, #5
-	bl GXS_LoadBG3Char
-_0225502C:
-	ldr r0, [sp, #8]
-	bl ov24_02254DC8
-	add sp, #0x18
-	pop {r3, r4, r5, r6, r7, pc}
-	.align 2, 0
-	thumb_func_end ov24_02254F40
-
-	thumb_func_start ov24_02255038
-ov24_02255038: ; 0x02255038
-	push {r4, lr}
-	add r4, r1, #0
-	add r0, r4, #0
-	bl ov20_022538A0
-	ldr r0, [r0, #0x70]
-	bl CopyWindowPixelsToVram_TextMode
-	add r0, r4, #0
-	bl ov24_02254DC8
-	pop {r4, pc}
-	thumb_func_end ov24_02255038
-
-	thumb_func_start ov24_02255050
-ov24_02255050: ; 0x02255050
-	push {r3, r4, r5, lr}
-	add r5, r1, #0
-	add r0, r5, #0
-	bl ov20_022538A0
-	add r4, r0, #0
-	bl ov24_022550D4
-	ldr r0, [r4, #4]
-	mov r1, #6
-	bl FreeBgTilemapBuffer
-	ldr r0, [r4, #4]
-	mov r1, #7
-	bl FreeBgTilemapBuffer
-	add r0, r5, #0
-	bl ov24_02254DC8
-	pop {r3, r4, r5, pc}
-	thumb_func_end ov24_02255050
-
-	thumb_func_start ov24_02255078
-ov24_02255078: ; 0x02255078
-	push {r3, r4, r5, r6, r7, lr}
-	sub sp, #0x10
-	mov r3, #0
-	str r3, [sp]
-	mov r2, #1
-	add r7, r0, #0
-	str r2, [sp, #4]
-	mov r0, #8
-	str r0, [sp, #8]
-	mov r0, #0xc
-	mov r1, #0x20
-	bl GfGfxLoader_LoadWholePalette
-	mov r0, #8
-	str r0, [sp]
-	add r0, r7, #0
-	add r0, #0x54
-	mov r1, #0xc
-	mov r2, #0x21
-	mov r3, #0x22
-	bl ov20_02253FBC
-	cmp r0, #0
-	beq _022550CC
-	add r0, r7, #0
-	str r0, [sp, #0xc]
-	add r0, #0x54
-	ldr r4, _022550D0 ; =ov24_0225514C
-	mov r6, #0
-	add r5, r7, #0
-	str r0, [sp, #0xc]
-_022550B6:
-	ldr r0, [r7, #0x50]
-	ldr r2, [sp, #0xc]
-	add r1, r4, #0
-	bl ov20_02253E74
-	str r0, [r5, #0x68]
-	add r6, r6, #1
-	add r4, #0x10
-	add r5, r5, #4
-	cmp r6, #2
-	blt _022550B6
-_022550CC:
-	add sp, #0x10
-	pop {r3, r4, r5, r6, r7, pc}
-	.align 2, 0
-_022550D0: .word ov24_0225514C
-	thumb_func_end ov24_02255078
-
-	thumb_func_start ov24_022550D4
-ov24_022550D4: ; 0x022550D4
-	push {r4, r5, r6, lr}
-	add r6, r0, #0
-	mov r4, #0
-	add r5, r6, #0
-_022550DC:
-	ldr r0, [r6, #0x50]
-	ldr r1, [r5, #0x68]
-	bl ov20_02253F14
-	add r4, r4, #1
-	add r5, r5, #4
-	cmp r4, #2
-	blo _022550DC
-	add r6, #0x54
-	add r0, r6, #0
-	bl ov20_02254014
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-	thumb_func_end ov24_022550D4
-
-	.section .rodata
-	.global ov24_022550F8
-ov24_022550F8: ; 0x022550F8
-	.byte 0x18, 0x58, 0xB4, 0xCC, 0x68, 0xA8, 0xB4, 0xCC
-
-	.global ov24_02255100
-ov24_02255100: ; 0x02255100
-	.word ov24_022549AC, ov24_022549F8, ov24_02254C64
-
-	.global ov24_0225510C
-ov24_0225510C: ; 0x0225510C
-	.byte 0x07, 0x02, 0x02, 0x14, 0x13, 0x00, 0x0C, 0x00
-
-	.global ov24_02255114
-ov24_02255114: ; 0x02255114
-	.byte 0x00, 0x00, 0x00, 0x00
-	.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x00
-	.byte 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-
-	.global ov24_02255130
-ov24_02255130: ; 0x02255130
-	.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	.byte 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0F, 0x00, 0x00, 0x03, 0x00, 0x00
-	.byte 0x00, 0x00, 0x00, 0x00
-
-	.global ov24_0225514C
-ov24_0225514C: ; 0x0225514C
-	.byte 0x00, 0x00, 0x0C, 0x00, 0x00, 0x80, 0x03, 0x00, 0x00, 0x00, 0x00, 0x02
-	.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x80, 0x08, 0x00, 0x03, 0x00, 0x00, 0x02
-	.byte 0x00, 0x00, 0x00, 0x00
-
-	.global ov24_0225516C
-ov24_0225516C: ; 0x0225516C
-	.word 0x00, ov24_02254DDC, 0x00
-	.word 0x01, ov24_02254EE0, 0x00
-	.word 0x02, ov24_02254F28, 0x00
-	.word 0x03, ov24_02254F40, 0x00
-	.word 0x04, ov24_02255038, 0x00
-	.word 0x05, ov24_02255050, 0x00
-	.word 0x00, 0x00000000, 0x00
diff --git a/arm9/overlays/24/include/overlay_24.h b/arm9/overlays/24/include/overlay_24.h
new file mode 100644
index 000000000..355b87bc0
--- /dev/null
+++ b/arm9/overlays/24/include/overlay_24.h
@@ -0,0 +1,78 @@
+#ifndef POKEDIAMOND_OVERLAY_24_H
+#define POKEDIAMOND_OVERLAY_24_H
+
+typedef enum {
+    TOUCH_TYPE_ERASE = 0,
+    TOUCH_TYPE_DRAW = 1,
+} TouchType;
+
+typedef enum {
+    MEMO_PAD_PIXEL_TYPE_FILLED = 1,
+    MEMO_PAD_PIXEL_TYPE_EMPTY = 4,
+} MemoPadPixelType;
+
+typedef struct MemoPadDrawState
+{
+    TouchType touchType;
+    u32 lastModifiedX;
+    u32 lastModifiedY;
+    u8 pixelData[78][75];
+    u16 padding;
+    u32 unk16E8;
+} MemoPadDrawState;
+
+typedef struct MemoPadDisplayHandler
+{
+    MemoPadDrawState *drawState;
+    BgConfig *config;
+    u32 unk8;
+    u8 unkC[0x44];
+    u32 unk50;
+    u8 unk54[0x14];
+    u32 *unk68[2];
+    Window *window;
+} MemoPadDisplayHandler;
+
+typedef struct MemoPadAppHandler
+{
+    u8 unk0;
+    u8 unk1;
+    u8 unk2;
+    u8 touchHeld;
+    u32 unk4;
+    MemoPadDrawState drawState;
+    MemoPadDisplayHandler *displayHandler;
+    u32 unk16F8;
+    u32 unk16FC;
+} MemoPadAppHandler;
+
+BOOL ov24_02254854(MemoPadAppHandler **appHandlerOut, s32 arg1, s32 arg2, s32 arg3);
+BOOL ov24_0225489C(MemoPadAppHandler *appHandler, u32 arg1, u32 arg2, u32 arg3);
+void ov24_022548F4(MemoPadAppHandler *appHandler);
+void ov24_02254918(void *arg0, MemoPadAppHandler *appHandler);
+void ov24_02254960(s32 arg0, s32 arg1, s32 arg2, MemoPadAppHandler *appHandler);
+void ov24_02254990(MemoPadAppHandler *appHandler);
+void ov24_02254998(MemoPadAppHandler *appHandler, u8 arg1);
+BOOL ov24_022549AC(MemoPadAppHandler *appHandler);
+BOOL ov24_022549F8(MemoPadAppHandler *appHandler);
+BOOL ov24_02254A70(MemoPadAppHandler *appHandler);
+BOOL ov24_02254AD4(MemoPadAppHandler *appHandler);
+void ov24_02254B20(MemoPadAppHandler *appHandler, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+BOOL ov24_02254C64(MemoPadAppHandler *appHandler);
+BOOL ov24_02254CA0(MemoPadDisplayHandler **displayHandlerOut, MemoPadDrawState *drawState);
+BOOL ov24_02254D00(MemoPadDisplayHandler *displayHandler);
+void ov24_02254D48(MemoPadDisplayHandler *displayHandler);
+void ov24_02254D8C(MemoPadDisplayHandler *displayHandler, u32 arg1);
+BOOL ov24_02254DB0(MemoPadDisplayHandler *displayHandler, u8 arg1);
+BOOL ov24_02254DBC(MemoPadDisplayHandler *displayHandler);
+void ov24_02254DC8(void *arg0);
+void ov24_02254DDC(void *arg0, void *arg1);
+void ov24_02254EE0(u32 arg0, void *arg1);
+void ov24_02254F28(s32 arg0, void *arg1);
+void ov24_02254F40(u32 arg0, void *arg1);
+void ov24_02255038(u32 arg0, void *arg1);
+void ov24_02255050(u32 arg0, void *arg1);
+void ov24_02255078(MemoPadDisplayHandler *displayHandler);
+void ov24_022550D4(MemoPadDisplayHandler *displayHandler);
+
+#endif //POKEDIAMOND_OVERLAY_24_H
diff --git a/arm9/overlays/24/src/ov24_02254840.c b/arm9/overlays/24/src/ov24_02254840.c
new file mode 100644
index 000000000..f7ed16891
--- /dev/null
+++ b/arm9/overlays/24/src/ov24_02254840.c
@@ -0,0 +1,254 @@
+#include "global.h"
+#include "bg_window.h"
+#include "unk_0200CA44.h"
+#include "gf_gfx_loader.h"
+#include "overlay_24.h"
+
+extern void Poketch_InitApp(void *func1, void *func2);
+extern u32 ov20_02254130(void *arg0, u32 arg1, void *arg2, void *arg3, u32 arg4);
+extern void ov20_02254198(u32 arg0);
+extern void ov20_02252C14(u32 arg0, u32 arg1);
+extern void ov20_022529A0(u32 arg0);
+extern void ov20_0225298C(u32 arg0);
+extern BOOL ov20_02252C08(u32 arg0);
+extern BOOL TouchScreen_GetTapState(u32 *arg0, u32 *arg1);
+
+static void ov24_02254840(void)
+{
+    Poketch_InitApp(ov24_02254854, ov24_02254990);
+}
+
+#define NitroStaticInit ov24_02254840
+#include "sinit.h"
+
+BOOL ov24_02254854(MemoPadAppHandler **appHandlerOut, s32 arg1, s32 arg2, s32 arg3) {
+    MemoPadAppHandler *appHandler = AllocFromHeap(HEAP_ID_POKETCH_APP, sizeof(MemoPadAppHandler));
+    if (appHandler != NULL) {
+        if (ov24_0225489C(appHandler, arg1, arg2, arg3)) {
+            if (SysTask_CreateOnMainQueue((SysTaskFunc)ov24_02254918, appHandler, 1) != NULL) {
+                *appHandlerOut = appHandler;
+                return TRUE;
+            }
+        }
+        FreeToHeap(appHandler);
+    }
+    return FALSE;
+}
+
+BOOL ov24_0225489C(MemoPadAppHandler *appHandler, u32 arg1, u32 arg2, u32 arg3) {
+    static const u8 ov24_022550F8[] = {
+        0x18, 0x58, 0xB4, 0xCC, 0x68, 0xA8, 0xB4, 0xCC
+    };
+    appHandler->drawState.unk16E8 = arg3;
+    appHandler->drawState.touchType = TOUCH_TYPE_DRAW;
+    if (ov24_02254CA0(&(appHandler->displayHandler), &(appHandler->drawState))) {
+        appHandler->unk0 = 0;
+        appHandler->unk1 = 0;
+        appHandler->unk2 = 0;
+        appHandler->touchHeld = FALSE;
+        appHandler->unk16FC = ov20_02254130(ov24_022550F8, 2, ov24_02254960, appHandler, 8);
+        appHandler->unk16F8 = arg1;
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void ov24_022548F4(MemoPadAppHandler *appHandler) {
+    ov20_02254198(appHandler->unk16FC);
+    ov24_02254D48(appHandler->displayHandler);
+    FreeToHeap(appHandler);
+}
+
+void ov24_02254918(void *arg0, MemoPadAppHandler *appHandler) {
+    static BOOL (*const ov24_02255100[3])(MemoPadAppHandler*) = {
+        ov24_022549AC, ov24_022549F8, ov24_02254C64
+    };
+    if (appHandler->unk0 < 3) {
+        ov20_02252C14(appHandler->unk16F8, appHandler->unk16FC);
+        if (ov24_02255100[appHandler->unk0](appHandler)) {
+            ov24_022548F4(appHandler);
+            sub_0200CAB4((s32)arg0);
+            ov20_022529A0(appHandler->unk16F8);
+        }
+    }
+}
+
+void ov24_02254960(s32 arg0, s32 arg1, s32 arg2, MemoPadAppHandler *appHandler) {
+    if (arg2 == 1) {
+        if (
+            (appHandler->drawState.touchType == TOUCH_TYPE_DRAW && arg0 == 0)
+            || (appHandler->drawState.touchType == TOUCH_TYPE_ERASE && arg0 == 1)
+        ) {
+            appHandler->drawState.touchType ^= 1;
+            ov24_02254D8C(appHandler->displayHandler, 1);
+        }
+    }
+}
+
+void ov24_02254990(MemoPadAppHandler *appHandler) {
+    appHandler->unk2 = 1;
+}
+
+void ov24_02254998(MemoPadAppHandler *appHandler, u8 arg1) {
+    if (appHandler->unk2 == 0) {
+        appHandler->unk0 = arg1;
+    }
+    else {
+        appHandler->unk0 = 2;
+    }
+    appHandler->unk1 = 0;
+}
+
+BOOL ov24_022549AC(MemoPadAppHandler *appHandler) {
+    switch (appHandler->unk1) {
+        case 0:
+            ov24_02254D8C(appHandler->displayHandler, 0);
+            appHandler->unk1++;
+            break;
+        case 1:
+            if (ov24_02254DB0(appHandler->displayHandler, 0)) {
+                ov20_0225298C(appHandler->unk16F8);
+                ov24_02254998(appHandler, 1);
+            }
+            break;
+        default:
+            break;
+    }
+    return FALSE;
+}
+
+BOOL ov24_022549F8(MemoPadAppHandler *appHandler) {
+    if (appHandler->unk2 != 0) {
+        ov24_02254998(appHandler, 2);
+    }
+    switch (appHandler->unk1) {
+        case 0:
+            if (ov20_02252C08(appHandler->unk16F8)) {
+                break;
+            }
+            if (appHandler->touchHeld) {
+                u32 x = appHandler->drawState.lastModifiedX;
+                u32 y = appHandler->drawState.lastModifiedY;
+                if (ov24_02254AD4(appHandler)) {
+                    ov24_02254B20(appHandler, x, y, appHandler->drawState.lastModifiedX, appHandler->drawState.lastModifiedY);
+                } else {
+                    appHandler->touchHeld = FALSE;
+                }
+            } else {
+                if (ov24_02254A70(appHandler)) {
+                    ov24_02254D8C(appHandler->displayHandler, 3);
+                    appHandler->touchHeld = TRUE;
+                }
+            }
+            break;
+    }
+    return FALSE;
+}
+
+BOOL ov24_02254A70(MemoPadAppHandler *appHandler) {
+    u32 x, y;
+    if (TouchScreen_GetTapState(&x, &y)) {
+        if (((x - 16) < 156) & ((y - 16) < 150)) {
+            x = (x - 16) >> 1;
+            y = (y - 16) >> 1;
+            if (appHandler->drawState.pixelData[x][y] != appHandler->drawState.touchType) {
+                appHandler->drawState.pixelData[x][y] = appHandler->drawState.touchType;
+                appHandler->drawState.lastModifiedX = x;
+                appHandler->drawState.lastModifiedY = y;
+                return TRUE;
+            }
+         }
+    }
+    return FALSE;
+}
+
+BOOL ov24_02254AD4(MemoPadAppHandler *appHandler) {
+    u32 x, y;
+    if (TouchScreen_GetTapState(&x, &y)) {
+        if (((x - 16) < 156) & ((y - 16) < 150)) {
+            x = (x - 16) >> 1;
+            y = (y - 16) >> 1;
+            appHandler->drawState.lastModifiedX = x;
+            appHandler->drawState.lastModifiedY = y;
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+void ov24_02254B20(MemoPadAppHandler *appHandler, u32 x0, u32 y0, u32 x1, u32 y1) {
+    if (y0 == y1 && x0 == x1) {
+        return;
+    }
+    u32 dx = x1 > x0 ? x1 - x0 : x0 - x1;
+    u32 dy = y1 > y0 ? y1 - y0 : y0 - y1;
+    s32 direction, offset;
+    fx32 f, g;
+    if (dx > dy) {
+        direction = (x1 > x0) ? 1 : -1;
+        if (dx != 0) {
+            f = ((y1 - y0) * 0x1000);
+            f /= (s32)dx;
+        } else {
+            f = 0;
+        }
+        g = (y0 << 12) + f;
+        x0 += direction;
+        while (x0 != x1) {
+            offset = g >> 12;
+            if ((x0 < 0x4e) && ((u32)offset < 0x4b)) {
+                if (appHandler->drawState.touchType != appHandler->drawState.pixelData[x0][offset]) {
+                    appHandler->drawState.pixelData[x0][offset] = appHandler->drawState.touchType;
+                    appHandler->drawState.lastModifiedX = x0;
+                    appHandler->drawState.lastModifiedY = offset;
+                    ov24_02254D8C(appHandler->displayHandler, 3);
+                }
+            }
+            x0 += direction;
+            g += f;
+        }
+    } else {
+        direction = (y1 > y0) ? 1 : -1;
+        if (dy != 0) {
+            f = ((x1 - x0) * 0x1000);
+            f /= (s32)dy;
+        } else {
+            f = 0;
+        }
+        g = (x0 << 12) + f;
+        y0 += direction;
+        while (y0 != y1) {
+            offset = g >> 12;
+            if ((y0 < 0x4b) && ((u32)offset < 0x4e)) {
+                if (appHandler->drawState.touchType != appHandler->drawState.pixelData[offset][y0]) {
+                    appHandler->drawState.pixelData[offset][y0] = appHandler->drawState.touchType;
+                    appHandler->drawState.lastModifiedX = offset;
+                    appHandler->drawState.lastModifiedY = y0;
+                    ov24_02254D8C(appHandler->displayHandler, 3);
+                }
+            }
+            y0 += direction;
+            g += f;
+        }
+    }
+    if ((y1 < 75) && (x1 < 78)) {
+        appHandler->drawState.lastModifiedX = x1;
+        appHandler->drawState.lastModifiedY = y1;
+        ov24_02254D8C(appHandler->displayHandler, 3);
+    }
+}
+
+BOOL ov24_02254C64(MemoPadAppHandler *appHandler) {
+    switch (appHandler->unk1) {
+        case 0:
+            ov24_02254D8C(appHandler->displayHandler, 5);
+            appHandler->unk1++;
+            break;
+        case 1:
+            if (ov24_02254DBC(appHandler->displayHandler)) {
+                return TRUE;
+            }
+            break;
+    }
+    return FALSE;
+}
diff --git a/arm9/overlays/24/src/ov24_02254CA0.c b/arm9/overlays/24/src/ov24_02254CA0.c
new file mode 100644
index 000000000..a3aedc5c8
--- /dev/null
+++ b/arm9/overlays/24/src/ov24_02254CA0.c
@@ -0,0 +1,248 @@
+#include "global.h"
+#include "bg_window.h"
+#include "unk_0200CA44.h"
+#include "gf_gfx_loader.h"
+#include "overlay_24.h"
+#include "SPI_pm.h"
+#include "constants/sndseq.h"
+#include "graphic/poketch.naix"
+
+extern BOOL sub_0208946C(u32 arg0, void *arg1, u32 arg2);
+extern void sub_02089444(u32 arg0, void *arg1, u32 arg2);
+extern void ov20_02252D7C(u32 arg0, u32 arg1);
+extern void ov20_02253F28(u32 *arg0, u32 arg1);
+extern void Poketch_PlaySoundEffect(u32 arg0);
+extern void *ov20_022538A0(void *arg0);
+extern void ov20_02253888(u32 *arg0, void *arg1);
+extern BOOL ov20_022537B8(void *arg0);
+extern BOOL ov20_02253794(void *arg0, u8 arg1);
+extern void ov20_022537E0(const u32 *arg0, u32 arg1, void *arg2, void *arg3, void *arg4, u32 arg5, u32 arg6);
+extern BOOL ov20_02253FBC(void *arg0, NarcId arg1, u32 arg2, u32 arg3, HeapID arg4);
+extern u32 *ov20_02253E74(u32 arg0, void *arg1, void *arg2);
+extern void ov20_02254014(void *arg0);
+extern void ov20_02253F14(u32 arg0, void *arg1);
+extern void ov20_022536F4(void *arg0, u32 arg1);
+extern BgConfig *ov20_02252D34();
+extern u32 ov20_02252D24();
+
+BOOL ov24_02254CA0(MemoPadDisplayHandler **displayHandlerOut, MemoPadDrawState *drawState) {
+    MemoPadDisplayHandler *displayHandler = AllocFromHeap(HEAP_ID_POKETCH_APP, sizeof(MemoPadDisplayHandler));
+    if (displayHandler != NULL) {
+        GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_MAIN));
+        ov20_022536F4(&(displayHandler->unk8), 0x10);
+        GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_MAIN));
+        displayHandler->drawState = drawState;
+        displayHandler->config = ov20_02252D34();
+        displayHandler->unk50 = ov20_02252D24();
+        GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_MAIN));
+        *displayHandlerOut = displayHandler;
+        return TRUE;
+    }
+    return FALSE;
+}
+
+BOOL ov24_02254D00(MemoPadDisplayHandler *displayHandler) {
+    static const WindowTemplate template = {
+        .bgId = GF_BG_LYR_SUB_3,
+        .left = 2,
+        .top = 2,
+        .width = 20,
+        .height = 19,
+        .palette = 0,
+        .baseTile = 12,
+    };
+    displayHandler->window = AllocWindows(HEAP_ID_POKETCH_APP, 1);
+    if (displayHandler->window != NULL) {
+        AddWindow(displayHandler->config, displayHandler->window, &template);
+        if (sub_0208946C(displayHandler->drawState->unk16E8, displayHandler->window->pixelBuffer, 0x2f80) == 0) {
+            FillWindowPixelBuffer(displayHandler->window, MEMO_PAD_PIXEL_TYPE_EMPTY);
+        }
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void ov24_02254D48(MemoPadDisplayHandler *displayHandler) {
+    if (displayHandler != NULL) {
+        GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_MAIN));
+        if (displayHandler->window != NULL) {
+            sub_02089444(displayHandler->drawState->unk16E8, displayHandler->window->pixelBuffer, 0x2f80);
+            RemoveWindow(displayHandler->window);
+            FreeToHeap(displayHandler->window);
+        }
+        FreeToHeap(displayHandler);
+    }
+}
+
+void ov24_02254D8C(MemoPadDisplayHandler *displayHandler, u32 arg1) {
+    // TODO: types
+    static const u32 ov24_0225516C[] = {
+        0x00, (u32)ov24_02254DDC, 0x00,
+        0x01, (u32)ov24_02254EE0, 0x00,
+        0x02, (u32)ov24_02254F28, 0x00,
+        0x03, (u32)ov24_02254F40, 0x00,
+        0x04, (u32)ov24_02255038, 0x00,
+        0x05, (u32)ov24_02255050, 0x00,
+        0x00, 0x00000000, 0x00,
+    };
+    ov20_022537E0(ov24_0225516C, arg1, displayHandler, displayHandler->drawState, &(displayHandler->unk8), 2, 8);
+}
+
+BOOL ov24_02254DB0(MemoPadDisplayHandler *displayHandler, u8 arg1) {
+    return ov20_02253794(&(displayHandler->unk8), arg1);
+}
+
+BOOL ov24_02254DBC(MemoPadDisplayHandler *displayHandler) {
+    return ov20_022537B8(&(displayHandler->unk8));
+}
+
+void ov24_02254DC8(void *arg0) {
+    ov20_02253888(&(((MemoPadDisplayHandler*)ov20_022538A0(arg0))->unk8), arg0);
+}
+
+void ov24_02254DDC(void *arg0, void *arg1) {
+    static const BgTemplate template_7000 = {
+        .x = 0,
+        .y = 0,
+        .bufferSize = 0,
+        .baseTile = 0,
+        .size = 1,
+        .colorMode = 0,
+        .screenBase = GX_BG_SCRBASE_0x7000,
+        .charBase = GX_BG_CHARBASE_0x00000,
+        .bgExtPltt = 0,
+        .priority = 2,
+        .areaOver = 0,
+        .dummy = 0,
+        .mosaic = 0,
+    };
+    static const BgTemplate template_7800 = {
+        .x = 0,
+        .y = 0,
+        .bufferSize = 0x800,
+        .baseTile = 0,
+        .size = 1,
+        .colorMode = 0,
+        .screenBase = GX_BG_SCRBASE_0x7800,
+        .charBase = GX_BG_CHARBASE_0x00000,
+        .bgExtPltt = 0,
+        .priority = 3,
+        .areaOver = 0,
+        .dummy = 0,
+        .mosaic = 0,
+    };
+    GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_APP));
+    GXSDispCnt dispcnt;
+    MemoPadDisplayHandler *displayHandler = ov20_022538A0(arg1);
+    InitBgFromTemplate(displayHandler->config, GF_BG_LYR_SUB_2, &template_7000, 0);
+    InitBgFromTemplate(displayHandler->config, GF_BG_LYR_SUB_3, &template_7800, 0);
+    GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_APP));   
+    GfGfxLoader_LoadCharData(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0030_bin, displayHandler->config, GF_BG_LYR_SUB_2, 0, 0, TRUE, HEAP_ID_POKETCH_APP);
+    GfGfxLoader_LoadScrnData(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0031_NSCR, displayHandler->config, GF_BG_LYR_SUB_2, 0, 0, TRUE, HEAP_ID_POKETCH_APP);
+    ov20_02252D7C(0,0);
+    GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_APP));
+    ov24_02254D00(displayHandler);
+    CopyWindowToVram(displayHandler->window);
+    GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_APP));
+    ov24_02255078(displayHandler);
+    GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_APP));
+    BgCommitTilemapBufferToVram(displayHandler->config, GF_BG_LYR_SUB_3);
+    dispcnt.raw = reg_GXS_DB_DISPCNT;
+    GXS_SetVisiblePlane(dispcnt.visiblePlane | GX_PLANEMASK_BG2 | GX_PLANEMASK_OBJ);
+    ov24_02254DC8(arg1);
+    GF_ASSERT(GF_heap_c_dummy_return_true(HEAP_ID_POKETCH_APP));
+}
+
+void ov24_02254EE0(u32 arg0, void *arg1) {
+    MemoPadDisplayHandler *displayHandler = ov20_022538A0(arg1);
+    if (displayHandler->drawState->touchType == TOUCH_TYPE_DRAW) {
+        ov20_02253F28(displayHandler->unk68[0], 0);
+        ov20_02253F28(displayHandler->unk68[1], 3);
+    } else {
+        ov20_02253F28(displayHandler->unk68[0], 1);
+        ov20_02253F28(displayHandler->unk68[1], 2);
+    }
+    Poketch_PlaySoundEffect(SEQ_SE_DP_POKETCH_003);
+    ov24_02254DC8(arg1);
+}
+
+void ov24_02254F28(s32 arg0, void *arg1) {
+    MemoPadDisplayHandler *displayHandler = ov20_022538A0(arg1);
+    CopyWindowPixelsToVram_TextMode(displayHandler->window);
+    ov24_02254DC8(arg1);
+}
+
+void ov24_02254F40(u32 arg0, void *arg1) {
+    MemoPadDisplayHandler *displayHandler = ov20_022538A0(arg1);
+    MemoPadDrawState *drawState = displayHandler->drawState;
+    if (drawState->touchType == TOUCH_TYPE_ERASE) {
+        s32 width, height;
+        width = height = 8;
+        s32 x = drawState->lastModifiedX * 2 - 4;
+        s32 y = drawState->lastModifiedY * 2 - 4;
+        if (x < 0) {
+            width += x;
+            x = 0;
+        }
+        if (y < 0) {
+            height += y;
+            y = 0;
+        }
+        FillWindowPixelRect(displayHandler->window, MEMO_PAD_PIXEL_TYPE_EMPTY, x, y, width, height);
+        s32 a = (x >> 3) + (y >> 3) * 0x14;
+        s32 e = ((x + width - 1) >> 3) - (x >> 3) + 1;
+        s32 b = ((y + height - 1) >> 3) - (y >> 3) + 1;
+        while (b--) {
+            GXS_LoadBG3Char((u8*)(displayHandler->window->pixelBuffer) + (a * 0x20), (a + 0xc) * 0x20, e * 0x20);
+            a += 0x14;
+        }
+    } else {
+        s32 height = 2;
+        s32 width = 2;
+        s32 x = drawState->lastModifiedX * 2;
+        s32 y = drawState->lastModifiedY * 2;
+        s32 a = (x >> 3) + ((y >> 3) * 0x14);
+        FillWindowPixelRect(displayHandler->window, MEMO_PAD_PIXEL_TYPE_FILLED, x, y, width, height);
+        GXS_LoadBG3Char((u8*)(displayHandler->window->pixelBuffer) + a * 0x20, (a + 0xc) * 0x20, 0x20);
+    }
+    ov24_02254DC8(arg1);
+}
+
+void ov24_02255038(u32 arg0, void *arg1) {
+    MemoPadDisplayHandler *displayHandler = ov20_022538A0(arg1);
+    CopyWindowPixelsToVram_TextMode(displayHandler->window);
+    ov24_02254DC8(arg1);
+}
+
+void ov24_02255050(u32 arg0, void *arg1) {
+    MemoPadDisplayHandler *displayHandler = ov20_022538A0(arg1);
+    ov24_022550D4(displayHandler);
+    FreeBgTilemapBuffer(displayHandler->config, GF_BG_LYR_SUB_2);
+    FreeBgTilemapBuffer(displayHandler->config, GF_BG_LYR_SUB_3);
+    ov24_02254DC8(arg1);
+}
+
+void ov24_02255078(MemoPadDisplayHandler *displayHandler) {
+    // TODO: types
+    static const u32 ov24_0225514C[2][4] = {
+        {
+            0xC0000, 0x38000, 0x2000000, 0x0
+        },
+        {
+            0xC0000, 0x88000, 0x2000003, 0x0
+        }
+    };
+    GfGfxLoader_LoadWholePalette(NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0032_bin, PM_LCD_BOTTOM, 0, 0, TRUE, HEAP_ID_POKETCH_APP);
+    if (ov20_02253FBC(&(displayHandler->unk54), NARC_GRAPHIC_POKETCH, NARC_poketch_narc_0033_NCER, NARC_poketch_narc_0034_NANR, HEAP_ID_POKETCH_APP)) {
+        for (s32 i = 0; i < 2; i++) {
+            displayHandler->unk68[i] = ov20_02253E74(displayHandler->unk50, &(ov24_0225514C[i]), &(displayHandler->unk54));
+        }
+    }
+}
+
+void ov24_022550D4(MemoPadDisplayHandler *displayHandler) {
+    for (u32 i = 0; i < 2; i++) {
+        ov20_02253F14(displayHandler->unk50, displayHandler->unk68[i]);
+    }
+    ov20_02254014(&(displayHandler->unk54));
+}
diff --git a/arm9/overlays/24/src/overlay_24_sinit.c b/arm9/overlays/24/src/overlay_24_sinit.c
deleted file mode 100644
index f609bfbfd..000000000
--- a/arm9/overlays/24/src/overlay_24_sinit.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include "global.h"
-
-extern void Poketch_InitApp(void *func1, void *func2);
-extern void ov24_02254854();
-extern void ov24_02254990();
-
-static void ov24_02254840(void)
-{
-    Poketch_InitApp(ov24_02254854, ov24_02254990);
-}
-
-#define NitroStaticInit ov24_02254840
-#include "sinit.h"
diff --git a/arm9/overlays/26/asm/ov26_02254854.s b/arm9/overlays/26/asm/ov26_02254854.s
index 31035b452..3245e108e 100644
--- a/arm9/overlays/26/asm/ov26_02254854.s
+++ b/arm9/overlays/26/asm/ov26_02254854.s
@@ -392,7 +392,7 @@ _02254B04:
 	beq _02254B90
 	add r0, sp, #4
 	add r1, sp, #0
-	bl ov20_02252B68
+	bl TouchScreen_GetTapState
 	cmp r0, #0
 	beq _02254B90
 	ldr r1, [sp, #4]
diff --git a/arm9/overlays/27/asm/overlay_27.s b/arm9/overlays/27/asm/overlay_27.s
index 96e31266a..102a3b056 100644
--- a/arm9/overlays/27/asm/overlay_27.s
+++ b/arm9/overlays/27/asm/overlay_27.s
@@ -196,7 +196,7 @@ _0225499C:
 	add r1, r4, #0
 	add r0, #0x6c
 	add r1, #0x70
-	bl ov20_02252B68
+	bl TouchScreen_GetTapState
 	add r1, r4, #0
 	add r1, #0x68
 	strh r0, [r1]
@@ -1427,7 +1427,7 @@ ov27_022552D0: ; 0x022552D0
 	mov r1, #6
 	bl BgCommitTilemapBufferToVram
 	ldr r0, _02255338 ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r6, #0
 	bl ov27_02254BF4
 	add sp, #0x10
diff --git a/arm9/overlays/28/asm/overlay_28.s b/arm9/overlays/28/asm/overlay_28.s
index f61281ce6..d327061f2 100644
--- a/arm9/overlays/28/asm/overlay_28.s
+++ b/arm9/overlays/28/asm/overlay_28.s
@@ -296,7 +296,7 @@ _02254A64:
 	add r1, r4, #0
 	add r0, #0x54
 	add r1, #0x58
-	bl ov20_02252B68
+	bl TouchScreen_GetTapState
 	add r1, r4, #0
 	add r1, #0x50
 	strh r0, [r1]
@@ -2153,7 +2153,7 @@ _02255836:
 	add r1, r6, #0
 	bl ov28_02255318
 	ldr r0, _0225591C ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	add r0, #0x34
 	ldrb r0, [r0]
diff --git a/arm9/overlays/29/asm/overlay_29.s b/arm9/overlays/29/asm/overlay_29.s
index 140064d57..fd56387c1 100644
--- a/arm9/overlays/29/asm/overlay_29.s
+++ b/arm9/overlays/29/asm/overlay_29.s
@@ -208,7 +208,7 @@ _022549AA:
 	add r0, r4, #0
 	bl ov29_02254AA8
 	ldr r0, _02254A60 ; =0x00000668
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4, #0x48]
 	mov r1, #2
 	bl ov29_02254CC0
@@ -271,7 +271,7 @@ _02254A3C:
 	cmp r0, #0
 	beq _02254A5A
 	ldr r0, _02254A60 ; =0x00000668
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4, #0x48]
 	mov r1, #2
 	bl ov29_02254CC0
diff --git a/arm9/overlays/30/asm/overlay_30.s b/arm9/overlays/30/asm/overlay_30.s
index e38a9b622..38ed73a93 100644
--- a/arm9/overlays/30/asm/overlay_30.s
+++ b/arm9/overlays/30/asm/overlay_30.s
@@ -621,7 +621,7 @@ ov30_02254CC4: ; 0x02254CC4
 	b _02254CF6
 _02254CDE:
 	ldr r0, _02254D00 ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4, #0x24]
 	mov r1, #1
 	bl ov20_02253F28
diff --git a/arm9/overlays/31/asm/overlay_31.s b/arm9/overlays/31/asm/overlay_31.s
index 3d1675199..a31085acd 100644
--- a/arm9/overlays/31/asm/overlay_31.s
+++ b/arm9/overlays/31/asm/overlay_31.s
@@ -611,7 +611,7 @@ ov31_02254CB8: ; 0x02254CB8
 	b _02254CEA
 _02254CD2:
 	ldr r0, _02254CF4 ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4, #0x24]
 	mov r1, #1
 	bl ov20_02253F28
diff --git a/arm9/overlays/32/asm/overlay_32.s b/arm9/overlays/32/asm/overlay_32.s
index 07445ac63..94e580cba 100644
--- a/arm9/overlays/32/asm/overlay_32.s
+++ b/arm9/overlays/32/asm/overlay_32.s
@@ -534,7 +534,7 @@ ov32_02254C08: ; 0x02254C08
 	bl ov20_022538A4
 	add r4, r0, #0
 	ldr r0, _02254C50 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4]
 	cmp r0, #0
 	ldr r0, [r5, #0x24]
diff --git a/arm9/overlays/34/asm/overlay_34.s b/arm9/overlays/34/asm/overlay_34.s
index d2fedaaee..68ff3593b 100644
--- a/arm9/overlays/34/asm/overlay_34.s
+++ b/arm9/overlays/34/asm/overlay_34.s
@@ -228,14 +228,14 @@ _022549C4:
 	mov r1, #2
 	bl ov34_02254A98
 	ldr r0, _02254A20 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldrb r0, [r4, #1]
 	add r0, r0, #1
 	strb r0, [r4, #1]
 	b _02254A1A
 _022549EE:
 	ldr r0, _02254A24 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254A1A
 _022549F6:
 	ldr r0, [r4, #0x30]
diff --git a/arm9/overlays/35/asm/overlay_35.s b/arm9/overlays/35/asm/overlay_35.s
index e407fe386..f4a3e1e74 100644
--- a/arm9/overlays/35/asm/overlay_35.s
+++ b/arm9/overlays/35/asm/overlay_35.s
@@ -735,7 +735,7 @@ _02254DB6:
 	add r0, r4, #0
 	bl ov35_02254E58
 	ldr r0, _02254E54 ; =0x00000678
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov20_022538B0
 	pop {r4, r5, r6, pc}
diff --git a/arm9/overlays/36/asm/overlay_36.s b/arm9/overlays/36/asm/overlay_36.s
index 9a2b4213a..d6c1fcf1f 100644
--- a/arm9/overlays/36/asm/overlay_36.s
+++ b/arm9/overlays/36/asm/overlay_36.s
@@ -293,13 +293,13 @@ _02254A4C:
 	ldr r0, [r4, r0]
 	bl ov36_02254F0C
 	ldr r0, _02254BD8 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r0, #1
 	strb r0, [r4, #1]
 	b _02254AA6
 _02254A82:
 	ldr r0, _02254BDC ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254AA6
 _02254A8A:
 	add r0, r1, #0
@@ -311,7 +311,7 @@ _02254A8A:
 	mov r1, #5
 	bl ov36_02254F0C
 	ldr r0, _02254BD8 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r0, #3
 	strb r0, [r4, #1]
 _02254AA6:
@@ -368,7 +368,7 @@ _02254AF4:
 	bne _02254B46
 _02254B0C:
 	ldr r0, _02254BDC ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254B46
 _02254B14:
 	add r0, r1, #0
@@ -390,7 +390,7 @@ _02254B14:
 	ldr r0, [r4, r0]
 	bl ov36_02254F0C
 	ldr r0, _02254BD8 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r0, #2
 	strb r0, [r4, #1]
 _02254B46:
@@ -474,7 +474,7 @@ ov36_02254BE4: ; 0x02254BE4
 	add r4, r0, #0
 	add r0, sp, #4
 	add r1, sp, #0
-	bl ov20_02252B68
+	bl TouchScreen_GetTapState
 	cmp r0, #0
 	beq _02254C3E
 	ldr r1, [sp, #4]
@@ -530,7 +530,7 @@ ov36_02254C44: ; 0x02254C44
 	add r4, r0, #0
 	add r0, sp, #4
 	add r1, sp, #0
-	bl ov20_02252B68
+	bl TouchScreen_GetTapState
 	cmp r0, #0
 	beq _02254C8A
 	ldr r1, [sp, #4]
@@ -1537,7 +1537,7 @@ _022553CA:
 	cmp r0, #0
 	beq _022553E2
 	ldr r0, _022553E4 ; =0x0000066A
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov36_02254F48
 _022553E2:
diff --git a/arm9/overlays/37/asm/overlay_37.s b/arm9/overlays/37/asm/overlay_37.s
index bcb0ba845..565d59686 100644
--- a/arm9/overlays/37/asm/overlay_37.s
+++ b/arm9/overlays/37/asm/overlay_37.s
@@ -569,7 +569,7 @@ ov37_02254C44: ; 0x02254C44
 	pop {r4, r5, r6, pc}
 _02254C6C:
 	ldr r0, _02254D18 ; =0x00000675
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4, #0x24]
 	mov r1, #0
 	bl ov20_02253F28
@@ -617,13 +617,13 @@ _02254C9E:
 	cmp r1, r0
 	ldr r0, _02254D24 ; =0x00000676
 	bge _02254CE0
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r0, #9
 	lsl r0, r0, #0x10
 	str r0, [r4, #0x3c]
 	b _02254D02
 _02254CE0:
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r6]
 	cmp r0, #0
 	beq _02254CEE
diff --git a/arm9/overlays/38/asm/overlay_38.s b/arm9/overlays/38/asm/overlay_38.s
index 2032079eb..0ead006ca 100644
--- a/arm9/overlays/38/asm/overlay_38.s
+++ b/arm9/overlays/38/asm/overlay_38.s
@@ -952,7 +952,7 @@ _02254F56:
 	ldr r0, [r0, #0x34]
 	bl ov20_02253F28
 	ldr r0, _02254F70 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov38_02254D70
 	pop {r3, r4, r5, pc}
diff --git a/arm9/overlays/39/asm/overlay_39.s b/arm9/overlays/39/asm/overlay_39.s
index dd67f2043..a17fb49b3 100644
--- a/arm9/overlays/39/asm/overlay_39.s
+++ b/arm9/overlays/39/asm/overlay_39.s
@@ -333,7 +333,7 @@ _02254AA8:
 	b _02254AC4
 _02254ABE:
 	ldr r0, _02254B4C ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 _02254AC4:
 	mov r0, #0
 	add r4, #0x46
@@ -887,7 +887,7 @@ ov39_02254ECC: ; 0x02254ECC
 	add r0, r5, #0
 	bl ov20_022538A4
 	ldr r0, _02254EF4 ; =0x00000669
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r4, #0x24]
 	mov r1, #0xa
 	bl ov20_02253F28
@@ -929,7 +929,7 @@ ov39_02254F1C: ; 0x02254F1C
 	add r0, #0x32
 	ldrb r5, [r0]
 	ldr r0, _02254F5C ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	lsl r0, r5, #1
 	add r3, r7, r0
 	ldrh r0, [r3, #0x24]
@@ -961,7 +961,7 @@ ov39_02254F60: ; 0x02254F60
 	add r0, #0x33
 	ldrb r5, [r0]
 	ldr r0, _02254FA0 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	lsl r0, r5, #1
 	add r3, r7, r0
 	ldrh r0, [r3, #0x24]
@@ -1326,7 +1326,7 @@ _0225522C:
 	ldr r0, [r4, #0x6c]
 	lsl r1, r1, #2
 	ldr r0, [r0, r1]
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02255276
 _02255240:
 	ldr r0, [r4, #0x2c]
diff --git a/arm9/overlays/40/asm/overlay_40.s b/arm9/overlays/40/asm/overlay_40.s
index c5128398e..8b939e886 100644
--- a/arm9/overlays/40/asm/overlay_40.s
+++ b/arm9/overlays/40/asm/overlay_40.s
@@ -319,7 +319,7 @@ _02254A9A:
 	mov r0, #0
 	str r0, [r4, #0x1c]
 	ldr r0, _02254B4C ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254B46
 _02254AB0:
 	cmp r1, #1
@@ -465,7 +465,7 @@ _02254BB2:
 	cmp r0, #0
 	bne _02254BC4
 	ldr r0, _02254C18 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254C12
 _02254BC4:
 	add r0, r4, #0
@@ -1139,7 +1139,7 @@ ov40_022550C0: ; 0x022550C0
 	bl ov20_022538A4
 	add r4, r0, #0
 	ldr r0, _02255138 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r5, #0x34]
 	mov r1, #3
 	bl ov20_02253F28
@@ -1191,7 +1191,7 @@ ov40_0225513C: ; 0x0225513C
 	bl ov20_022538A4
 	add r4, r0, #0
 	ldr r0, _022551B4 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, [r5, #0x34]
 	mov r1, #2
 	bl ov20_02253F28
@@ -1299,7 +1299,7 @@ _0225521A:
 	mov r1, #1
 	bl ov20_02253F28
 	ldr r0, _02255304 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	ldr r0, _02255308 ; =0x00000126
 	bl ov20_02252B48
 	add r0, r4, #0
diff --git a/arm9/overlays/41/asm/overlay_41.s b/arm9/overlays/41/asm/overlay_41.s
index 3c5e2d61b..eff687522 100644
--- a/arm9/overlays/41/asm/overlay_41.s
+++ b/arm9/overlays/41/asm/overlay_41.s
@@ -501,11 +501,11 @@ _02254BBA:
 	mov r1, #5
 	bl ov41_022553A4
 	ldr r0, _02254D18 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254C32
 _02254BEE:
 	ldr r0, _02254D18 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	bl ov41_0225504C
 	mov r3, #0
@@ -531,7 +531,7 @@ _02254BEE:
 	b _02254C32
 _02254C2C:
 	ldr r0, _02254D1C ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 _02254C32:
 	mov r0, #0
 	pop {r4, pc}
@@ -714,11 +714,11 @@ _02254D6C:
 	b _02254E00
 _02254D86:
 	ldr r0, _02254E04 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254E00
 _02254D8E:
 	ldr r0, _02254E08 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	mov r1, #1
 	mov r2, #0
@@ -738,7 +738,7 @@ _02254D8E:
 	b _02254E00
 _02254DC0:
 	ldr r0, _02254E08 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	mov r1, #0
 	mov r2, #1
@@ -796,7 +796,7 @@ _02254E20:
 	b _02254EAC
 _02254E3A:
 	ldr r0, _02254EB0 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r1, #1
 	add r0, r4, #0
 	add r2, r1, #0
@@ -813,11 +813,11 @@ _02254E3A:
 	b _02254EAC
 _02254E64:
 	ldr r0, _02254EB4 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254EAC
 _02254E6C:
 	ldr r0, _02254EB0 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	mov r1, #0
 	mov r2, #1
@@ -875,11 +875,11 @@ _02254ECC:
 	b _02254F52
 _02254EE6:
 	ldr r0, _02254F58 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _02254F52
 _02254EEE:
 	ldr r0, _02254F5C ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	mov r1, #0
 	mov r2, #1
@@ -900,7 +900,7 @@ _02254EEE:
 	b _02254F52
 _02254F20:
 	ldr r0, _02254F5C ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	mov r1, #0
 	mov r2, #1
@@ -953,7 +953,7 @@ _02254F74:
 	b _0225500A
 _02254F8E:
 	ldr r0, _02255010 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r1, #0
 	add r0, r4, #0
 	add r2, r1, #0
@@ -971,11 +971,11 @@ _02254F8E:
 	b _0225500A
 _02254FBA:
 	ldr r0, _02255014 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	b _0225500A
 _02254FC2:
 	ldr r0, _02255010 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r4, #0
 	mov r1, #0
 	mov r2, #1
@@ -1859,7 +1859,7 @@ _02255670:
 	bl ov20_02253F28
 _0225567E:
 	ldr r0, _0225568C ; =0x00000677
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r0, #0
 	add r4, #0xa4
 	str r0, [r4]
diff --git a/arm9/overlays/42/asm/overlay_42.s b/arm9/overlays/42/asm/overlay_42.s
index 79771c4c6..02cde9a1e 100644
--- a/arm9/overlays/42/asm/overlay_42.s
+++ b/arm9/overlays/42/asm/overlay_42.s
@@ -399,7 +399,7 @@ _02254B40:
 	str r0, [r4, #0xc]
 	add r0, sp, #4
 	add r1, sp, #0
-	bl ov20_02252B68
+	bl TouchScreen_GetTapState
 	cmp r0, #0
 	beq _02254B68
 	ldr r0, [r4, #0x28]
diff --git a/arm9/overlays/43/asm/overlay_43.s b/arm9/overlays/43/asm/overlay_43.s
index 7da079f94..4cda63682 100644
--- a/arm9/overlays/43/asm/overlay_43.s
+++ b/arm9/overlays/43/asm/overlay_43.s
@@ -765,7 +765,7 @@ _02254DCE:
 	orr r0, r1
 	strb r0, [r2, #1]
 	ldr r0, _02254E74 ; =0x00000678
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov20_022538B0
 	pop {r3, r4, r5, pc}
diff --git a/arm9/overlays/44/asm/ov44_02254A54.s b/arm9/overlays/44/asm/ov44_02254A54.s
index 07f4c4a6a..42d1a1aa7 100644
--- a/arm9/overlays/44/asm/ov44_02254A54.s
+++ b/arm9/overlays/44/asm/ov44_02254A54.s
@@ -249,7 +249,7 @@ ov44_02254C14: ; 0x02254C14
 	bl ov20_022538A4
 	add r4, r0, #0
 	ldr r0, _02254C50 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	mov r0, #0
 	add r1, r0, #0
 	bl ov20_02252D7C
diff --git a/arm9/overlays/47/asm/overlay_47.s b/arm9/overlays/47/asm/overlay_47.s
index 1b4d8e03c..ce06dd9f4 100644
--- a/arm9/overlays/47/asm/overlay_47.s
+++ b/arm9/overlays/47/asm/overlay_47.s
@@ -213,7 +213,7 @@ _022549CA:
 	b _022549DA
 _022549D4:
 	ldr r0, _022549E0 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 _022549DA:
 	mov r0, #0
 	pop {r3, r4, r5, pc}
@@ -993,7 +993,7 @@ ov47_02254F58: ; 0x02254F58
 	add r0, r4, #0
 	bl ov47_022550FC
 	ldr r0, _02254F98 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov47_02254E60
 	pop {r3, r4, r5, pc}
@@ -1026,7 +1026,7 @@ ov47_02254F9C: ; 0x02254F9C
 	add r0, r4, #0
 	bl ov47_02255184
 	ldr r0, _02254FE4 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov47_02254E60
 	pop {r3, r4, r5, pc}
@@ -1059,7 +1059,7 @@ ov47_02254FE8: ; 0x02254FE8
 	add r0, r4, #0
 	bl ov47_022551D8
 	ldr r0, _02255030 ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov47_02254E60
 	pop {r3, r4, r5, pc}
@@ -1092,7 +1092,7 @@ ov47_02255034: ; 0x02255034
 	add r0, r4, #0
 	bl ov47_02255250
 	ldr r0, _0225507C ; =0x0000066E
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov47_02254E60
 	pop {r3, r4, r5, pc}
@@ -1129,7 +1129,7 @@ ov47_02255080: ; 0x02255080
 	add r1, r6, #0
 	bl ov47_022552D8
 	ldr r0, _022550D4 ; =0x00000663
-	bl ov20_02252B28
+	bl Poketch_PlaySoundEffect
 	add r0, r5, #0
 	bl ov47_02254E60
 	pop {r4, r5, r6, pc}
diff --git a/include/heap.h b/include/heap.h
index 81206cd40..41f74e891 100644
--- a/include/heap.h
+++ b/include/heap.h
@@ -12,7 +12,8 @@ typedef enum HeapID {
     HEAP_ID_2,
     HEAP_ID_MAIN,
     HEAP_ID_4,
-    HEAP_ID_8 = 8,
+    HEAP_ID_POKETCH_MAIN = 7,
+    HEAP_ID_POKETCH_APP,
     HEAP_ID_FIELD = 11,
     HEAP_ID_15 = 15,
     HEAP_ID_32 = 32,