diff --git a/arm9/arm9.lsf b/arm9/arm9.lsf
index 3bf04500e..5a4f36ba9 100644
--- a/arm9/arm9.lsf
+++ b/arm9/arm9.lsf
@@ -182,7 +182,7 @@ Static arm9
 	Object scrcmd_move_relearner.o
 	Object scrcmd_25.o
 	Object unk_02046030.o
-	Object event_data.o
+	Object save_vars_flags.o
 	Object task.o
 	Object encounter.o
 	Object unk_02047500.o
diff --git a/arm9/asm/unk_02038C78.s b/arm9/asm/unk_02038C78.s
index 96139b454..77bdfe3ad 100644
--- a/arm9/asm/unk_02038C78.s
+++ b/arm9/asm/unk_02038C78.s
@@ -1958,7 +1958,7 @@ _020394D0:
 	cmp r4, r1
 	bhs _020394DE
 	add r1, r4, #0x0
-	bl GetVarAddr
+	bl Save_VarsFlags_GetVarAddr
 	pop {r3-r5, pc}
 _020394DE:
 	ldr r1, _020394EC ; =0x00007FD7
@@ -2008,7 +2008,7 @@ FlagCheck: ; 0x02039528
 	add r4, r1, #0x0
 	bl Save_VarsFlags_Get
 	add r1, r4, #0x0
-	bl CheckFlagInArray
+	bl Save_VarsFlags_CheckFlagInArray
 	pop {r4, pc}
 	.balign 4
 
@@ -2019,7 +2019,7 @@ FieldSystem_FlagSet: ; 0x0203953C
 	add r4, r1, #0x0
 	bl Save_VarsFlags_Get
 	add r1, r4, #0x0
-	bl SetFlagInArray
+	bl Save_VarsFlags_SetFlagInArray
 	pop {r4, pc}
 	.balign 4
 
@@ -2030,7 +2030,7 @@ FlagClear: ; 0x02039550
 	add r4, r1, #0x0
 	bl Save_VarsFlags_Get
 	add r1, r4, #0x0
-	bl ClearFlagInArray
+	bl Save_VarsFlags_ClearFlagInArray
 	pop {r4, pc}
 	.balign 4
 
@@ -2041,7 +2041,7 @@ ResetTempFlagsAndVars: ; 0x02039564
 	bl Save_VarsFlags_Get
 	mov r1, #0x1
 	add r4, r0, #0x0
-	bl GetFlagAddr
+	bl Save_VarsFlags_GetFlagAddr
 	mov r1, #0x0
 	strb r1, [r0, #0x0]
 	strb r1, [r0, #0x1]
@@ -2054,7 +2054,7 @@ ResetTempFlagsAndVars: ; 0x02039564
 	mov r1, #0x1
 	add r0, r4, #0x0
 	lsl r1, r1, #0xe
-	bl GetVarAddr
+	bl Save_VarsFlags_GetVarAddr
 	mov r1, #0x0
 	mov r2, #0x40
 	bl memset
@@ -2068,7 +2068,7 @@ sub_0203959C: ; 0x0203959C
 	bl Save_VarsFlags_Get
 	mov r1, #0xaa
 	lsl r1, r1, #0x4
-	bl GetFlagAddr
+	bl Save_VarsFlags_GetFlagAddr
 	mov r2, #0x18
 	mov r1, #0x0
 _020395B0:
@@ -2163,7 +2163,7 @@ TrainerFlagCheck: ; 0x02039640
 	add r1, r4, r1
 	lsl r1, r1, #0x10
 	lsr r1, r1, #0x10
-	bl CheckFlagInArray
+	bl Save_VarsFlags_CheckFlagInArray
 	pop {r4, pc}
 	.balign 4
 
@@ -2178,7 +2178,7 @@ TrainerFieldSystem_FlagSet: ; 0x0203965C
 	add r1, r4, r1
 	lsl r1, r1, #0x10
 	lsr r1, r1, #0x10
-	bl SetFlagInArray
+	bl Save_VarsFlags_SetFlagInArray
 	pop {r4, pc}
 	.balign 4
 
@@ -2193,7 +2193,7 @@ TrainerFlagClear: ; 0x02039678
 	add r1, r4, r1
 	lsl r1, r1, #0x10
 	lsr r1, r1, #0x10
-	bl ClearFlagInArray
+	bl Save_VarsFlags_ClearFlagInArray
 	pop {r4, pc}
 	.balign 4
 
diff --git a/arm9/asm/unk_0205F314.s b/arm9/asm/unk_0205F314.s
index c5308a25d..b188edd4a 100644
--- a/arm9/asm/unk_0205F314.s
+++ b/arm9/asm/unk_0205F314.s
@@ -18,7 +18,7 @@ sub_0205F314: ; 0x0205F314
 	push {r3-r5, lr}
 	add r5, r1, #0x0
 	add r4, r2, #0x0
-	bl GetVarAddr
+	bl Save_VarsFlags_GetVarAddr
 	mov r1, #0x1
 	lsl r1, r1, #0xe
 	cmp r5, r1
@@ -44,7 +44,7 @@ _0205F33C:
 	thumb_func_start sub_0205F344
 sub_0205F344: ; 0x0205F344
 	push {r3, lr}
-	bl GetVarAddr
+	bl Save_VarsFlags_GetVarAddr
 	cmp r0, #0x0
 	bne _0205F352
 	mov r0, #0x0
diff --git a/arm9/global.inc b/arm9/global.inc
index 8d4c183c3..e449eb6b2 100644
--- a/arm9/global.inc
+++ b/arm9/global.inc
@@ -3423,11 +3423,11 @@
 .extern Save_VarsFlags_sizeof
 .extern Save_VarsFlags_Init
 .extern Save_VarsFlags_Get
-.extern CheckFlagInArray
-.extern SetFlagInArray
-.extern ClearFlagInArray
-.extern GetFlagAddr
-.extern GetVarAddr
+.extern Save_VarsFlags_CheckFlagInArray
+.extern Save_VarsFlags_SetFlagInArray
+.extern Save_VarsFlags_ClearFlagInArray
+.extern Save_VarsFlags_GetFlagAddr
+.extern Save_VarsFlags_GetVarAddr
 .extern FieldSystem_CreateTask
 .extern TaskManager_Jump
 .extern TaskManager_Call
diff --git a/arm9/overlays/52/include/overlay_52.h b/arm9/overlays/52/include/overlay_52.h
index 8f761856a..af54f32c8 100644
--- a/arm9/overlays/52/include/overlay_52.h
+++ b/arm9/overlays/52/include/overlay_52.h
@@ -2,7 +2,7 @@
 #define POKEDIAMOND_OVERLAY_52_H
 
 #include "global.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "main.h"
 #include "math_util.h"
 #include "options.h"
diff --git a/arm9/src/encounter.c b/arm9/src/encounter.c
index e1316834e..db43fcaf9 100644
--- a/arm9/src/encounter.c
+++ b/arm9/src/encounter.c
@@ -2,7 +2,7 @@
 #include "encounter.h"
 #include "constants/battle.h"
 #include "constants/game_stats.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "field_system.h"
 #include "igt.h"
 #include "task.h"
diff --git a/arm9/src/event_data.c b/arm9/src/event_data.c
deleted file mode 100644
index 763905d79..000000000
--- a/arm9/src/event_data.c
+++ /dev/null
@@ -1,76 +0,0 @@
-#include "global.h"
-#include "save.h"
-#include "event_data.h"
-
-u8 UNK_021C5A14[8];
-
-u8 * GetFlagAddr(struct SaveVarsFlags * state, u16 flag_id);
-
-u32 Save_VarsFlags_sizeof(void)
-{
-    return sizeof(struct SaveVarsFlags);
-}
-
-void Save_VarsFlags_Init(struct SaveVarsFlags * state)
-{
-    memset(state, 0, sizeof(struct SaveVarsFlags));
-}
-
-struct SaveVarsFlags * Save_VarsFlags_Get(struct SaveData * save)
-{
-    return (struct SaveVarsFlags *)SaveArray_Get(save, 4);
-}
-
-BOOL CheckFlagInArray(struct SaveVarsFlags * state, u16 flag_id)
-{
-    u8 * ptr = GetFlagAddr(state, flag_id);
-    if (ptr != NULL)
-    {
-        int mask = 1 << (flag_id % 8);
-        if (*ptr & mask)
-            return TRUE;
-    }
-    return FALSE;
-}
-
-void SetFlagInArray(struct SaveVarsFlags * state, u16 flag_id)
-{
-    u8 * ptr = GetFlagAddr(state, flag_id);
-    if (ptr != NULL)
-    {
-        int mask = 1 << (flag_id % 8);
-        *ptr |= mask;
-    }
-}
-
-void ClearFlagInArray(struct SaveVarsFlags * state, u16 flag_id)
-{
-    u8 * ptr = GetFlagAddr(state, flag_id);
-    if (ptr != NULL)
-    {
-        int mask = 1 << (flag_id % 8);
-        *ptr &= 0xFF ^ mask;
-    }
-}
-
-u8 * GetFlagAddr(struct SaveVarsFlags * state, u16 flag_id)
-{
-    if (flag_id == 0)
-        return 0;
-    if (flag_id < 0x4000)
-    {
-        GF_ASSERT((flag_id / 8) < 364);
-        return &state->flags[flag_id / 8];
-    }
-    else
-    {
-        GF_ASSERT(((flag_id - 0x4000) / 8) < 8);
-        return &UNK_021C5A14[(flag_id - 0x4000) / 8];
-    }
-}
-
-u16 * GetVarAddr(struct SaveVarsFlags * state, u16 var_id)
-{
-    GF_ASSERT((var_id - 0x4000) < 288);
-    return &state->vars[var_id - 0x4000];
-}
diff --git a/arm9/src/save_arrays.c b/arm9/src/save_arrays.c
index 721c0faca..1cef02f49 100644
--- a/arm9/src/save_arrays.c
+++ b/arm9/src/save_arrays.c
@@ -3,7 +3,7 @@
 #include "player_data.h"
 #include "save.h"
 #include "party.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "pokemon_storage_system.h"
 #include "save_system_info.h"
 #include "poketch.h"
diff --git a/arm9/src/save_vars_flags.c b/arm9/src/save_vars_flags.c
new file mode 100644
index 000000000..c29dea921
--- /dev/null
+++ b/arm9/src/save_vars_flags.c
@@ -0,0 +1,59 @@
+#include "global.h"
+#include "save_vars_flags.h"
+
+static u8 sTempFlags[NUM_TEMP_FLAGS / 8] = {0};
+
+u32 Save_VarsFlags_sizeof(void) {
+    return sizeof(SaveVarsFlags);
+}
+
+void Save_VarsFlags_Init(SaveVarsFlags *varsFlags) {
+    memset(varsFlags, 0, sizeof(SaveVarsFlags));
+}
+
+SaveVarsFlags *Save_VarsFlags_Get(SaveData *save) {
+    return (SaveVarsFlags *)SaveArray_Get(save, SAVE_FLAGS);
+}
+
+BOOL Save_VarsFlags_CheckFlagInArray(SaveVarsFlags *varsFlags, u16 flagId) {
+    u8 *flagAddr = Save_VarsFlags_GetFlagAddr(varsFlags, flagId);
+    if (flagAddr != NULL) {
+        if (*flagAddr & (1 << (flagId % 8))) {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+void Save_VarsFlags_SetFlagInArray(SaveVarsFlags *varsFlags, u16 flagId) {
+    u8 *flagAddr = Save_VarsFlags_GetFlagAddr(varsFlags, flagId);
+    if (flagAddr == NULL) {
+        return;
+    }
+    *flagAddr |= 1 << (flagId % 8);
+}
+
+void Save_VarsFlags_ClearFlagInArray(SaveVarsFlags *varsFlags, u16 flagId) {
+    u8 *flagAddr = Save_VarsFlags_GetFlagAddr(varsFlags, flagId);
+    if (flagAddr == NULL) {
+        return;
+    }
+    *flagAddr &= 0xFF ^ (1 << (flagId % 8));
+}
+
+u8 *Save_VarsFlags_GetFlagAddr(SaveVarsFlags *varsFlags, u16 flagId) {
+    if (flagId == 0) {
+        return NULL;
+    } else if (flagId < TEMP_FLAG_BASE) {
+        GF_ASSERT((flagId / 8) < (NUM_FLAGS / 8));
+        return &varsFlags->flags[flagId / 8];
+    } else {
+        GF_ASSERT(((flagId - TEMP_FLAG_BASE) / 8) < (NUM_TEMP_FLAGS / 8));
+        return &sTempFlags[(flagId - TEMP_FLAG_BASE) / 8];
+    }
+}
+
+u16 *Save_VarsFlags_GetVarAddr(SaveVarsFlags * varsFlags, u16 varId) {
+    GF_ASSERT((varId - VAR_BASE) < NUM_VARS);
+    return &varsFlags->vars[varId - VAR_BASE];
+}
diff --git a/arm9/src/scrcmd_13.c b/arm9/src/scrcmd_13.c
index 5d91c5708..e989ce940 100644
--- a/arm9/src/scrcmd_13.c
+++ b/arm9/src/scrcmd_13.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "scrcmd.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "heap.h"
 #include "pokedex.h"
 #include "pokemon_storage_system.h"
diff --git a/arm9/src/scrcmd_amity_square.c b/arm9/src/scrcmd_amity_square.c
index d5f9d5fd1..daa66e25e 100644
--- a/arm9/src/scrcmd_amity_square.c
+++ b/arm9/src/scrcmd_amity_square.c
@@ -2,7 +2,7 @@
 #include "scrcmd.h"
 #include "constants/accessories.h"
 #include "constants/pokemon.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 
 extern void sub_0205F54C(struct SaveVarsFlags* state);
 extern u16 sub_0205F55C(struct SaveVarsFlags* state);
diff --git a/arm9/src/scrcmd_flags.c b/arm9/src/scrcmd_flags.c
index 864ff418e..6d8cd2f21 100644
--- a/arm9/src/scrcmd_flags.c
+++ b/arm9/src/scrcmd_flags.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "scrcmd.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "pokedex.h"
 
 extern void* sub_02034E20(void*);
diff --git a/arm9/src/scrcmd_names.c b/arm9/src/scrcmd_names.c
index 84f6bf4ff..8e4c24e50 100644
--- a/arm9/src/scrcmd_names.c
+++ b/arm9/src/scrcmd_names.c
@@ -1,5 +1,5 @@
 #include "global.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "itemtool.h"
 #include "message_format.h"
 #include "msgdata.h"
diff --git a/arm9/src/unk_0204B0A0.c b/arm9/src/unk_0204B0A0.c
index 635a50f16..21d5878d2 100644
--- a/arm9/src/unk_0204B0A0.c
+++ b/arm9/src/unk_0204B0A0.c
@@ -1,5 +1,5 @@
 #include "global.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "unk_02022504.h"
 #include "unk_0204B0A0.h"
 #include "unk_0205FA2C.h"
diff --git a/arm9/src/unk_0205EC84.c b/arm9/src/unk_0205EC84.c
index 2f1a650fd..fa9ee3062 100644
--- a/arm9/src/unk_0205EC84.c
+++ b/arm9/src/unk_0205EC84.c
@@ -7,17 +7,17 @@
 
 static void _flag_set(struct SaveVarsFlags * state, u16 flag_id)
 {
-    SetFlagInArray(state, flag_id);
+    Save_VarsFlags_SetFlagInArray(state, flag_id);
 }
 
 static void _flag_clear(struct SaveVarsFlags * state, u16 flag_id)
 {
-    ClearFlagInArray(state, flag_id);
+    Save_VarsFlags_ClearFlagInArray(state, flag_id);
 }
 
 static BOOL _flag_check(struct SaveVarsFlags * state, u16 flag_id)
 {
-    return CheckFlagInArray(state, flag_id);
+    return Save_VarsFlags_CheckFlagInArray(state, flag_id);
 }
 
 static BOOL _flag_op(struct SaveVarsFlags * state, u32 op, u32 flag_id)
diff --git a/arm9/src/unk_0206015C.c b/arm9/src/unk_0206015C.c
index c743e2a97..173f5df37 100644
--- a/arm9/src/unk_0206015C.c
+++ b/arm9/src/unk_0206015C.c
@@ -2,7 +2,7 @@
 #include "unk_0206015C.h"
 
 #include "constants/sndseq.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "heap.h"
 #include "main.h"
 #include "unk_020051F4.h"
diff --git a/arm9/src/unk_02085338.c b/arm9/src/unk_02085338.c
index 00b0866d7..853485322 100644
--- a/arm9/src/unk_02085338.c
+++ b/arm9/src/unk_02085338.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "heap.h"
-#include "event_data.h"
+#include "save_vars_flags.h"
 #include "unk_02085338.h"
 
 extern BOOL sub_0205ED0C(struct SaveVarsFlags * state);
diff --git a/include/constants/flags.h b/include/constants/flags.h
index 753bf6c8f..cc83bdd9c 100644
--- a/include/constants/flags.h
+++ b/include/constants/flags.h
@@ -3,4 +3,9 @@
 
 #define FLAG_SYS_SAFARI                                            0x967
 
+#define NUM_FLAGS                                                   2912
+
+#define NUM_TEMP_FLAGS                                                64
+#define TEMP_FLAG_BASE                                            0x4000
+
 #endif //POKEDIAMOND_CONSTANTS_FLAGS_H
\ No newline at end of file
diff --git a/include/constants/save_arrays.h b/include/constants/save_arrays.h
index a2f23d742..a16bba863 100644
--- a/include/constants/save_arrays.h
+++ b/include/constants/save_arrays.h
@@ -2,6 +2,7 @@
 #define POKEDIAMOND_CONSTANTS_SAVE_ARRAYS_H
 
 #define SAVE_BAG                  3
+#define SAVE_FLAGS                4
 #define SAVE_DAYCARE              8
 #define SAVE_SAFARI_ZONE         27
 #define SAVE_EASY_CHAT           34
diff --git a/include/constants/vars.h b/include/constants/vars.h
new file mode 100644
index 000000000..007e6c1c8
--- /dev/null
+++ b/include/constants/vars.h
@@ -0,0 +1,8 @@
+#ifndef POKEDIAMOND_CONSTANTS_VARS_H
+#define POKEDIAMOND_CONSTANTS_VARS_H
+
+#define VAR_BASE                        0x4000
+
+#define NUM_VARS                         0x120
+
+#endif //POKEDIAMOND_CONSTANTS_VARS_H
\ No newline at end of file
diff --git a/include/event_data.h b/include/event_data.h
deleted file mode 100644
index 242675a9a..000000000
--- a/include/event_data.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef GUARD_SAVE_VARS_FLAGS_H
-#define GUARD_SAVE_VARS_FLAGS_H
-
-#include "save.h"
-
-typedef struct SaveVarsFlags
-{
-    u16 vars[288];
-    u8 flags[364];
-} SaveVarsFlags;
-
-u32 Save_VarsFlags_sizeof(void);
-void Save_VarsFlags_Init(struct SaveVarsFlags * state);
-struct SaveVarsFlags * Save_VarsFlags_Get(struct SaveData * save);
-BOOL CheckFlagInArray(struct SaveVarsFlags * state, u16 flag_id);
-void SetFlagInArray(struct SaveVarsFlags * state, u16 flag_id);
-void ClearFlagInArray(struct SaveVarsFlags * state, u16 flag_id);
-u8 * GetFlagAddr(struct SaveVarsFlags * state, u16 flag_id);
-u16 * GetVarAddr(struct SaveVarsFlags * state, u16 var_id);
-
-#endif //GUARD_SAVE_VARS_FLAGS_H
diff --git a/include/save_vars_flags.h b/include/save_vars_flags.h
new file mode 100644
index 000000000..72843ea6b
--- /dev/null
+++ b/include/save_vars_flags.h
@@ -0,0 +1,22 @@
+#ifndef POKEDIAMOND_SAVE_VARS_FLAGS_H
+#define POKEDIAMOND_SAVE_VARS_FLAGS_H
+
+#include "save.h"
+#include "constants/flags.h"
+#include "constants/vars.h"
+
+typedef struct SaveVarsFlags {
+    u16 vars[NUM_VARS];
+    u8 flags[NUM_FLAGS / 8];
+} SaveVarsFlags;
+
+u32 Save_VarsFlags_sizeof(void);
+void Save_VarsFlags_Init(SaveVarsFlags *varsFlags);
+SaveVarsFlags *Save_VarsFlags_Get(SaveData *saveData);
+BOOL Save_VarsFlags_CheckFlagInArray(SaveVarsFlags *varsFlags, u16 flagId);
+void Save_VarsFlags_SetFlagInArray(SaveVarsFlags *varsFlags, u16 flagId);
+void Save_VarsFlags_ClearFlagInArray(SaveVarsFlags *varsFlags, u16 flagId);
+u8 *Save_VarsFlags_GetFlagAddr(SaveVarsFlags *varsFlags, u16 flagId);
+u16 *Save_VarsFlags_GetVarAddr(SaveVarsFlags *varsFlags, u16 varId);
+
+#endif //POKEDIAMOND_SAVE_VARS_FLAGS_H
diff --git a/include/unk_0205EC84.h b/include/unk_0205EC84.h
index 612692b00..02dbec397 100644
--- a/include/unk_0205EC84.h
+++ b/include/unk_0205EC84.h
@@ -1,7 +1,7 @@
 #ifndef POKEDIAMOND_UNK_0205EC84_H
 #define POKEDIAMOND_UNK_0205EC84_H
 
-#include "event_data.h"
+#include "save_vars_flags.h"
 
 void sub_0205ECD4(struct SaveVarsFlags * state);
 BOOL sub_0205ECE0(struct SaveVarsFlags * state);