diff --git a/include/battle_util.h b/include/battle_util.h
index b77fa10ad6..157ba8eb6d 100644
--- a/include/battle_util.h
+++ b/include/battle_util.h
@@ -52,8 +52,8 @@ void CancelMultiTurnMoves(u8 battlerId);
 bool8 WasUnableToUseMove(u8 battlerId);
 void PrepareStringBattle(u16 stringId, u8 battlerId);
 void ResetSentPokesToOpponentValue(void);
-void sub_803F9EC(u8 battlerId);
-void sub_803FA70(u8 battlerId);
+void OpponentSwitchInResetSentPokesToOpponentValue(u8 battlerId);
+void UpdateSentPokesToOpponentValue(u8 battlerId);
 void BattleScriptPush(const u8* bsPtr);
 void BattleScriptPushCursor(void);
 void BattleScriptPop(void);
diff --git a/src/AgbRfu_LinkManager.c b/src/AgbRfu_LinkManager.c
index e4127ee090..f6ebcc7265 100644
--- a/src/AgbRfu_LinkManager.c
+++ b/src/AgbRfu_LinkManager.c
@@ -918,7 +918,7 @@ static void rfu_LMAN_REQ_callback(u16 reqCommandId, u16 reqResult)
         {
             lman.reserveDisconnectSlot_flag = 0;
             lman.acceptCount = 0;
-            lman.acceptSlot_flag = 0;;
+            lman.acceptSlot_flag = 0;
             lman.parent_child = MODE_NEUTRAL;
             rfu_LMAN_managerChangeAgbClockMaster();
             if (reqCommandId == ID_STOP_MODE_REQ)
diff --git a/src/agb_flash.c b/src/agb_flash.c
index 1ad9e47ecb..eeccf11164 100644
--- a/src/agb_flash.c
+++ b/src/agb_flash.c
@@ -41,7 +41,7 @@ u16 ReadFlashId(void)
     u8 (*readFlash1)(u8 *);
 
     SetReadFlash1(readFlash1Buffer);
-    readFlash1 = (u8 (*)(u8 *))((s32)readFlash1Buffer + 1);
+    readFlash1 = (u8 (*)(u8 *))((uintptr_t)readFlash1Buffer + 1);
 
     // Enter ID mode.
     FLASH_WRITE(0x5555, 0xAA);
@@ -113,12 +113,12 @@ void SetReadFlash1(u16 *dest)
     u16 *src;
     u16 i;
 
-    PollFlashStatus = (u8 (*)(u8 *))((s32)dest + 1);
+    PollFlashStatus = (u8 (*)(u8 *))((uintptr_t)dest + 1);
 
     src = (u16 *)ReadFlash1;
-    src = (u16 *)((s32)src ^ 1);
+    src = (u16 *)((uintptr_t)src ^ 1);
 
-    i = ((s32)SetReadFlash1 - (s32)ReadFlash1) >> 1;
+    i = ((uintptr_t)SetReadFlash1 - (uintptr_t)ReadFlash1) >> 1;
 
     while (i != 0)
     {
@@ -154,10 +154,10 @@ void ReadFlash(u16 sectorNum, u32 offset, u8 *dest, u32 size)
     }
 
     funcSrc = (u16 *)ReadFlash_Core;
-    funcSrc = (u16 *)((s32)funcSrc ^ 1);
+    funcSrc = (u16 *)((uintptr_t)funcSrc ^ 1);
     funcDest = readFlash_Core_Buffer;
 
-    i = ((s32)ReadFlash - (s32)ReadFlash_Core) >> 1;
+    i = ((uintptr_t)ReadFlash - (uintptr_t)ReadFlash_Core) >> 1;
 
     while (i != 0)
     {
@@ -165,7 +165,7 @@ void ReadFlash(u16 sectorNum, u32 offset, u8 *dest, u32 size)
         i--;
     }
 
-    readFlash_Core = (void (*)(vu8 *, u8 *, u32))((s32)readFlash_Core_Buffer + 1);
+    readFlash_Core = (void (*)(vu8 *, u8 *, u32))((uintptr_t)readFlash_Core_Buffer + 1);
 
     src = FLASH_BASE + (sectorNum << gFlash->sector.shift) + offset;
 
@@ -202,10 +202,10 @@ u32 VerifyFlashSector(u16 sectorNum, u8 *src)
     }
 
     funcSrc = (u16 *)VerifyFlashSector_Core;
-    funcSrc = (u16 *)((s32)funcSrc ^ 1);
+    funcSrc = (u16 *)((uintptr_t)funcSrc ^ 1);
     funcDest = verifyFlashSector_Core_Buffer;
 
-    i = ((s32)VerifyFlashSector - (s32)VerifyFlashSector_Core) >> 1;
+    i = (u16)(((uintptr_t)VerifyFlashSector - (uintptr_t)VerifyFlashSector_Core) >> 1);
 
     while (i != 0)
     {
@@ -213,7 +213,7 @@ u32 VerifyFlashSector(u16 sectorNum, u8 *src)
         i--;
     }
 
-    verifyFlashSector_Core = (u32 (*)(u8 *, u8 *, u32))((s32)verifyFlashSector_Core_Buffer + 1);
+    verifyFlashSector_Core = (u32 (*)(u8 *, u8 *, u32))((uintptr_t)verifyFlashSector_Core_Buffer + 1);
 
     tgt = FLASH_BASE + (sectorNum << gFlash->sector.shift);
     size = gFlash->sector.size;
@@ -239,10 +239,10 @@ u32 VerifyFlashSectorNBytes(u16 sectorNum, u8 *src, u32 n)
     REG_WAITCNT = (REG_WAITCNT & ~WAITCNT_SRAM_MASK) | WAITCNT_SRAM_8;
 
     funcSrc = (u16 *)VerifyFlashSector_Core;
-    funcSrc = (u16 *)((s32)funcSrc ^ 1);
+    funcSrc = (u16 *)((uintptr_t)funcSrc ^ 1);
     funcDest = verifyFlashSector_Core_Buffer;
 
-    i = ((s32)VerifyFlashSector - (s32)VerifyFlashSector_Core) >> 1;
+    i = ((uintptr_t)VerifyFlashSector - (uintptr_t)VerifyFlashSector_Core) >> 1;
 
     while (i != 0)
     {
@@ -250,7 +250,7 @@ u32 VerifyFlashSectorNBytes(u16 sectorNum, u8 *src, u32 n)
         i--;
     }
 
-    verifyFlashSector_Core = (u32 (*)(u8 *, u8 *, u32))((s32)verifyFlashSector_Core_Buffer + 1);
+    verifyFlashSector_Core = (u32 (*)(u8 *, u8 *, u32))((uintptr_t)verifyFlashSector_Core_Buffer + 1);
 
     tgt = FLASH_BASE + (sectorNum << gFlash->sector.shift);
 
@@ -293,4 +293,4 @@ u32 ProgramFlashSectorAndVerifyNBytes(u16 sectorNum, u8 *src, u32 n)
     }
 
     return result;
-}
+}
\ No newline at end of file
diff --git a/src/battle_anim_bug.c b/src/battle_anim_bug.c
index ea3df80986..5e8a8b2a76 100644
--- a/src/battle_anim_bug.c
+++ b/src/battle_anim_bug.c
@@ -372,14 +372,11 @@ static void AnimTranslateStinger(struct Sprite *sprite)
     {
         gBattleAnimArgs[2] = -gBattleAnimArgs[2];
     }
-    else
+    else if (GetBattlerSide(gBattleAnimAttacker))
     {
-        if (GetBattlerSide(gBattleAnimAttacker))
-        {
-            gBattleAnimArgs[2] = -gBattleAnimArgs[2];
-            gBattleAnimArgs[1] = -gBattleAnimArgs[1];
-            gBattleAnimArgs[3] = -gBattleAnimArgs[3];
-        }
+        gBattleAnimArgs[2] = -gBattleAnimArgs[2];
+        gBattleAnimArgs[1] = -gBattleAnimArgs[1];
+        gBattleAnimArgs[3] = -gBattleAnimArgs[3];
     }
 
     if (!IsContest() && GetBattlerSide(gBattleAnimAttacker) == GetBattlerSide(gBattleAnimTarget))
@@ -387,13 +384,8 @@ static void AnimTranslateStinger(struct Sprite *sprite)
         if (GetBattlerPosition(gBattleAnimTarget) == B_POSITION_PLAYER_LEFT
          || GetBattlerPosition(gBattleAnimTarget) == B_POSITION_OPPONENT_LEFT)
         {
-            s16 temp1, temp2;
-
-            temp1 = gBattleAnimArgs[2];
-            gBattleAnimArgs[2] = -temp1;
-
-            temp2 = gBattleAnimArgs[0];
-            gBattleAnimArgs[0] = -temp2;
+            gBattleAnimArgs[2] *= -1;
+            gBattleAnimArgs[0] *= -1;
         }
     }
 
@@ -448,28 +440,24 @@ static void AnimMissileArc_Step(struct Sprite *sprite)
     else
     {
         s16 tempData[8];
-        u16 *data = sprite->data;
-        u16 x1 = sprite->pos1.x;
-        s16 x2 = sprite->pos2.x;
-        u16 y1 = sprite->pos1.y;
-        s16 y2 = sprite->pos2.y;
+        s16 xpos, ypos;
         int i;
 
         for (i = 0; i < 8; i++)
-            tempData[i] = data[i];
+            tempData[i] = sprite->data[i];
 
-        x2 += x1;
-        y2 += y1;
+        xpos = sprite->pos1.x + sprite->pos2.x;
+        ypos = sprite->pos1.y + sprite->pos2.y;
 
         if (!TranslateAnimHorizontalArc(sprite))
         {
-            u16 rotation = ArcTan2Neg(sprite->pos1.x + sprite->pos2.x - x2,
-                                  sprite->pos1.y + sprite->pos2.y - y2);
+            u16 rotation = ArcTan2Neg(sprite->pos1.x + sprite->pos2.x - xpos, //Isn't this zero lol
+                                  sprite->pos1.y + sprite->pos2.y - ypos);
             rotation += 0xC000;
             TrySetSpriteRotScale(sprite, FALSE, 0x100, 0x100, rotation);
 
             for (i = 0; i < 8; i++)
-                data[i] = tempData[i];
+                sprite->data[i] = tempData[i];
         }
     }
 }
diff --git a/src/battle_anim_effects_1.c b/src/battle_anim_effects_1.c
index 516c58e557..f4769145d4 100644
--- a/src/battle_anim_effects_1.c
+++ b/src/battle_anim_effects_1.c
@@ -3967,24 +3967,25 @@ static void AnimProtect(struct Sprite* sprite)
 
 static void AnimProtect_Step(struct Sprite *sprite)
 {
-    int a;
-    int i;
+    int i, savedPal;
     sprite->data[5] += 96;
     sprite->pos2.x = -(sprite->data[5] >> 8);
     if (++sprite->data[1] > 1)
     {
+        int id;
         sprite->data[1] = 0;
-        a = gPlttBufferFaded[sprite->data[2] + 1];
+        savedPal = gPlttBufferFaded[sprite->data[2] + 1];
         i = 0;
         do
         {
-            gPlttBufferFaded[sprite->data[2] + ++i] = gPlttBufferFaded[sprite->data[2] + i + 1];
+            id = sprite->data[2] + ++i;
+            gPlttBufferFaded[id] = gPlttBufferFaded[id + 1];
         } while (i < 6);
 
-        gPlttBufferFaded[sprite->data[2] + 7] = a;
+        gPlttBufferFaded[sprite->data[2] + 7] = savedPal;
     }
 
-    if (sprite->data[7] > 6 && sprite->data[0] >0 && ++sprite->data[6] > 1)
+    if (sprite->data[7] > 6 && sprite->data[0] > 0 && ++sprite->data[6] > 1)
     {
         sprite->data[6] = 0;
         sprite->data[7] -= 1;
diff --git a/src/battle_anim_psychic.c b/src/battle_anim_psychic.c
index 7918698fc0..25340f9c6a 100644
--- a/src/battle_anim_psychic.c
+++ b/src/battle_anim_psychic.c
@@ -1101,7 +1101,7 @@ static void AnimTask_TransparentCloneGrowAndShrink_Step(u8 taskId)
         break;
     case 1:
         task->data[1] -= 4;
-        task->data[2] = 256 - (gSineTable[task->data[1]] >> 1);;
+        task->data[2] = 256 - (gSineTable[task->data[1]] >> 1);
         SetSpriteRotScale(task->data[15], task->data[2], task->data[2], 0);
         SetBattlerSpriteYOffsetFromOtherYScale(task->data[15], task->data[13]);
         if (task->data[1] == 0)
diff --git a/src/battle_anim_utility_funcs.c b/src/battle_anim_utility_funcs.c
index dcef7d4830..bca669cc26 100644
--- a/src/battle_anim_utility_funcs.c
+++ b/src/battle_anim_utility_funcs.c
@@ -569,7 +569,7 @@ static void sub_81172EC(u8 taskId)
             if (gTasks[taskId].data[12] == 0)
             {
                 sub_80A477C(0);
-                gTasks[taskId].data[15]++;;
+                gTasks[taskId].data[15]++;
             }
         }
         break;
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 4e0e087b60..994d356258 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -5471,7 +5471,7 @@ static void Cmd_switchineffects(void)
     s32 i;
 
     gActiveBattler = GetBattlerForBattleScript(gBattlescriptCurrInstr[1]);
-    sub_803FA70(gActiveBattler);
+    UpdateSentPokesToOpponentValue(gActiveBattler);
 
     gHitMarker &= ~(HITMARKER_FAINTED(gActiveBattler));
     gSpecialStatuses[gActiveBattler].flag40 = 0;
diff --git a/src/battle_util.c b/src/battle_util.c
index 9cc2252b68..89fe95fbc4 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -259,7 +259,7 @@ void ResetSentPokesToOpponentValue(void)
         gSentPokesToOpponent[(i & BIT_FLANK) >> 1] = bits;
 }
 
-void sub_803F9EC(u8 battler)
+void OpponentSwitchInResetSentPokesToOpponentValue(u8 battler)
 {
     s32 i = 0;
     u32 bits = 0;
@@ -279,11 +279,11 @@ void sub_803F9EC(u8 battler)
     }
 }
 
-void sub_803FA70(u8 battler)
+void UpdateSentPokesToOpponentValue(u8 battler)
 {
     if (GetBattlerSide(battler) == B_SIDE_OPPONENT)
     {
-        sub_803F9EC(battler);
+        OpponentSwitchInResetSentPokesToOpponentValue(battler);
     }
     else
     {
@@ -1250,7 +1250,7 @@ bool8 HandleFaintedMonActions(void)
             gBattleStruct->faintedActionsState = 3;
             break;
         case 2:
-            sub_803F9EC(gBattlerFainted);
+            OpponentSwitchInResetSentPokesToOpponentValue(gBattlerFainted);
             if (++gBattleStruct->faintedActionsBattlerId == gBattlersCount)
                 gBattleStruct->faintedActionsState = 3;
             else
diff --git a/src/berry.c b/src/berry.c
index 98264f37b8..d70e8c3537 100644
--- a/src/berry.c
+++ b/src/berry.c
@@ -1331,7 +1331,7 @@ void ResetBerryTreeSparkleFlags(void)
     s16 bottom;
     int i;
 
-    GetCameraCoords(&cam_left, &cam_top);
+    GetCameraCoords((u16*)&cam_left, (u16*)&cam_top);
     left = cam_left;
     top = cam_top + 3;
     right = cam_left + 14;
diff --git a/src/berry_blender.c b/src/berry_blender.c
index a2a96c0892..de3cc62759 100644
--- a/src/berry_blender.c
+++ b/src/berry_blender.c
@@ -116,8 +116,8 @@ struct BerryBlenderData
     u16 field_116;
     u16 field_118;
     u16 field_11A;
-    u16 bg_X;
-    u16 bg_Y;
+    s16 bg_X;
+    s16 bg_Y;
     u8 field_120[3];
     u8 field_123;
     u16 scores[BLENDER_MAX_PLAYERS][BLENDER_SCORES_NO];
@@ -3166,13 +3166,13 @@ static void sub_80832E8(s16* a0)
 
 static void sub_808330C(void)
 {
-    sub_80832E8(&sBerryBlenderData->bg_X);
-    sub_80832E8(&sBerryBlenderData->bg_Y);
+    sub_80832E8((s16 *)&sBerryBlenderData->bg_X);
+    sub_80832E8((s16 *)&sBerryBlenderData->bg_Y);
 }
 
 static void sub_8083334(s16* a0, u16 a1)
 {
-    s32 var;
+    u8 var;
 
     if (a1 < 10)
         var = 16;
diff --git a/src/digit_obj_util.c b/src/digit_obj_util.c
index fe5d49e69d..f887dafb95 100644
--- a/src/digit_obj_util.c
+++ b/src/digit_obj_util.c
@@ -33,7 +33,7 @@ struct DigitPrinterAlloc
 };
 
 // this file's functions
-static u8 GetFirstOamId(u8 oamCount);;
+static u8 GetFirstOamId(u8 oamCount);
 static void CopyWorkToOam(struct DigitPrinter *objWork);
 static void DrawNumObjsLeadingZeros(struct DigitPrinter *objWork, s32 num, bool32 sign);
 static void DrawNumObjsMinusInFront(struct DigitPrinter *objWork, s32 num, bool32 sign);
diff --git a/src/easy_chat.c b/src/easy_chat.c
index 44a7b90c14..c839c0070d 100644
--- a/src/easy_chat.c
+++ b/src/easy_chat.c
@@ -2537,7 +2537,7 @@ u8 sub_811BBBC(void)
     return sEasyChatScreen->unk_0c;
 }
 
-void sub_811BBC8(u8 *arg0, u8 *arg1)
+static void sub_811BBC8(s8 *arg0, s8 *arg1)
 {
     *arg0 = sEasyChatScreen->unk_10;
     *arg1 = sEasyChatScreen->unk_11;
@@ -4529,18 +4529,18 @@ static void sub_811E30C(void)
     x = var0 * 13;
     x = x * 8 + 28;
     y = var1 * 16 + 96;
-    sub_811E34C(x, y);
+    sub_811E34C((u8)x, (u8)y);
 }
 
 static void sub_811E34C(u8 x, u8 y)
 {
-    if (sUnknown_0203A11C->unk2E4)
-    {
-        sUnknown_0203A11C->unk2E4->pos1.x = x;
-        sUnknown_0203A11C->unk2E4->pos1.y = y;
-        sUnknown_0203A11C->unk2E4->pos2.x = 0;
-        sUnknown_0203A11C->unk2E4->data[0] = 0;
-    }
+    if (!sUnknown_0203A11C->unk2E4)
+        return;
+
+    sUnknown_0203A11C->unk2E4->pos1.x = (s16)x;
+    sUnknown_0203A11C->unk2E4->pos1.y = (s16)y;
+    sUnknown_0203A11C->unk2E4->pos2.x = 0;
+    sUnknown_0203A11C->unk2E4->data[0] = 0;
 }
 
 static void sub_811E380(void)
diff --git a/src/event_object_movement.c b/src/event_object_movement.c
index de55362407..af34829695 100644
--- a/src/event_object_movement.c
+++ b/src/event_object_movement.c
@@ -1220,7 +1220,6 @@ static u8 InitObjectEventStateFromTemplate(struct ObjectEventTemplate *template,
     objectEvent->movementType = template->movementType;
     objectEvent->localId = template->localId;
     objectEvent->mapNum = mapNum;
-    objectEvent++; objectEvent--;
     objectEvent->mapGroup = mapGroup;
     objectEvent->initialCoords.x = x;
     objectEvent->initialCoords.y = y;
@@ -1233,13 +1232,11 @@ static u8 InitObjectEventStateFromTemplate(struct ObjectEventTemplate *template,
     objectEvent->range.as_nybbles.x = template->movementRangeX;
     objectEvent->range.as_nybbles.y = template->movementRangeY;
     objectEvent->trainerType = template->trainerType;
+    objectEvent->mapNum = mapNum; //redundant, but needed to match
     objectEvent->trainerRange_berryTreeId = template->trainerRange_berryTreeId;
     objectEvent->previousMovementDirection = gInitialMovementTypeFacingDirections[template->movementType];
     SetObjectEventDirection(objectEvent, objectEvent->previousMovementDirection);
     SetObjectEventDynamicGraphicsId(objectEvent);
-#ifndef NONMATCHING
-    asm("":::"r5", "r6");
-#endif
     if (gRangedMovementTypes[objectEvent->movementType])
     {
         if (objectEvent->range.as_nybbles.x == 0)
@@ -8950,7 +8947,7 @@ void CreateLevitateMovementTask(struct ObjectEvent *objectEvent)
     u8 taskId = CreateTask(ApplyLevitateMovement, 0xFF);
     struct Task *task = &gTasks[taskId];
 
-    StoreWordInTwoHalfwords(&task->data[0], (u32)objectEvent);
+    StoreWordInTwoHalfwords((u16 *)&task->data[0], (u32)objectEvent);
     objectEvent->warpArrowSpriteId = taskId;
     task->data[3] = 0xFFFF;
 }
@@ -8961,7 +8958,7 @@ static void ApplyLevitateMovement(u8 taskId)
     struct Sprite *sprite;
     struct Task *task = &gTasks[taskId];
 
-    LoadWordFromTwoHalfwords(&task->data[0], (u32 *)&objectEvent); // load the map object pointer.
+    LoadWordFromTwoHalfwords((u16 *)&task->data[0], (u32 *)&objectEvent); // load the map object pointer.
     sprite = &gSprites[objectEvent->spriteId];
 
     if(!(task->data[2] & 0x3))
@@ -8978,7 +8975,7 @@ void DestroyExtraMovementTask(u8 taskId)
     struct ObjectEvent *objectEvent;
     struct Task *task = &gTasks[taskId];
 
-    LoadWordFromTwoHalfwords(&task->data[0], (u32 *)&objectEvent); // unused objectEvent
+    LoadWordFromTwoHalfwords((u16 *)&task->data[0], (u32 *)&objectEvent); // unused objectEvent
     DestroyTask(taskId);
 }
 
diff --git a/src/field_effect.c b/src/field_effect.c
index 07579f55d5..bc1e6f134d 100644
--- a/src/field_effect.c
+++ b/src/field_effect.c
@@ -2501,7 +2501,7 @@ static void sub_80B8584(struct Task *task)
 {
     task->data[11] = REG_WININ;
     task->data[12] = REG_WINOUT;
-    StoreWordInTwoHalfwords(&task->data[13], (u32)gMain.vblankCallback);
+    StoreWordInTwoHalfwords((u16 *)&task->data[13], (u32)gMain.vblankCallback);
     task->data[1] = 0xf0f1;
     task->data[2] = 0x5051;
     task->data[3] = 0x3f;
diff --git a/src/item_use.c b/src/item_use.c
index 0aae441c8b..fa3f130810 100755
--- a/src/item_use.c
+++ b/src/item_use.c
@@ -721,7 +721,7 @@ static void ItemUseOnFieldCB_WailmerPailBerry(u8 taskId)
 
 static bool8 TryToWaterSudowoodo(void)
 {
-    u16 x, y;
+    s16 x, y;
     u8 z;
     u8 objId;
     GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
diff --git a/src/list_menu.c b/src/list_menu.c
index ddcad0fe9c..ebf02bab65 100644
--- a/src/list_menu.c
+++ b/src/list_menu.c
@@ -1257,17 +1257,17 @@ void ListMenuSetUpRedOutlineCursorSpriteOamTable(u16 rowWidth, u16 rowHeight, st
     s32 i, j, id = 0;
 
     subsprites[id] = sSubsprite_RedOutline1;
-    subsprites[id].x = 136;
-    subsprites[id].y = 136;
+    subsprites[id].x = -120;
+    subsprites[id].y = -120;
     id++;
 
     subsprites[id] = sSubsprite_RedOutline2;
     subsprites[id].x = rowWidth + 128;
-    subsprites[id].y = 136;
+    subsprites[id].y = -120;
     id++;
 
     subsprites[id] = sSubsprite_RedOutline7;
-    subsprites[id].x = 136;
+    subsprites[id].x = -120;
     subsprites[id].y = rowHeight + 128;
     id++;
 
@@ -1297,7 +1297,7 @@ void ListMenuSetUpRedOutlineCursorSpriteOamTable(u16 rowWidth, u16 rowHeight, st
         for (j = 8; j < rowHeight - 8; j += 8)
         {
             subsprites[id] = sSubsprite_RedOutline4;
-            subsprites[id].x = 136;
+            subsprites[id].x = -120;
             subsprites[id].y = j - 120;
             id++;
 
diff --git a/src/mirage_tower.c b/src/mirage_tower.c
index e2f5cefb78..3f3dc1ef85 100644
--- a/src/mirage_tower.c
+++ b/src/mirage_tower.c
@@ -168,7 +168,7 @@ const struct PulseBlendSettings gMirageTowerPulseBlendSettings = {
     .numColors = 15,
     .delay = 5,
     .numFadeCycles = -1,
-    .maxBlendCoeff = 11,
+    .maxBlendCoeff = -5,
     .fadeType = 1,
     .restorePaletteOnUnload = FALSE,
     .unk7_7 = 1,
@@ -412,10 +412,9 @@ void DoMirageTowerCeilingCrumble(void)
 
 static void WaitCeilingCrumble(u8 taskId)
 {
-    u16 *data = gTasks[taskId].data;
-    data[1]++;
+    u16 *data = (u16 *)gTasks[taskId].data;
     // Either wait 1000 frames, or until all 16 crumble sprites and the one screen-shake task are completed.
-    if (data[1] == 1000 || data[0] == 17)
+    if (++data[1] == 1000 || data[0] == 17)
         gTasks[taskId].func = FinishCeilingCrumbleTask;
 }
 
@@ -691,7 +690,7 @@ static void DoFossilFallAndSink(u8 taskId)
         if (gSprites[sUnknown_0203CF0C->spriteId].callback != SpriteCallbackDummy)
             return;
         DestroySprite(&gSprites[sUnknown_0203CF0C->spriteId]);
-        FREE_AND_SET_NULL(sUnknown_0203CF0C->unkC);;
+        FREE_AND_SET_NULL(sUnknown_0203CF0C->unkC);
         FREE_AND_SET_NULL(sUnknown_0203CF0C->frameImage);
         FREE_AND_SET_NULL(sUnknown_0203CF0C->frameImageTiles);
         FREE_AND_SET_NULL(sUnknown_0203CF0C);
diff --git a/src/overworld.c b/src/overworld.c
index ea0d633bcf..6b8fd232e6 100644
--- a/src/overworld.c
+++ b/src/overworld.c
@@ -3212,7 +3212,7 @@ static void SpriteCB_LinkPlayer(struct Sprite *sprite)
     SetObjectSubpriorityByZCoord(objEvent->previousElevation, sprite, 1);
     sprite->oam.priority = ZCoordToPriority(objEvent->previousElevation);
 
-    if (!linkPlayerObjEvent->movementMode != MOVEMENT_MODE_FREE)
+    if (linkPlayerObjEvent->movementMode == MOVEMENT_MODE_FREE)
         StartSpriteAnim(sprite, GetFaceDirectionAnimNum(objEvent->range.as_byte));
     else
         StartSpriteAnimIfDifferent(sprite, GetMoveDirectionAnimNum(objEvent->range.as_byte));
diff --git a/src/party_menu.c b/src/party_menu.c
index d5bc6dfb63..6a38d90989 100755
--- a/src/party_menu.c
+++ b/src/party_menu.c
@@ -1862,7 +1862,7 @@ u8 GetMonAilment(struct Pokemon *mon)
 
 static void SetPartyMonsAllowedInMinigame(void)
 {
-    u16 *ptr;
+    s16 *ptr;
 
     if (gPartyMenu.menuType == PARTY_MENU_TYPE_MINIGAME)
     {
@@ -4951,9 +4951,9 @@ static void Task_DisplayLevelUpStatsPg2(u8 taskId)
 
 static void DisplayLevelUpStatsPg1(u8 taskId)
 {
-    s16 *arrayPtr = sPartyMenuInternal->data;
+    u16 *arrayPtr = (u16*)sPartyMenuInternal->data;
 
-    arrayPtr[12] = CreateLevelUpStatsWindow();
+    arrayPtr[12] = (u16)CreateLevelUpStatsWindow();
     DrawLevelUpWindowPg1(arrayPtr[12], arrayPtr, &arrayPtr[6], TEXT_COLOR_WHITE, TEXT_COLOR_DARK_GREY, TEXT_COLOR_LIGHT_GREY);
     CopyWindowToVram(arrayPtr[12], 2);
     ScheduleBgCopyTilemapToVram(2);
@@ -4961,7 +4961,7 @@ static void DisplayLevelUpStatsPg1(u8 taskId)
 
 static void DisplayLevelUpStatsPg2(u8 taskId)
 {
-    s16 *arrayPtr = sPartyMenuInternal->data;
+    u16 *arrayPtr = (u16 *)sPartyMenuInternal->data;
 
     DrawLevelUpWindowPg2(arrayPtr[12], &arrayPtr[6], TEXT_COLOR_WHITE, TEXT_COLOR_DARK_GREY, TEXT_COLOR_LIGHT_GREY);
     CopyWindowToVram(arrayPtr[12], 2);
diff --git a/src/player_pc.c b/src/player_pc.c
index fc0bd9f4c8..2010d84f85 100644
--- a/src/player_pc.c
+++ b/src/player_pc.c
@@ -327,7 +327,7 @@ void PlayerPC(void)
 
 static void InitPlayerPCMenu(u8 taskId)
 {
-    u16 *data;
+    s16 *data;
     struct WindowTemplate windowTemplate;
 
     data = gTasks[taskId].data;
@@ -346,7 +346,7 @@ static void InitPlayerPCMenu(u8 taskId)
 
 static void PlayerPCProcessMenuInput(u8 taskId)
 {
-    u16 *data;
+    s16 *data;
     s8 inputOptionId;
 
     data = gTasks[taskId].data;
@@ -435,7 +435,7 @@ static void PlayerPC_TurnOff(u8 taskId)
 
 static void InitItemStorageMenu(u8 taskId, u8 var)
 {
-    u16 *data;
+    s16 *data;
     struct WindowTemplate windowTemplate;
 
     data = gTasks[taskId].data;
@@ -548,7 +548,7 @@ static void ItemStorage_Toss(u8 taskId)
 
 static void ItemStorage_WithdrawToss_Helper(u8 taskId, bool8 toss)
 {
-    u16 *data = gTasks[taskId].data;
+    s16 *data = gTasks[taskId].data;
 
     data[3] = toss;
     sub_816B4DC(taskId);
@@ -581,9 +581,9 @@ static void ItemStorage_SetItemAndMailCount(u8 taskId)
 
 static void sub_816B4DC(u8 taskId)
 {
-    u16 *data = gTasks[taskId].data;
+    u16 *data = (u16 *)gTasks[taskId].data;
 
-    ClearStdWindowAndFrameToTransparent(data[4], FALSE);
+    ClearStdWindowAndFrameToTransparent((u8)data[4], FALSE);
     ClearWindowTilemap(data[4]);
     RemoveWindow(data[4]);
     ScheduleBgCopyTilemapToVram(0);
@@ -1380,7 +1380,7 @@ static void ItemStorage_DoItemToss(u8 taskId)
 
     data = gTasks[taskId].data;
     b = (playerPCItemPageInfo.cursorPos + playerPCItemPageInfo.itemsAbove);
-    if (!ItemId_GetImportance(gSaveBlock1Ptr->pcItems[b].itemId))
+    if (ItemId_GetImportance(gSaveBlock1Ptr->pcItems[b].itemId) == 0)
     {
         CopyItemName(gSaveBlock1Ptr->pcItems[b].itemId, gStringVar1);
         ConvertIntToDecimalStringN(gStringVar2, data[2], STR_CONV_MODE_LEFT_ALIGN, 3);
diff --git a/src/pokedex.c b/src/pokedex.c
index 0541f3f2e6..777cc52cd6 100644
--- a/src/pokedex.c
+++ b/src/pokedex.c
@@ -5117,9 +5117,9 @@ static void Task_SelectSearchMenuItem(u8 taskId)
     u16 *scrollOffset;
 
     DrawOrEraseSearchParameterBox(FALSE);
-    menuItem = gTasks[taskId].tMenuItem;
-    cursorPos = &gTasks[taskId].data[sSearchOptions[menuItem].taskDataCursorPos];
-    scrollOffset = &gTasks[taskId].data[sSearchOptions[menuItem].taskDataScrollOffset];
+    menuItem = (u16)gTasks[taskId].tMenuItem;
+    cursorPos = (u16*)&gTasks[taskId].data[sSearchOptions[menuItem].taskDataCursorPos];
+    scrollOffset = (u16*)&gTasks[taskId].data[sSearchOptions[menuItem].taskDataScrollOffset];
     gTasks[taskId].tCursorPos = *cursorPos;
     gTasks[taskId].tScrollOffset = *scrollOffset;
     PrintSearchParameterText(taskId);
diff --git a/src/pokemon.c b/src/pokemon.c
index 80e93c5685..b26f2f412a 100644
--- a/src/pokemon.c
+++ b/src/pokemon.c
@@ -4628,7 +4628,7 @@ void CopyPlayerPartyMonToBattleData(u8 battlerId, u8 partyIndex)
         gBattleMons[battlerId].statStages[i] = 6;
 
     gBattleMons[battlerId].status2 = 0;
-    sub_803FA70(battlerId);
+    UpdateSentPokesToOpponentValue(battlerId);
     ClearTemporarySpeciesSpriteData(battlerId, FALSE);
 }
 
diff --git a/src/roulette.c b/src/roulette.c
index 58e120cb50..f55736a969 100644
--- a/src/roulette.c
+++ b/src/roulette.c
@@ -633,7 +633,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -643,7 +643,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -653,7 +653,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -663,7 +663,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -673,7 +673,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -683,7 +683,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -693,7 +693,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -703,7 +703,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -713,7 +713,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -723,7 +723,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -733,7 +733,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -743,7 +743,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 1,
         .var06 = 0xFF,
         .var07_0 = 8,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -753,7 +753,7 @@ static const struct UnkStruct1 gUnknown_085B6388[] =
         .var05 = 10,
         .var06 = 0xFF,
         .var07_0 = 14,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
 };
@@ -767,7 +767,7 @@ static const struct UnkStruct1 gUnknown_085B63F0[] =
         .var05 = 30,
         .var06 = 0xFF,
         .var07_0 = 14,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -777,7 +777,7 @@ static const struct UnkStruct1 gUnknown_085B63F0[] =
         .var05 = 30,
         .var06 = 0xFF,
         .var07_0 = 14,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     },
     {
@@ -787,7 +787,7 @@ static const struct UnkStruct1 gUnknown_085B63F0[] =
         .var05 = 30,
         .var06 = 0xFF,
         .var07_0 = 14,
-        .var07_5 = 2,
+        .var07_5 = -2,
         .var07_7 = 0
     }
 };
diff --git a/src/save_failed_screen.c b/src/save_failed_screen.c
index a2a2acc8d6..7c824e82dd 100644
--- a/src/save_failed_screen.c
+++ b/src/save_failed_screen.c
@@ -349,7 +349,7 @@ static void VBlankCB_UpdateClockGraphics(void)
 
     gMain.oamBuffer[0] = sClockOamData;
     gMain.oamBuffer[0].x = 112;
-    gMain.oamBuffer[0].y = (CLOCK_WIN_TOP + 1) * 8;;
+    gMain.oamBuffer[0].y = (CLOCK_WIN_TOP + 1) * 8;
 
     if (gSaveFailedClockInfo[CLOCK_RUNNING] != FALSE)
     {
diff --git a/src/scrcmd.c b/src/scrcmd.c
index 4a7f4ea735..2a6abf17e1 100644
--- a/src/scrcmd.c
+++ b/src/scrcmd.c
@@ -788,8 +788,8 @@ bool8 ScrCmd_warphole(struct ScriptContext *ctx)
 {
     u8 mapGroup = ScriptReadByte(ctx);
     u8 mapNum = ScriptReadByte(ctx);
-    u16 x;
-    u16 y;
+    s16 x;
+    s16 y;
 
     PlayerGetDestCoords(&x, &y);
     if (mapGroup == 0xFF && mapNum == 0xFF)
diff --git a/src/secret_base.c b/src/secret_base.c
index 83626710fc..3f69e0419e 100644
--- a/src/secret_base.c
+++ b/src/secret_base.c
@@ -964,7 +964,7 @@ static void HandleRegistryMenuInput(u8 taskId)
 
     data = gTasks[taskId].data;
     input = ListMenu_ProcessInput(data[5]);
-    ListMenuGetScrollAndRow(data[5], &data[2], &data[1]);
+    ListMenuGetScrollAndRow(data[5], (u16 *)&data[2], (u16 *)&data[1]);
     switch (input)
     {
     case LIST_NOTHING_CHOSEN:
@@ -1045,10 +1045,10 @@ void DeleteRegistry_Yes_Callback(u8 taskId)
 {
     s16 *data = gTasks[taskId].data;
     ClearDialogWindowAndFrame(0, 0);
-    DestroyListMenuTask(data[5], &data[2], &data[1]);
+    DestroyListMenuTask((u8)data[5], (u16 *)&data[2], (u16 *)&data[1]);
     gSaveBlock1Ptr->secretBases[data[4]].registryStatus = 0;
     BuildRegistryMenuItems(taskId);
-    sub_812225C(&data[2], &data[1], data[3], data[0]);
+    sub_812225C((u16 *)&data[2], (u16 *)&data[1], (u16)data[3], (u16)data[0]);
     FinalizeRegistryMenu(taskId);
     gTasks[taskId].func = HandleRegistryMenuInput;
 }
@@ -1062,7 +1062,7 @@ static void DeleteRegistry_No(u8 taskId)
 {
     s16 *data = gTasks[taskId].data;
     ClearDialogWindowAndFrame(0, 0);
-    DestroyListMenuTask(data[5], &data[2], &data[1]);
+    DestroyListMenuTask((u8)data[5], (u16 *)&data[2], (u16 *)&data[1]);
     FinalizeRegistryMenu(taskId);
     gTasks[taskId].func = HandleRegistryMenuInput;
 }
diff --git a/src/slot_machine.c b/src/slot_machine.c
index 3fde76ab0a..8669b543b0 100644
--- a/src/slot_machine.c
+++ b/src/slot_machine.c
@@ -985,7 +985,7 @@ static void PlaySlotMachine_Internal(u8 slotMachineIndex, MainCallback exitCallb
 {
     struct Task *task = &gTasks[CreateTask(SlotMachineDummyTask, 0xFF)];
     task->data[0] = slotMachineIndex;
-    StoreWordInTwoHalfwords(&task->data[1], (intptr_t)exitCallback);
+    StoreWordInTwoHalfwords((u16 *)&task->data[1], (intptr_t)exitCallback);
 }
 
 
diff --git a/src/start_menu.c b/src/start_menu.c
index 88ad364c7b..68a3161855 100644
--- a/src/start_menu.c
+++ b/src/start_menu.c
@@ -463,7 +463,7 @@ static bool32 InitStartMenuStep(void)
         sInitStartMenuData[0]++;
         break;
     case 4:
-        if (PrintStartMenuActions(&sInitStartMenuData[1], 2))
+        if (PrintStartMenuActions((s8 *)&sInitStartMenuData[1], 2))
             sInitStartMenuData[0]++;
         break;
     case 5:
diff --git a/src/trainer_see.c b/src/trainer_see.c
index 68a16e208b..93daab421d 100644
--- a/src/trainer_see.c
+++ b/src/trainer_see.c
@@ -603,7 +603,7 @@ static void sub_80B44C8(u8 taskId)
     struct ObjectEvent *objEvent;
 
     // another objEvent loaded into by loadword?
-    LoadWordFromTwoHalfwords(&task->data[1], (u32 *)&objEvent);
+    LoadWordFromTwoHalfwords((u16*)&task->data[1], (u32 *)&objEvent);
     if (!task->data[7])
     {
         ObjectEventClearHeldMovement(objEvent);
@@ -624,7 +624,7 @@ static void sub_80B44C8(u8 taskId)
 
 void sub_80B4578(struct ObjectEvent *var)
 {
-    StoreWordInTwoHalfwords(&gTasks[CreateTask(sub_80B44C8, 0)].data[1], (u32)var);
+    StoreWordInTwoHalfwords((u16 *)&gTasks[CreateTask(sub_80B44C8, 0)].data[1], (u32)var);
 }
 
 void EndTrainerApproach(void)
diff --git a/tools/gbagfx/gfx.c b/tools/gbagfx/gfx.c
index 8d959465f7..4e85953fdc 100644
--- a/tools/gbagfx/gfx.c
+++ b/tools/gbagfx/gfx.c
@@ -282,7 +282,7 @@ static void HflipTile(unsigned char * tile, int bitDepth)
         for (i = 0; i < 8; i++)
         {
             SWAP_NYBBLES(&tile[4 * i + 0], &tile[4 * i + 3]);
-            SWAP_NYBBLES(&tile[4 * i + 1], &tile[4 * i + 2]);;
+            SWAP_NYBBLES(&tile[4 * i + 1], &tile[4 * i + 2]);
         }
         break;
     case 8: