diff --git a/arm9/arm9.lsf b/arm9/arm9.lsf
index 42b8cd0fb..5ada5dd59 100644
--- a/arm9/arm9.lsf
+++ b/arm9/arm9.lsf
@@ -310,7 +310,7 @@ Static arm9
 	Object unk_0208898C.o
 	Object unk_02088AAC.o
 	Object unk_02088D1C.o
-	Object unk_02088DD8.o
+	Object move_relearner.o
 	Object unk_02088F0C.o
 	Object unk_020893E0.o
 	Object unk_02089498.o
diff --git a/arm9/global.inc b/arm9/global.inc
index 8877fb44e..58a1d9663 100644
--- a/arm9/global.inc
+++ b/arm9/global.inc
@@ -4815,7 +4815,7 @@
 .extern Pokemon_UpdateArceusForm
 .extern BoxMon_UpdateArceusForm
 .extern GetArceusTypeByHeldItemEffect
-.extern LoadWotbl_HandleAlternateForm
+.extern LoadLevelUpLearnset_HandleAlternateForm
 .extern sub_02069FB0
 .extern sub_0206A014
 .extern sub_0206A094
@@ -5448,10 +5448,10 @@
 .extern sub_02088D84
 .extern sub_02088DA0
 .extern sub_02088DBC
-.extern sub_02088DD8
-.extern sub_02088DF0
-.extern GetEligibleLevelUpMoves
-.extern sub_02088EF8
+.extern MoveRelearner_New
+.extern MoveRelearner_Delete
+.extern MoveRelearner_GetEligibleLevelUpMoves
+.extern MoveRelearner_IsValidMove
 .extern sub_02088F0C
 .extern sub_02088F4C
 .extern sub_020892C4
diff --git a/arm9/src/move_relearner.c b/arm9/src/move_relearner.c
new file mode 100644
index 000000000..bf16c256c
--- /dev/null
+++ b/arm9/src/move_relearner.c
@@ -0,0 +1,62 @@
+#include "global.h"
+#include "move_relearner.h"
+#include "pokemon.h"
+
+MoveRelearner *MoveRelearner_New(HeapID heapId) {
+    MoveRelearner *ret = AllocFromHeap(heapId, sizeof(MoveRelearner));
+    memset(ret, 0, sizeof(MoveRelearner));
+    return ret;
+}
+
+void MoveRelearner_Delete(MoveRelearner *moveRelearner) {
+    FreeToHeap(moveRelearner);
+}
+
+u16 *MoveRelearner_GetEligibleLevelUpMoves(Pokemon* mon, HeapID heapId) {
+    u16 species = GetMonData(mon, MON_DATA_SPECIES, NULL);
+    u8 form = GetMonData(mon, MON_DATA_FORM, NULL);
+    u8 level = GetMonData(mon, MON_DATA_LEVEL, NULL);
+    u16 moves[MAX_MON_MOVES];
+
+    for (u8 i = 0; i < MAX_MON_MOVES; ++i) {
+        moves[i] = GetMonData(mon, MON_DATA_MOVE1 + i, NULL);
+    }
+
+    u16 *tableFromFile = AllocFromHeap(heapId, LEVEL_UP_LEARNSET_MAX * 2);
+    u16 *returnTable = AllocFromHeap(heapId, LEVEL_UP_LEARNSET_MAX * 2);
+
+    LoadLevelUpLearnset_HandleAlternateForm(species, form, tableFromFile);
+
+    for (u8 i = 0, j, k = 0; i < LEVEL_UP_LEARNSET_MAX; i++) {
+        if (tableFromFile[i] == LEVEL_UP_LEARNSET_END) {
+            returnTable[k] = LEVEL_UP_LEARNSET_END;
+            break;
+        } else if (LEVEL_UP_LEARNSET_LVL(tableFromFile[i]) > level) {
+            continue;
+        } else {
+            tableFromFile[i] = LEVEL_UP_LEARNSET_MOVE(tableFromFile[i]);
+            for (j = 0; j < MAX_MON_MOVES; j++) {
+                if (tableFromFile[i] == moves[j]) {
+                    break;
+                }
+            }
+            if (j == MAX_MON_MOVES) {
+                for (j = 0; j < k; j++) {
+                    if (returnTable[j] == tableFromFile[i]) {
+                        break;
+                    }
+                }
+                if (j == k) {
+                    returnTable[k] = tableFromFile[i];
+                    k++;
+                }
+            }
+        }
+    }
+    FreeToHeap(tableFromFile);
+    return returnTable;
+}
+
+BOOL MoveRelearner_IsValidMove(const u16 *ptr) {
+    return *ptr != LEVEL_UP_LEARNSET_END;
+}
diff --git a/arm9/src/pokemon.c b/arm9/src/pokemon.c
index 750aeb69e..e072a5321 100644
--- a/arm9/src/pokemon.c
+++ b/arm9/src/pokemon.c
@@ -43,7 +43,7 @@ u8 Party_MaskMonsWithPokerus(struct Party * party_p, u8 mask);
 BOOL BoxMon_HasPokerus(struct BoxPokemon * boxmon);
 BOOL BoxMon_IsImmuneToPokerus(struct BoxPokemon * boxmon);
 void BoxMon_UpdateArceusForm(struct BoxPokemon * boxmon);
-void LoadWotbl_HandleAlternateForm(int species, int form, u16 * wotbl);
+void LoadLevelUpLearnset_HandleAlternateForm(int species, int form, u16 *levelUpLearnset);
 void sub_0206A054(struct BoxPokemon *  boxmon, PlayerProfile * a1, u32 pokeball, u32 a3, u32 encounterType, HeapID heapId);
 BOOL MonHasMove(struct Pokemon * pokemon, u16 move);
 BOOL sub_0206A144(struct BoxPokemon * boxmon, u32 a1);
@@ -2778,38 +2778,30 @@ u16 GetEggSpecies(u16 species)
     }
 }
 
-#define WOTBL_END           0xFFFF
-#define WOTBL_MOVE_MASK     0x01FF
-#define WOTBL_MOVE_SHIFT         0
-#define WOTBL_LVL_MASK      0xFE00
-#define WOTBL_LVL_SHIFT          9
-#define WOTBL_MOVE(x) ((u16)(((x) & WOTBL_MOVE_MASK) >> WOTBL_MOVE_SHIFT))
-#define WOTBL_LVL(x) ((u8)(((x) & WOTBL_LVL_MASK) >> WOTBL_LVL_SHIFT))
-
 void InitBoxMonMoveset(struct BoxPokemon * boxmon)
 {
     BOOL decry;
-    u16 * wotbl;
+    u16 *levelUpLearnset;
     int i;
     u16 species;
     u32 form;
     u8 level;
     u16 move;
-    wotbl = AllocFromHeap(HEAP_ID_DEFAULT, 22 * sizeof(u16));
+    levelUpLearnset = AllocFromHeap(HEAP_ID_DEFAULT, MAX_LEARNED_MOVES * sizeof(u16));
     decry = AcquireBoxMonLock(boxmon);
     species = (u16)GetBoxMonData(boxmon, MON_DATA_SPECIES, NULL);
     form = GetBoxMonData(boxmon, MON_DATA_FORM, NULL);
     level = (u8)CalcBoxMonLevel(boxmon);
-    LoadWotbl_HandleAlternateForm(species, (int)form, wotbl);
-    for (i = 0; wotbl[i] != WOTBL_END; i++)
+    LoadLevelUpLearnset_HandleAlternateForm(species, (int)form, levelUpLearnset);
+    for (i = 0; levelUpLearnset[i] != LEVEL_UP_LEARNSET_END; i++)
     {
-        if ((wotbl[i] & WOTBL_LVL_MASK) > (level << WOTBL_LVL_SHIFT))
+        if ((levelUpLearnset[i] & LEVEL_UP_LEARNSET_LEVEL_MASK) > (level << LEVEL_UP_LEARNSET_LEVEL_SHIFT))
             break;
-        move = WOTBL_MOVE(wotbl[i]);
+        move = LEVEL_UP_LEARNSET_MOVE(levelUpLearnset[i]);
         if (sub_020696A8(boxmon, move) == 0xFFFF)
             sub_02069718(boxmon, move);
     }
-    FreeToHeap(wotbl);
+    FreeToHeap(levelUpLearnset);
     ReleaseBoxMonLock(boxmon, decry);
 }
 
@@ -2896,34 +2888,34 @@ void BoxMonSetMoveInSlot(struct BoxPokemon * boxmon, u16 move, u8 slot)
 u32 sub_02069818(struct Pokemon * pokemon, u32 * r5, u16 * sp0)
 {
     u32 ret = 0;
-    u16 * wotbl = AllocFromHeap(HEAP_ID_DEFAULT, 22 * sizeof(u16));
+    u16 *levelUpLearnset = AllocFromHeap(HEAP_ID_DEFAULT, MAX_LEARNED_MOVES * sizeof(u16));
     u16 species = (u16)GetMonData(pokemon, MON_DATA_SPECIES, NULL);
     u32 form = GetMonData(pokemon, MON_DATA_FORM, NULL);
     u8 level = (u8)GetMonData(pokemon, MON_DATA_LEVEL, NULL);
-    LoadWotbl_HandleAlternateForm(species, (int)form, wotbl);
+    LoadLevelUpLearnset_HandleAlternateForm(species, (int)form, levelUpLearnset);
 
 
-    if (wotbl[*r5] == 0xFFFF)
+    if (levelUpLearnset[*r5] == 0xFFFF)
     {
-        FreeToHeap(wotbl);
+        FreeToHeap(levelUpLearnset);
         return 0;
     }
-    while ((wotbl[*r5] & WOTBL_LVL_MASK) != (level << WOTBL_LVL_SHIFT))
+    while ((levelUpLearnset[*r5] & LEVEL_UP_LEARNSET_LEVEL_MASK) != (level << LEVEL_UP_LEARNSET_LEVEL_SHIFT))
     {
         (*r5)++;
-        if (wotbl[*r5] == 0xFFFF)
+        if (levelUpLearnset[*r5] == 0xFFFF)
         {
-            FreeToHeap(wotbl);
+            FreeToHeap(levelUpLearnset);
             return 0;
         }
     }
-    if ((wotbl[*r5] & WOTBL_LVL_MASK) == (level << WOTBL_LVL_SHIFT))
+    if ((levelUpLearnset[*r5] & LEVEL_UP_LEARNSET_LEVEL_MASK) == (level << LEVEL_UP_LEARNSET_LEVEL_SHIFT))
     {
-        *sp0 = WOTBL_MOVE(wotbl[*r5]);
+        *sp0 = LEVEL_UP_LEARNSET_MOVE(levelUpLearnset[*r5]);
         (*r5)++;
         ret = sub_02069698(pokemon, *sp0);
     }
-    FreeToHeap(wotbl);
+    FreeToHeap(levelUpLearnset);
     return ret;
 }
 
@@ -3078,13 +3070,13 @@ s8 GetFlavorPreferenceFromPID(u32 personality, int flavor)
 int Species_LoadLearnsetTable(u16 species, u32 form, u16 * dest)
 {
     int i;
-    u16 * wotbl = AllocFromHeap(HEAP_ID_DEFAULT, 22 * sizeof(u16));
-    LoadWotbl_HandleAlternateForm(species, (int)form, wotbl);
-    for (i = 0; wotbl[i] != WOTBL_END; i++)
+    u16 * levelUpLearnset = AllocFromHeap(HEAP_ID_DEFAULT, MAX_LEARNED_MOVES * sizeof(u16));
+    LoadLevelUpLearnset_HandleAlternateForm(species, (int)form, levelUpLearnset);
+    for (i = 0; levelUpLearnset[i] != LEVEL_UP_LEARNSET_END; i++)
     {
-        dest[i] = WOTBL_MOVE(wotbl[i]);
+        dest[i] = LEVEL_UP_LEARNSET_MOVE(levelUpLearnset[i]);
     }
-    FreeToHeap(wotbl);
+    FreeToHeap(levelUpLearnset);
     return i;
 }
 
@@ -3298,9 +3290,9 @@ u32 GetArceusTypeByHeldItemEffect(u16 heldEffect)
     }
 }
 
-void LoadWotbl_HandleAlternateForm(int species, int form, u16 * wotbl)
+void LoadLevelUpLearnset_HandleAlternateForm(int species, int form, u16 *levelUpLearnset)
 {
-    ReadWholeNarcMemberByIdPair(wotbl, NARC_POKETOOL_PERSONAL_WOTBL, ResolveMonForm(species, form));
+    ReadWholeNarcMemberByIdPair(levelUpLearnset, NARC_POKETOOL_PERSONAL_WOTBL, ResolveMonForm(species, form));
 }
 
 void sub_02069FB0(struct SaveChatotSoundClip *r7, u32 r5, u16 r4, s32 r6, s32 sp18, u32 sp1C, HeapID heapId)
diff --git a/arm9/src/scrcmd_move_relearner.c b/arm9/src/scrcmd_move_relearner.c
index d69eba821..53c4a63aa 100644
--- a/arm9/src/scrcmd_move_relearner.c
+++ b/arm9/src/scrcmd_move_relearner.c
@@ -3,7 +3,7 @@
 #include "heap.h"
 #include "party.h"
 #include "unk_020377F0.h"
-#include "unk_02088DD8.h"
+#include "move_relearner.h"
 
 extern void* FieldSysGetAttrAddr(struct FieldSystem*, int idx);
 
@@ -48,9 +48,9 @@ BOOL ScrCmd_Unk021F(struct ScriptContext* ctx) { //021F
     u16 mon_idx = ScriptGetVar(ctx);
     struct Party* party = SaveArray_Party_Get(ctx->fieldSystem->saveData);
     struct Pokemon* pokemon = Party_GetMonByIndex(party, mon_idx);
-    u16 *eligibleMoves = GetEligibleLevelUpMoves(pokemon, HEAP_ID_32);
+    u16 *eligibleMoves = MoveRelearner_GetEligibleLevelUpMoves(pokemon, HEAP_ID_32);
 
-    *ret_ptr = (u16)sub_02088EF8(eligibleMoves);
+    *ret_ptr = (u16)MoveRelearner_IsValidMove(eligibleMoves);
     FreeToHeap(eligibleMoves);
 
     return FALSE;
@@ -58,13 +58,13 @@ BOOL ScrCmd_Unk021F(struct ScriptContext* ctx) { //021F
 
 void sub_02045E74(struct ScriptContext* ctx, u8 a1, struct Pokemon* pokemon, u16 *eligibleMoves) {
     MoveRelearner **moveRelearnerPtr = FieldSysGetAttrAddr(ctx->fieldSystem, SCRIPTENV_RUNNING_APP_DATA);
-    MoveRelearner *moveRelearner = sub_02088DD8(HEAP_ID_32);
+    MoveRelearner *moveRelearner = MoveRelearner_New(HEAP_ID_32);
     *moveRelearnerPtr = moveRelearner;
 
-    moveRelearner->pokemon = pokemon;
+    moveRelearner->mon = pokemon;
 
     struct SaveData* save = FieldSystem_GetSaveData(ctx->fieldSystem);
-    moveRelearner->player = Save_PlayerData_GetProfileAddr(save);
+    moveRelearner->profile = Save_PlayerData_GetProfileAddr(save);
 
     moveRelearner->options = Save_PlayerData_GetOptionsAddr(ctx->fieldSystem->saveData);
     moveRelearner->eligibleMoves = eligibleMoves;
@@ -86,7 +86,7 @@ BOOL ScrCmd_Unk0221(struct ScriptContext* ctx) //0221 - todo: RememberMove?
     u16 mon_idx = ScriptGetVar(ctx);
     struct Party* party = SaveArray_Party_Get(ctx->fieldSystem->saveData);
     struct Pokemon* pokemon = Party_GetMonByIndex(party, mon_idx);
-    u16 *eligibleMoves  = GetEligibleLevelUpMoves(pokemon, HEAP_ID_32);
+    u16 *eligibleMoves  = MoveRelearner_GetEligibleLevelUpMoves(pokemon, HEAP_ID_32);
 
     sub_02045E74(ctx, 1, pokemon, eligibleMoves);
     return TRUE;
@@ -130,7 +130,7 @@ BOOL ScrCmd_Unk0223(struct ScriptContext* ctx) //0223 - todo: RememberMoveRespon
         *ret_ptr = 0xFF;
     }
 
-    sub_02088DF0(moveRelearner);
+    MoveRelearner_Delete(moveRelearner);
     return FALSE;
 }
 
@@ -151,6 +151,6 @@ BOOL ScrCmd_Unk0225(struct ScriptContext* ctx) //0225 - todo: TeachMoveResponse?
         *ret_ptr = 0xFF;
     }
 
-    sub_02088DF0(moveRelearner);
+    MoveRelearner_Delete(moveRelearner);
     return FALSE;
 }
diff --git a/arm9/src/unk_02088DD8.c b/arm9/src/unk_02088DD8.c
deleted file mode 100644
index 9b2495be3..000000000
--- a/arm9/src/unk_02088DD8.c
+++ /dev/null
@@ -1,76 +0,0 @@
-#include "global.h"
-#include "heap.h"
-#include "pokemon.h"
-#include "unk_02088DD8.h"
-
-extern void LoadWotbl_HandleAlternateForm(int species, int form, u16 * wotbl);
-
-MoveRelearner *sub_02088DD8(HeapID heapId) {
-    MoveRelearner *returnPointer = AllocFromHeap(heapId, sizeof(MoveRelearner));
-    memset(returnPointer, 0, sizeof(MoveRelearner));
-    return returnPointer;
-}
-
-void sub_02088DF0(MoveRelearner *moveRelearner) {
-    FreeToHeap(moveRelearner);
-}
-
-#define WOTBL_END           0xFFFF
-#define WOTBL_MOVE_MASK     0x01FF
-#define WOTBL_MOVE_SHIFT         0
-#define WOTBL_LVL_MASK      0xFE00
-#define WOTBL_LVL_SHIFT          9
-#define WOTBL_MOVE(x) ((u16)(((x) & WOTBL_MOVE_MASK) >> WOTBL_MOVE_SHIFT))
-#define WOTBL_LVL(x) (/*(u8)*/(((x) & WOTBL_LVL_MASK) >> WOTBL_LVL_SHIFT))
-// i don't know why either.
-
-u16* GetEligibleLevelUpMoves(struct Pokemon* pokemon, HeapID heapId) {
-    u16 species = (u16)GetMonData(pokemon, MON_DATA_SPECIES, 0);
-    u8 form = (u8)GetMonData(pokemon, MON_DATA_FORM, 0);
-    u8 level = (u8)GetMonData(pokemon, MON_DATA_LEVEL, 0);
-    u16 moves[4];
-
-    for (u8 i = 0; i < 4; ++i) {
-        moves[i] = (u16)GetMonData(pokemon, MON_DATA_MOVE1 + i, 0);
-    }
-
-    u16 *tableFromFile = AllocFromHeap(heapId, 44);
-    u16 *returnTable = AllocFromHeap(heapId, 44);
-
-    LoadWotbl_HandleAlternateForm(species, form, tableFromFile);
-
-    for (u8 i = 0, j, k = 0; i < 22; i++) {
-        if (tableFromFile[i] == WOTBL_END) {
-            returnTable[k] = WOTBL_END;
-            break;
-        }
-        else {
-            if (WOTBL_LVL(tableFromFile[i]) > level) continue;
-
-            tableFromFile[i] = WOTBL_MOVE(tableFromFile[i]);
-            
-            for (j = 0; j < 4; j++) {
-                if (tableFromFile[i] == moves[j]) break;
-            }
-            if (j != 4) continue;
-
-            if (k >= 0) {
-                // don't know when that would be false
-                for (j = 0; j < k; j++) {
-                    if (returnTable[j] == tableFromFile[i]) break;
-                }
-            }
-            if (j != k) continue;
-
-            returnTable[k] = tableFromFile[i];
-            k++;
-        }
-    }
-
-    FreeToHeap(tableFromFile);
-    return returnTable;
-}
-
-BOOL sub_02088EF8(u16 *r0) {
-    return *r0 != 0xFFFF;
-}
diff --git a/arm9/src/use_item_on_mon.c b/arm9/src/use_item_on_mon.c
index f72adeb4d..efc04720f 100644
--- a/arm9/src/use_item_on_mon.c
+++ b/arm9/src/use_item_on_mon.c
@@ -96,7 +96,7 @@ BOOL CanUseItemOnPokemon(struct Pokemon * pokemon, u16 itemId, s32 moveId, HeapI
     }
     if (GetItemAttr_PreloadedItemData(itemData, ITEMATTR_PP_RESTORE_ALL))
     {
-        for (int i = 0; i < MON_MOVES; i++)
+        for (int i = 0; i < MAX_MON_MOVES; i++)
         {
             if (MonMoveCanRestorePP(pokemon, i) == TRUE)
             {
@@ -388,7 +388,7 @@ BOOL UseItemOnPokemon(struct Pokemon * pokemon, u16 itemId, s32 moveIdx, u16 loc
     else if (GetItemAttr_PreloadedItemData(itemData, ITEMATTR_PP_RESTORE_ALL))
     {
         sp50 = 0;
-        for (; sp50 < MON_MOVES; sp50++)
+        for (; sp50 < MAX_MON_MOVES; sp50++)
         {
             if (MonMoveRestorePP(pokemon, sp50, (s32)GetItemAttr_PreloadedItemData(itemData, ITEMATTR_PP_RESTORE_PARAM)) == 1)
                 hadEffect = TRUE;
@@ -707,7 +707,7 @@ void HealParty(struct Party * party)
             sp8 = 0;
             SetMonData(pokemon, MON_DATA_STATUS, &sp8);
 
-            for (j = 0; j < MON_MOVES; j++)
+            for (j = 0; j < MAX_MON_MOVES; j++)
             {
                 if (MonMoveCanRestorePP(pokemon, j) == 1)
                     MonMoveRestorePP(pokemon, j, PP_RESTORE_ALL);
diff --git a/include/constants/pokemon.h b/include/constants/pokemon.h
index 944b245e6..d94e793f0 100644
--- a/include/constants/pokemon.h
+++ b/include/constants/pokemon.h
@@ -2,10 +2,11 @@
 #define POKEDIAMOND_CONSTANTS_POKEMON_H
 
 // Value and data limits
-#define MAX_LEVEL     100
-#define MON_MOVES       4
-#define MAX_EV        100
-#define MAX_EV_SUM    510
+#define MAX_LEVEL            100
+#define MAX_MON_MOVES          4
+#define MAX_EV               100
+#define MAX_EV_SUM           510
+#define MAX_LEARNED_MOVES     22
 
 // Pokemon types
 #define TYPE_NONE             255
diff --git a/include/move_relearner.h b/include/move_relearner.h
new file mode 100644
index 000000000..c36f371d4
--- /dev/null
+++ b/include/move_relearner.h
@@ -0,0 +1,23 @@
+#ifndef POKEDIAMOND_MOVE_RELEARNER_H
+#define POKEDIAMOND_MOVE_RELEARNER_H
+
+#include "player_data.h"
+#include "pokemon.h"
+
+typedef struct MoveRelearner {
+    Pokemon *mon;
+    PlayerProfile *profile;
+    Options *options;
+    u16 *eligibleMoves;
+    u8 padding[0x5];
+    u8 unk15;
+    u8 unk16;
+    u8 padding2[1];
+} MoveRelearner;
+
+MoveRelearner *MoveRelearner_New(HeapID heapId);
+void MoveRelearner_Delete(MoveRelearner *moveRelearner);
+u16 *MoveRelearner_GetEligibleLevelUpMoves(Pokemon *mon, HeapID heapId);
+BOOL MoveRelearner_IsValidMove(const u16 *ptr);
+
+#endif //POKEDIAMOND_MOVE_RELEARNER_H
diff --git a/include/options.h b/include/options.h
index 667afaf9b..7f06ef806 100644
--- a/include/options.h
+++ b/include/options.h
@@ -5,14 +5,14 @@
 
 struct SaveData;
 
-struct Options {
+typedef struct Options {
     u16 textSpeed:4;
     u16 soundMethod:2;
     u16 battleStyle:1;
     u16 battleScene:1;
     u16 buttonMode:2;
     u16 frame:5;
-};
+} Options;
 
 struct Options * Options_New(HeapID heapId);
 void Options_Copy(struct Options * src, struct Options * dest);
diff --git a/include/pokemon.h b/include/pokemon.h
index 39e6df22f..74c5037b1 100644
--- a/include/pokemon.h
+++ b/include/pokemon.h
@@ -12,6 +12,17 @@
 #include "player_data.h"
 #include "sound_chatot.h"
 
+#define LEVEL_UP_LEARNSET_END             0xFFFF
+#define LEVEL_UP_LEARNSET_MAX                 22
+
+#define LEVEL_UP_LEARNSET_MOVEID_MASK     0x01FF
+#define LEVEL_UP_LEARNSET_MOVEID_SHIFT         0
+#define LEVEL_UP_LEARNSET_LEVEL_MASK      0xFE00
+#define LEVEL_UP_LEARNSET_LEVEL_SHIFT          9
+
+#define LEVEL_UP_LEARNSET_MOVE(x) ((u16)(((x) & LEVEL_UP_LEARNSET_MOVEID_MASK) >> LEVEL_UP_LEARNSET_MOVEID_SHIFT))
+#define LEVEL_UP_LEARNSET_LVL(x) (((x) & LEVEL_UP_LEARNSET_LEVEL_MASK) >> LEVEL_UP_LEARNSET_LEVEL_SHIFT)
+
 struct BaseStats {
     /* 0x00 */ u8 hp;
     /* 0x01 */ u8 atk;
@@ -266,6 +277,7 @@ u32 sub_020690C4(void);
 u32 sub_020690C8(void);
 u8 GetBoxMonUnownLetter(struct BoxPokemon * boxmon);
 u8 GetMonUnownLetter(struct Pokemon * pokemon);
+void LoadLevelUpLearnset_HandleAlternateForm(int species, int form, u16 *levelUpLearnset);
 struct BoxPokemon * sub_020690E4(struct Pokemon * pokemon);
 
 u16 GetMonEvolution(struct Party * party, struct Pokemon * pokemon, u32 context, u32 usedItem, u32 * method_ret);
diff --git a/include/trainer_data.h b/include/trainer_data.h
index 2885fe13c..70abab9d1 100644
--- a/include/trainer_data.h
+++ b/include/trainer_data.h
@@ -19,7 +19,7 @@ struct TrainerMonSpeciesMoves
     u16 difficulty;
     u16 level;
     u16 species;
-    u16 moves[MON_MOVES];
+    u16 moves[MAX_MON_MOVES];
 };
 
 struct TrainerMonSpeciesItem
@@ -36,7 +36,7 @@ struct TrainerMonSpeciesItemMoves
     u16 level;
     u16 species;
     u16 item;
-    u16 moves[MON_MOVES];
+    u16 moves[MAX_MON_MOVES];
 };
 
 union TrainerMon
diff --git a/include/unk_02088DD8.h b/include/unk_02088DD8.h
deleted file mode 100644
index 624c3775e..000000000
--- a/include/unk_02088DD8.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef POKEDIAMOND_UNK_02088DD8_H
-#define POKEDIAMOND_UNK_02088DD8_H
-
-#include "unk_020377F0.h"
-#include "player_data.h"
-
-struct Options;
-struct Pokemon;
-
-typedef struct MoveRelearner
-{
-    struct Pokemon* pokemon;
-    PlayerProfile* player;
-    struct Options* options;
-    u16 *eligibleMoves;
-    u8 padding[0x5];
-    u8 unk15;
-    u8 unk16;
-    u8 padding2[1];
-} MoveRelearner;
-
-MoveRelearner *sub_02088DD8(HeapID heapId);
-void sub_02088DF0(MoveRelearner *moveRelearner);
-u16* GetEligibleLevelUpMoves(struct Pokemon* pokemon, HeapID heapId);
-BOOL sub_02088EF8(u16 *r0);
-
-#endif