diff --git a/include/battle_controllers.h b/include/battle_controllers.h
index cc5f4809fd..a338e8707a 100644
--- a/include/battle_controllers.h
+++ b/include/battle_controllers.h
@@ -275,10 +275,6 @@ void BtlController_HandleHealthBarUpdate(u32 battler, bool32 updateHpText);
 void DoStatusIconUpdate(u32 battler);
 void BtlController_HandleStatusIconUpdate(u32 battler);
 void BtlController_HandleStatusAnimation(u32 battler);
-void BtlController_HandleClearUnkVar(u32 battler);
-void BtlController_HandleSetUnkVar(u32 battler);
-void BtlController_HandleClearUnkFlag(u32 battler);
-void BtlController_HandleToggleUnkFlag(u32 battler);
 void BtlController_HandleHitAnimation(u32 battler);
 void BtlController_HandlePlaySE(u32 battler);
 void BtlController_HandlePlayFanfareOrBGM(u32 battler);
diff --git a/include/battle_dynamax.h b/include/battle_dynamax.h
index 0762601c89..ed295bb1e6 100644
--- a/include/battle_dynamax.h
+++ b/include/battle_dynamax.h
@@ -20,8 +20,6 @@ void ChooseDamageNonTypesString(u8 type);
 
 void BS_UpdateDynamax(void);
 void BS_SetSteelsurge(void);
-void BS_TrySetStatus1(void);
-void BS_TrySetStatus2(void);
 void BS_HealOneSixth(void);
 void BS_TryRecycleBerry(void);
 void BS_JumpIfDynamaxed(void);
diff --git a/include/battle_gimmick.h b/include/battle_gimmick.h
index d0e975462a..42b8c7255a 100644
--- a/include/battle_gimmick.h
+++ b/include/battle_gimmick.h
@@ -39,7 +39,6 @@ void HideGimmickTriggerSprite(void);
 void DestroyGimmickTriggerSprite(void);
 
 void LoadIndicatorSpritesGfx(void);
-u32 GetIndicatorTileTag(u32 battler);
 u32 GetIndicatorPalTag(u32 battler);
 void UpdateIndicatorVisibilityAndType(u32 healthboxId, bool32 invisible);
 void UpdateIndicatorOamPriority(u32 healthboxId, u32 oamPriority);
diff --git a/include/berry.h b/include/berry.h
index ba1bbb1d12..311207989c 100644
--- a/include/berry.h
+++ b/include/berry.h
@@ -16,7 +16,6 @@ u8 GetBerryTypeByBerryTreeId(u8 id);
 u8 GetStageByBerryTreeId(u8);
 u8 ItemIdToBerryType(u16 item);
 void GetBerryNameByBerryType(u8 berry, u8 *string);
-void ResetBerryTreeSparkleFlag(u8 id);
 void Bag_ChooseBerry(void);
 void Bag_ChooseMulch(void);
 void ObjectEventInteractionGetBerryTreeData(void);
diff --git a/include/field_control_avatar.h b/include/field_control_avatar.h
index 9a55f9e7bf..11c0f1c17d 100644
--- a/include/field_control_avatar.h
+++ b/include/field_control_avatar.h
@@ -25,7 +25,6 @@ struct FieldInput
 void FieldClearPlayerInput(struct FieldInput *pStruct);
 void FieldGetPlayerInput(struct FieldInput *pStruct, u16 keys, u16 heldKeys);
 int ProcessPlayerFieldInput(struct FieldInput *pStruct);
-void overworld_poison_timer_set(void);
 void RestartWildEncounterImmunitySteps(void);
 const u8 *GetObjectEventScriptPointerPlayerFacing(void);
 bool8 TryDoDiveWarp(struct MapPosition *position, u16 b);
diff --git a/include/field_effect.h b/include/field_effect.h
index 3db86bc219..1e28be75f1 100644
--- a/include/field_effect.h
+++ b/include/field_effect.h
@@ -49,6 +49,5 @@ void FreeResourcesAndDestroySprite(struct Sprite *sprite, u8 spriteId);
 u8 CreateMonSprite_PicBox(u16 species, s16 x, s16 y, u8 subpriority);
 void StartEscapeRopeFieldEffect(void);
 void FieldEffectFreeGraphicsResources(struct Sprite *sprite);
-void FieldEff_CaveDust(void);
 
 #endif // GUARD_FIELD_EFFECTS_H
diff --git a/include/palette.h b/include/palette.h
index 68b57dc54a..d58bfeb60c 100644
--- a/include/palette.h
+++ b/include/palette.h
@@ -95,7 +95,6 @@ u32 UpdatePaletteFade(void);
 void ResetPaletteFade(void);
 bool32 BeginNormalPaletteFade(u32 selectedPalettes, s8 delay, u8 startY, u8 targetY, u32 blendColor);
 bool32 BeginTimeOfDayPaletteFade(u32 selectedPalettes, s8 delay, u8 startY, u8 targetY, struct BlendSettings *bld0, struct BlendSettings *bld1, u32 weight, u32 color);
-void PaletteStruct_ResetById(u32 id);
 void ResetPaletteFadeControl(void);
 void InvertPlttBuffer(u32 selectedPalettes);
 void TintPlttBuffer(u32 selectedPalettes, s8 r, s8 g, s8 b);
@@ -117,12 +116,12 @@ void TintPalette_CustomTone(u16 *palette, u32 count, u16 rTone, u16 gTone, u16 b
 
 static inline void SetBackdropFromColor(u32 color)
 {
-  FillPalette(color, 0, PLTT_SIZEOF(1));
+    FillPalette(color, 0, PLTT_SIZEOF(1));
 }
 
 static inline void SetBackdropFromPalette(const u16 *palette)
 {
-  LoadPalette(palette, 0, PLTT_SIZEOF(1));
+    LoadPalette(palette, 0, PLTT_SIZEOF(1));
 }
 
 #endif // GUARD_PALETTE_H
diff --git a/include/sprite.h b/include/sprite.h
index 71e344e9a5..ccf0424c0a 100644
--- a/include/sprite.h
+++ b/include/sprite.h
@@ -300,16 +300,10 @@ u16 LoadSpriteSheet(const struct SpriteSheet *sheet);
 u16 LoadSpriteSheetByTemplate(const struct SpriteTemplate *template, u32 frame, s32 offset);
 void LoadSpriteSheets(const struct SpriteSheet *sheets);
 s16 AllocSpriteTiles(u16 tileCount);
-u16 AllocTilesForSpriteSheet(struct SpriteSheet *sheet);
-void AllocTilesForSpriteSheets(struct SpriteSheet *sheets);
-void LoadTilesForSpriteSheet(const struct SpriteSheet *sheet);
-void LoadTilesForSpriteSheets(struct SpriteSheet *sheets);
 void FreeSpriteTilesByTag(u16 tag);
 void FreeSpriteTileRanges(void);
 u16 GetSpriteTileStartByTag(u16 tag);
 u16 GetSpriteTileTagByTileStart(u16 start);
-void RequestSpriteSheetCopy(const struct SpriteSheet *sheet);
-u16 LoadSpriteSheetDeferred(const struct SpriteSheet *sheet);
 void FreeAllSpritePalettes(void);
 u32 LoadSpritePalette(const struct SpritePalette *palette);
 u32 LoadSpritePaletteWithTag(const u16 *pal, u16 tag);