diff --git a/include/berry.h b/include/berry.h
index 1a8b7fa25..cfd66c61e 100644
--- a/include/berry.h
+++ b/include/berry.h
@@ -1,6 +1,13 @@
 #ifndef GUARD_BERRY_H
 #define GUARD_BERRY_H
 
+#define BERRY_NONE 0
+#define FIRST_BERRY ITEM_CHERI_BERRY
+#define LAST_BERRY  ITEM_ENIGMA_BERRY
+
+#define GETBERRYID(berry) ((berry - FIRST_BERRY) + 1)
+#define GETITEMID(berry) ((berry + FIRST_BERRY) - 1)
+
 enum
 {
     BERRY_FIRMNESS_UNKNOWN,
@@ -21,6 +28,17 @@ enum
     FLAVOR_COUNT
 };
 
+enum
+{
+    BERRY_STAGE_NO_BERRY, // there is no tree planted and the soil is completely flat.
+    BERRY_STAGE_PLANTED,
+    BERRY_STAGE_SPROUTED,
+    BERRY_STAGE_TALLER,
+    BERRY_STAGE_FLOWERING,
+    BERRY_STAGE_BERRIES,
+    BERRY_STAGE_SPARKLING = 0xFF,
+};
+
 #define NUM_BERRIES 44
 
 extern const u8 *const gBerryTreeEventObjectGraphicsIdTablePointers[];
@@ -29,7 +47,6 @@ extern const u8 *const gBerryTreePaletteSlotTablePointers[];
 
 void ClearEnigmaBerries(void);
 void SetEnigmaBerry(u8 *src);
-u32 GetEnigmaBerryChecksum(struct EnigmaBerry *enigmaBerry);
 bool32 IsEnigmaBerryValid(void);
 const struct Berry *GetBerryInfo(u8 berry);
 struct BerryTree *GetBerryTreeInfo(u8 id);
@@ -37,28 +54,20 @@ bool32 EventObjectInteractionWaterBerryTree(void);
 bool8 IsPlayerFacingPlantedBerryTree(void);
 bool8 TryToWaterBerryTree(void);
 void ClearBerryTrees(void);
-bool32 BerryTreeGrow(struct BerryTree *tree);
 void BerryTreeTimeUpdate(s32 minutes);
 void PlantBerryTree(u8 id, u8 berry, u8 stage, bool8 sparkle);
 void RemoveBerryTree(u8 id);
 u8 GetBerryTypeByBerryTreeId(u8 id);
 u8 GetStageByBerryTreeId(u8);
 u8 ItemIdToBerryType(u16 item);
-u16 BerryTypeToItemId(u16 berry);
 void GetBerryNameByBerryType(u8 berry, u8 *string);
 void ResetBerryTreeSparkleFlag(u8 id);
-u8 BerryTreeGetNumStagesWatered(struct BerryTree *tree);
-u8 GetNumStagesWateredByBerryTreeId(u8 id);
-u8 CalcBerryYieldInternal(u16 max, u16 min, u8 water);
-u8 CalcBerryYield(struct BerryTree *tree);
-u8 GetBerryCountByBerryTreeId(u8 id);
-u16 GetStageDurationByBerryType(u8);
 void Bag_ChooseBerry(void);
 void EventObjectInteractionGetBerryTreeData(void);
 void EventObjectInteractionPlantBerryTree(void);
 void EventObjectInteractionPickBerryTree(void);
 void EventObjectInteractionRemoveBerryTree(void);
-u8 PlayerHasBerries(void);
+bool8 PlayerHasBerries(void);
 void ResetBerryTreeSparkleFlags(void);
 
 extern const struct Berry gBerries[];
diff --git a/include/event_object_movement.h b/include/event_object_movement.h
index 8a66d140c..98395593b 100644
--- a/include/event_object_movement.h
+++ b/include/event_object_movement.h
@@ -75,7 +75,7 @@ struct PairedPalettes
 
 struct LockedAnimEventObjects
 {
-    u8 eventObjectIds[NUM_EVENT_OBJECTS];
+    u8 eventObjectIds[EVENT_OBJECTS_COUNT];
     u8 count;
 };
 
diff --git a/include/fldeff_teleport.h b/include/fldeff_teleport.h
deleted file mode 100644
index 71fb64ad2..000000000
--- a/include/fldeff_teleport.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef GUARD_FLDEFF_TELEPORT_H
-#define GUARD_FLDEFF_TELEPORT_H
-
-void hm_teleport_run_dp02scr(void);
-void sub_817C94C(void);
-
-#endif // GUARD_FLDEFF_TELEPORT_H
diff --git a/include/global.fieldmap.h b/include/global.fieldmap.h
index 3f0b61ea7..055f29f40 100644
--- a/include/global.fieldmap.h
+++ b/include/global.fieldmap.h
@@ -1,8 +1,6 @@
 #ifndef GUARD_GLOBAL_FIELDMAP_H
 #define GUARD_GLOBAL_FIELDMAP_H
 
-#define NUM_EVENT_OBJECTS 16
-
 enum
 {
     CONNECTION_SOUTH = 1,
@@ -313,7 +311,7 @@ struct Camera
     s32 y;
 };
 
-extern struct EventObject gEventObjects[NUM_EVENT_OBJECTS];
+extern struct EventObject gEventObjects[EVENT_OBJECTS_COUNT];
 extern u8 gSelectedEventObject;
 extern struct MapHeader gMapHeader;
 extern struct PlayerAvatar gPlayerAvatar;
diff --git a/include/global.h b/include/global.h
index 027065481..f77b3159e 100644
--- a/include/global.h
+++ b/include/global.h
@@ -119,22 +119,22 @@ enum LanguageId
 #define GAME_LANGUAGE (LANGUAGE_ENGLISH)
 
 // capacities of various saveblock objects
-#define DAYCARE_MON_COUNT   2
-#define POKEBLOCKS_COUNT    40
-#define EVENT_OBJECTS_COUNT   16
+#define DAYCARE_MON_COUNT     2
+#define POKEBLOCKS_COUNT     40
+#define EVENT_OBJECTS_COUNT  16
 #define BERRY_TREES_COUNT   128
 #define FLAGS_COUNT         300
 #define VARS_COUNT          256
-#define MAIL_COUNT          16
-#define SECRET_BASES_COUNT  20
-#define TV_SHOWS_COUNT      25
-#define POKE_NEWS_COUNT     16
-#define PC_ITEMS_COUNT      50
-#define BAG_ITEMS_COUNT     30
-#define BAG_KEYITEMS_COUNT  30
-#define BAG_POKEBALLS_COUNT 16
-#define BAG_TMHM_COUNT      64
-#define BAG_BERRIES_COUNT   46
+#define MAIL_COUNT           16
+#define SECRET_BASES_COUNT   20
+#define TV_SHOWS_COUNT       25
+#define POKE_NEWS_COUNT      16
+#define PC_ITEMS_COUNT       50
+#define BAG_ITEMS_COUNT      30
+#define BAG_KEYITEMS_COUNT   30
+#define BAG_POKEBALLS_COUNT  16
+#define BAG_TMHM_COUNT       64
+#define BAG_BERRIES_COUNT    46
 
 #define PYRAMID_BAG_ITEMS_COUNT 10
 
diff --git a/src/berry.c b/src/berry.c
index ea216b61c..ce2a29901 100644
--- a/src/berry.c
+++ b/src/berry.c
@@ -1,12 +1,13 @@
 #include "global.h"
 #include "berry.h"
-#include "main.h"
-#include "item.h"
-#include "constants/items.h"
-#include "text.h"
-#include "random.h"
 #include "event_data.h"
 #include "fieldmap.h"
+#include "item.h"
+#include "main.h"
+#include "random.h"
+#include "text.h"
+#include "constants/event_object_movement_constants.h"
+#include "constants/items.h"
 
 extern u8 EventObjectGetBerryTreeId(u8 eventObjectId);
 extern void sub_8092EF0(u8 mapId, u8 mapNumber, u8 mapGroup);
@@ -18,6 +19,17 @@ extern u16 gSpecialVar_ItemId;
 
 extern const u8 BerryTreeScript[];
 
+static u32 GetEnigmaBerryChecksum(struct EnigmaBerry *enigmaBerry);
+static bool32 BerryTreeGrow(struct BerryTree *tree);
+static u16 BerryTypeToItemId(u16 berry);
+static u8 BerryTreeGetNumStagesWatered(struct BerryTree *tree);
+static u8 GetNumStagesWateredByBerryTreeId(u8 id);
+static u8 CalcBerryYieldInternal(u16 max, u16 min, u8 water);
+static u8 CalcBerryYield(struct BerryTree *tree);
+static u8 GetBerryCountByBerryTreeId(u8 id);
+static u16 GetStageDurationByBerryType(u8);
+
+//.rodata
 static const u8 sBerryDescriptionPart1_Cheri[] = _("Blooms with delicate pretty flowers.");
 static const u8 sBerryDescriptionPart2_Cheri[] = _("The bright red BERRY is very spicy.");
 static const u8 sBerryDescriptionPart1_Chesto[] = _("The BERRY’s thick skin and fruit are");
@@ -845,6 +857,7 @@ const struct UnkStruct_0858AB24 gUnknown_0858AB24[] = {
 
 const struct BerryTree gBlankBerryTree = {};
 
+//.text
 // unused
 void ClearEnigmaBerries(void)
 {
@@ -860,7 +873,7 @@ void SetEnigmaBerry(u8 *src)
         dest[i] = src[i];
 }
 
-u32 GetEnigmaBerryChecksum(struct EnigmaBerry *enigmaBerry)
+static u32 GetEnigmaBerryChecksum(struct EnigmaBerry *enigmaBerry)
 {
     u32 i;
     u32 checksum;
@@ -889,12 +902,12 @@ bool32 IsEnigmaBerryValid(void)
 
 const struct Berry *GetBerryInfo(u8 berry)
 {
-    if (berry == 0x2B && IsEnigmaBerryValid())
+    if (berry == GETBERRYID(ITEM_ENIGMA_BERRY) && IsEnigmaBerryValid())
         return (struct Berry*)(&gSaveBlock1Ptr->enigmaBerry.berry);
     else
     {
-        if (berry == 0 || berry > 0x2B)
-            berry = 1;
+        if (berry == BERRY_NONE || berry > GETBERRYID(LAST_BERRY))
+            berry = GETBERRYID(FIRST_BERRY);
         return &gBerries[berry - 1];
     }
 }
@@ -910,16 +923,16 @@ bool32 EventObjectInteractionWaterBerryTree(void)
 
     switch (tree->stage)
     {
-    case 1:
+    case BERRY_STAGE_PLANTED:
         tree->watered1 = TRUE;
         break;
-    case 2:
+    case BERRY_STAGE_SPROUTED:
         tree->watered2 = TRUE;
         break;
-    case 3:
+    case BERRY_STAGE_TALLER:
         tree->watered3 = TRUE;
         break;
-    case 4:
+    case BERRY_STAGE_FLOWERING:
         tree->watered4 = TRUE;
         break;
     default:
@@ -953,28 +966,28 @@ void ClearBerryTrees(void)
         gSaveBlock1Ptr->berryTrees[i] = gBlankBerryTree;
 }
 
-bool32 BerryTreeGrow(struct BerryTree *tree)
+static bool32 BerryTreeGrow(struct BerryTree *tree)
 {
     if (tree->growthSparkle)
         return FALSE;
     switch (tree->stage)
     {
-    case 0:
+    case BERRY_STAGE_NO_BERRY:
         return FALSE;
-    case 4:
+    case BERRY_STAGE_FLOWERING:
         tree->berryYield = CalcBerryYield(tree);
-    case 1:
-    case 2:
-    case 3:
+    case BERRY_STAGE_PLANTED:
+    case BERRY_STAGE_SPROUTED:
+    case BERRY_STAGE_TALLER:
         tree->stage++;
         break;
-    case 5:
+    case BERRY_STAGE_BERRIES:
         tree->watered1 = 0;
         tree->watered2 = 0;
         tree->watered3 = 0;
         tree->watered4 = 0;
         tree->berryYield = 0;
-        tree->stage = 2;
+        tree->stage = BERRY_STAGE_SPROUTED;
         if (++tree->regrowthCount == 10)
             *tree = gBlankBerryTree;
         break;
@@ -1012,7 +1025,7 @@ void BerryTreeTimeUpdate(s32 minutes)
                     tree->minutesUntilNextStage = GetStageDurationByBerryType(tree->berry);
                     if (!BerryTreeGrow(tree))
                         break;
-                    if (tree->stage == 5)
+                    if (tree->stage == BERRY_STAGE_BERRIES)
                         tree->minutesUntilNextStage *= 4;
                 }
             }
@@ -1028,7 +1041,7 @@ void PlantBerryTree(u8 id, u8 berry, u8 stage, bool8 sparkle)
     tree->berry = berry;
     tree->minutesUntilNextStage = GetStageDurationByBerryType(berry);
     tree->stage = stage;
-    if (stage == 5)
+    if (stage == BERRY_STAGE_BERRIES)
     {
         tree->berryYield = CalcBerryYield(tree);
         tree->minutesUntilNextStage *= 4;
@@ -1064,7 +1077,7 @@ u8 ItemIdToBerryType(u16 item)
         return ITEM_TO_BERRY(item);
 }
 
-u16 BerryTypeToItemId(u16 berry)
+static u16 BerryTypeToItemId(u16 berry)
 {
     u16 item = berry - 1;
 
@@ -1087,10 +1100,10 @@ void GetBerryCountStringByBerryType(u8 berry, u8* dest, u32 berryCount)
 
 void ResetBerryTreeSparkleFlag(u8 id)
 {
-    GetBerryTreeInfo(id)->growthSparkle = 0;
+    GetBerryTreeInfo(id)->growthSparkle = FALSE;
 }
 
-u8 BerryTreeGetNumStagesWatered(struct BerryTree *tree)
+static u8 BerryTreeGetNumStagesWatered(struct BerryTree *tree)
 {
     u8 count = 0;
 
@@ -1105,12 +1118,12 @@ u8 BerryTreeGetNumStagesWatered(struct BerryTree *tree)
     return count;
 }
 
-u8 GetNumStagesWateredByBerryTreeId(u8 id)
+static u8 GetNumStagesWateredByBerryTreeId(u8 id)
 {
     return BerryTreeGetNumStagesWatered(GetBerryTreeInfo(id));
 }
 
-u8 CalcBerryYieldInternal(u16 max, u16 min, u8 water)
+static u8 CalcBerryYieldInternal(u16 max, u16 min, u8 water)
 {
     u32 randMin;
     u32 randMax;
@@ -1133,7 +1146,7 @@ u8 CalcBerryYieldInternal(u16 max, u16 min, u8 water)
     }
 }
 
-u8 CalcBerryYield(struct BerryTree *tree)
+static u8 CalcBerryYield(struct BerryTree *tree)
 {
     const struct Berry *berry = GetBerryInfo(tree->berry);
     u8 min = berry->minYield;
@@ -1142,12 +1155,12 @@ u8 CalcBerryYield(struct BerryTree *tree)
     return CalcBerryYieldInternal(max, min, BerryTreeGetNumStagesWatered(tree));
 }
 
-u8 GetBerryCountByBerryTreeId(u8 id)
+static u8 GetBerryCountByBerryTreeId(u8 id)
 {
     return gSaveBlock1Ptr->berryTrees[id].berryYield;
 }
 
-u16 GetStageDurationByBerryType(u8 berry)
+static u16 GetStageDurationByBerryType(u8 berry)
 {
     return GetBerryInfo(berry)->stageDuration * 60;
 }
@@ -1156,18 +1169,18 @@ void EventObjectInteractionGetBerryTreeData(void)
 {
     u8 id;
     u8 berry;
-    u8 unk;
+    u8 localId;
     u8 group;
     u8 num;
 
     id = EventObjectGetBerryTreeId(gSelectedEventObject);
     berry = GetBerryTypeByBerryTreeId(id);
     ResetBerryTreeSparkleFlag(id);
-    unk = gSpecialVar_LastTalked;
+    localId = gSpecialVar_LastTalked;
     num = gSaveBlock1Ptr->location.mapNum;
     group = gSaveBlock1Ptr->location.mapGroup;
-    if (IsBerryTreeSparkling(unk, num, group))
-        gSpecialVar_0x8004 = 0xFF;
+    if (IsBerryTreeSparkling(localId, num, group))
+        gSpecialVar_0x8004 = BERRY_STAGE_SPARKLING;
     else
         gSpecialVar_0x8004 = GetStageByBerryTreeId(id);
     gSpecialVar_0x8005 = GetNumStagesWateredByBerryTreeId(id);
@@ -1216,7 +1229,7 @@ void EventObjectInteractionRemoveBerryTree(void)
     sub_8092EF0(gSpecialVar_LastTalked, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup);
 }
 
-u8 PlayerHasBerries(void)
+bool8 PlayerHasBerries(void)
 {
     return IsBagPocketNonEmpty(POCKET_BERRIES);
 }
@@ -1238,7 +1251,7 @@ void ResetBerryTreeSparkleFlags(void)
     bottom = top + 8;
     for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
-        if (gEventObjects[i].active && gEventObjects[i].movementType == 12)
+        if (gEventObjects[i].active && gEventObjects[i].movementType == MOVEMENT_TYPE_BERRY_TREE_GROWTH)
         {
             cam_left = gEventObjects[i].currentCoords.x;
             cam_top = gEventObjects[i].currentCoords.y;
diff --git a/src/bike.c b/src/bike.c
index 1fa4eb301..742b2a6bb 100644
--- a/src/bike.c
+++ b/src/bike.c
@@ -3,13 +3,13 @@
 #include "event_object_movement.h"
 #include "field_player_avatar.h"
 #include "fieldmap.h"
-#include "constants/flags.h"
 #include "global.fieldmap.h"
 #include "metatile_behavior.h"
 #include "overworld.h"
-#include "constants/songs.h"
 #include "sound.h"
+#include "constants/flags.h"
 #include "constants/map_types.h"
+#include "constants/songs.h"
 
 extern bool8 gBikeCyclingChallenge;
 extern u8 gBikeCollisions;
diff --git a/src/event_object_movement.c b/src/event_object_movement.c
index 201f5ff08..d97bdbcd1 100644
--- a/src/event_object_movement.c
+++ b/src/event_object_movement.c
@@ -1079,7 +1079,7 @@ static void ClearAllEventObjects(void)
 {
     u8 i;
 
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
         ClearEventObject(&gEventObjects[i]);
 }
 
@@ -1109,7 +1109,7 @@ static void CreateReflectionEffectSprites(void)
 u8 GetFirstInactiveEventObjectId(void)
 {
     u8 i;
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (!gEventObjects[i].active)
             break;
@@ -1130,7 +1130,7 @@ u8 GetEventObjectIdByLocalIdAndMap(u8 localId, u8 mapNum, u8 mapGroupId)
 bool8 TryGetEventObjectIdByLocalIdAndMap(u8 localId, u8 mapNum, u8 mapGroupId, u8 *eventObjectId)
 {
     *eventObjectId = GetEventObjectIdByLocalIdAndMap(localId, mapNum, mapGroupId);
-    if (*eventObjectId == NUM_EVENT_OBJECTS)
+    if (*eventObjectId == EVENT_OBJECTS_COUNT)
         return TRUE;
     else
         return FALSE;
@@ -1139,7 +1139,7 @@ bool8 TryGetEventObjectIdByLocalIdAndMap(u8 localId, u8 mapNum, u8 mapGroupId, u
 u8 GetEventObjectIdByXY(s16 x, s16 y)
 {
     u8 i;
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (gEventObjects[i].active && gEventObjects[i].currentCoords.x == x && gEventObjects[i].currentCoords.y == y)
             break;
@@ -1151,25 +1151,25 @@ u8 GetEventObjectIdByXY(s16 x, s16 y)
 static u8 GetEventObjectIdByLocalIdAndMapInternal(u8 localId, u8 mapNum, u8 mapGroupId)
 {
     u8 i;
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (gEventObjects[i].active && gEventObjects[i].localId == localId && gEventObjects[i].mapNum == mapNum && gEventObjects[i].mapGroup == mapGroupId)
             return i;
     }
 
-    return NUM_EVENT_OBJECTS;
+    return EVENT_OBJECTS_COUNT;
 }
 
 static u8 GetEventObjectIdByLocalId(u8 localId)
 {
     u8 i;
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (gEventObjects[i].active && gEventObjects[i].localId == localId)
             return i;
     }
 
-    return NUM_EVENT_OBJECTS;
+    return EVENT_OBJECTS_COUNT;
 }
 
 // This function has the same nonmatching quirk as in Ruby/Sapphire.
@@ -1184,7 +1184,7 @@ static u8 InitEventObjectStateFromTemplate(struct EventObjectTemplate *template,
     // mapNum and mapGroup are in the wrong registers (r7/r6 instead of r6/r7)
     if (GetAvailableEventObjectId(template->localId, mapNum, mapGroup, &eventObjectId))
     {
-        return NUM_EVENT_OBJECTS;
+        return EVENT_OBJECTS_COUNT;
     }
     eventObject = &gEventObjects[eventObjectId];
     ClearEventObject(eventObject);
@@ -1414,7 +1414,7 @@ u8 Unref_TryInitLocalEventObject(u8 localId)
             }
         }
     }
-    return NUM_EVENT_OBJECTS;
+    return EVENT_OBJECTS_COUNT;
 }
 
 static bool8 GetAvailableEventObjectId(u16 localId, u8 mapNum, u8 mapGroup, u8 *eventObjectId)
@@ -1426,14 +1426,14 @@ static bool8 GetAvailableEventObjectId(u16 localId, u8 mapNum, u8 mapGroup, u8 *
 {
     u8 i = 0;
 
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (!gEventObjects[i].active)
             break;
         if (gEventObjects[i].localId == localId && gEventObjects[i].mapNum == mapNum && gEventObjects[i].mapGroup == mapGroup)
             return TRUE;
     }
-    if (i >= NUM_EVENT_OBJECTS)
+    if (i >= EVENT_OBJECTS_COUNT)
         return TRUE;
     *eventObjectId = i;
     do
@@ -1441,7 +1441,7 @@ static bool8 GetAvailableEventObjectId(u16 localId, u8 mapNum, u8 mapGroup, u8 *
         if (gEventObjects[i].active && gEventObjects[i].localId == localId && gEventObjects[i].mapNum == mapNum && gEventObjects[i].mapGroup == mapGroup)
             return TRUE;
         i++;
-    } while (i < NUM_EVENT_OBJECTS);
+    } while (i < EVENT_OBJECTS_COUNT);
     return FALSE;
 }
 
@@ -1473,7 +1473,7 @@ void RemoveAllEventObjectsExceptPlayer(void)
 {
     u8 i;
 
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (i != gPlayerAvatar.eventObjectId)
             RemoveEventObject(&gEventObjects[i]);
@@ -1490,8 +1490,8 @@ static u8 TrySetupEventObjectSprite(struct EventObjectTemplate *eventObjectTempl
     u8 spriteId;
 
     eventObjectId = InitEventObjectStateFromTemplate(eventObjectTemplate, mapNum, mapGroup);
-    if (eventObjectId == NUM_EVENT_OBJECTS)
-        return NUM_EVENT_OBJECTS;
+    if (eventObjectId == EVENT_OBJECTS_COUNT)
+        return EVENT_OBJECTS_COUNT;
 
     eventObject = &gEventObjects[eventObjectId];
     graphicsInfo = GetEventObjectGraphicsInfo(eventObject->graphicsId);
@@ -1509,7 +1509,7 @@ static u8 TrySetupEventObjectSprite(struct EventObjectTemplate *eventObjectTempl
         paletteSlot -= 16;
         sub_808EAB0(graphicsInfo->paletteTag1, paletteSlot);
     }
-    if (eventObject->movementType == 0x4c)
+    if (eventObject->movementType == MOVEMENT_TYPE_INVISIBLE)
     {
         eventObject->invisible = TRUE;
     }
@@ -1518,7 +1518,7 @@ static u8 TrySetupEventObjectSprite(struct EventObjectTemplate *eventObjectTempl
     if (spriteId == MAX_SPRITES)
     {
         gEventObjects[eventObjectId].active = FALSE;
-        return NUM_EVENT_OBJECTS;
+        return EVENT_OBJECTS_COUNT;
     }
     sprite = &gSprites[spriteId];
     sub_8092FF0(eventObject->currentCoords.x + cameraX, eventObject->currentCoords.y + cameraY, &sprite->pos1.x, &sprite->pos1.y);
@@ -1554,9 +1554,9 @@ static u8 TrySpawnEventObject(struct EventObjectTemplate *eventObjectTemplate, u
     spriteFrameImage.size = graphicsInfo->size;
     spriteTemplate.images = &spriteFrameImage;
     eventObjectId = TrySetupEventObjectSprite(eventObjectTemplate, &spriteTemplate, mapNum, mapGroup, cameraX, cameraY);
-    if (eventObjectId == NUM_EVENT_OBJECTS)
+    if (eventObjectId == EVENT_OBJECTS_COUNT)
     {
-        return NUM_EVENT_OBJECTS;
+        return EVENT_OBJECTS_COUNT;
     }
     gSprites[gEventObjects[eventObjectId].spriteId].images = graphicsInfo->images;
     if (subspriteTables != NULL)
@@ -1604,7 +1604,7 @@ u8 show_sprite(u8 localId, u8 mapNum, u8 mapGroup)
     eventObjectTemplate = GetEventObjectTemplateByLocalIdAndMap(localId, mapNum, mapGroup);
     if (eventObjectTemplate == NULL)
     {
-        return NUM_EVENT_OBJECTS;
+        return EVENT_OBJECTS_COUNT;
     }
     GetEventObjectMovingCameraOffset(&cameraX, &cameraY);
     return TrySpawnEventObject(eventObjectTemplate, mapNum, mapGroup, cameraX, cameraY);
@@ -1759,7 +1759,7 @@ void RemoveEventObjectsOutsideView(void)
     bool8 isActiveLinkPlayer;
     struct EventObject *eventObject;
 
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         for (j = 0, isActiveLinkPlayer = FALSE; j < ARRAY_COUNT(gLinkPlayerEventObjects); j++)
         {
@@ -1778,21 +1778,16 @@ void RemoveEventObjectsOutsideView(void)
 
 static void RemoveEventObjectIfOutsideView(struct EventObject *eventObject)
 {
-    s16 left;
-    s16 right;
-    s16 top;
-    s16 bottom;
-
-    left = gSaveBlock1Ptr->pos.x - 2;
-    right = gSaveBlock1Ptr->pos.x + 17;
-    top = gSaveBlock1Ptr->pos.y;
-    bottom = gSaveBlock1Ptr->pos.y + 16;
+    s16 left =   gSaveBlock1Ptr->pos.x - 2;
+    s16 right =  gSaveBlock1Ptr->pos.x + 17;
+    s16 top =    gSaveBlock1Ptr->pos.y;
+    s16 bottom = gSaveBlock1Ptr->pos.y + 16;
 
     if (eventObject->currentCoords.x >= left && eventObject->currentCoords.x <= right
-        && eventObject->currentCoords.y >= top && eventObject->currentCoords.y <= bottom)
+     && eventObject->currentCoords.y >= top && eventObject->currentCoords.y <= bottom)
         return;
     if (eventObject->initialCoords.x >= left && eventObject->initialCoords.x <= right
-        && eventObject->initialCoords.y >= top && eventObject->initialCoords.y <= bottom)
+     && eventObject->initialCoords.y >= top && eventObject->initialCoords.y <= bottom)
         return;
     RemoveEventObject(eventObject);
 }
@@ -1802,7 +1797,7 @@ void sub_808E16C(s16 x, s16 y)
     u8 i;
 
     ClearPlayerAvatarInfo();
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (gEventObjects[i].active)
         {
@@ -2060,7 +2055,7 @@ void sub_808E75C(s16 x, s16 y)
     struct EventObject *eventObject;
 
     eventObjectId = GetEventObjectIdByXY(x, y);
-    if (eventObjectId != NUM_EVENT_OBJECTS)
+    if (eventObjectId != EVENT_OBJECTS_COUNT)
     {
         eventObject = &gEventObjects[eventObjectId];
         eventObject->triggerGroundEffectsOnMove = TRUE;
@@ -2283,7 +2278,7 @@ void UpdateEventObjectCoordsForCameraUpdate(void)
     {
         dx = gCamera.x;
         dy = gCamera.y;
-        for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+        for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
         {
             if (gEventObjects[i].active)
             {
@@ -2301,7 +2296,7 @@ void UpdateEventObjectCoordsForCameraUpdate(void)
 u8 GetEventObjectIdByXYZ(u16 x, u16 y, u8 z)
 {
     u8 i;
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         if (gEventObjects[i].active)
         {
@@ -2311,7 +2306,7 @@ u8 GetEventObjectIdByXYZ(u16 x, u16 y, u8 z)
             }
         }
     }
-    return NUM_EVENT_OBJECTS;
+    return EVENT_OBJECTS_COUNT;
 }
 
 static bool8 EventObjectDoesZCoordMatch(struct EventObject *eventObject, u8 z)
@@ -4952,7 +4947,7 @@ static bool8 DoesObjectCollideWithObjectAt(struct EventObject *eventObject, s16
     u8 i;
     struct EventObject *curObject;
 
-    for (i = 0; i < NUM_EVENT_OBJECTS; i++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i++)
     {
         curObject = &gEventObjects[i];
         if (curObject->active && curObject != eventObject)
@@ -5333,7 +5328,7 @@ void npc_apply_direction(struct EventObject *eventObject, struct Sprite *sprite,
     ShiftEventObjectCoords(eventObject, x, y);
     oamt_npc_ministep_reset(sprite, direction, speed);
     sprite->animPaused = FALSE;
-    if (gLockedAnimEventObjects != NULL && FindLockedEventObjectIndex(eventObject) != NUM_EVENT_OBJECTS)
+    if (gLockedAnimEventObjects != NULL && FindLockedEventObjectIndex(eventObject) != EVENT_OBJECTS_COUNT)
     {
         sprite->animPaused = TRUE;
     }
diff --git a/src/field_specials.c b/src/field_specials.c
index a2bd567d0..c9feeabda 100644
--- a/src/field_specials.c
+++ b/src/field_specials.c
@@ -595,7 +595,7 @@ static void LoadLinkPartnerEventObjectSpritePalette(u8 graphicsId, u8 localEvent
         graphicsId == EVENT_OBJ_GFX_RIVAL_MAY_NORMAL)
     {
         u8 obj = GetEventObjectIdByLocalIdAndMap(localEventId, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup);
-        if (obj != NUM_EVENT_OBJECTS)
+        if (obj != EVENT_OBJECTS_COUNT)
         {
             u8 spriteId = gEventObjects[obj].spriteId;
             struct Sprite *sprite = &gSprites[spriteId];
diff --git a/src/fldeff_sweetscent.c b/src/fldeff_sweetscent.c
index f592ed532..ca95af382 100644
--- a/src/fldeff_sweetscent.c
+++ b/src/fldeff_sweetscent.c
@@ -1,6 +1,4 @@
 #include "global.h"
-#include "constants/rgb.h"
-#include "constants/songs.h"
 #include "event_data.h"
 #include "event_scripts.h"
 #include "field_effect.h"
@@ -14,22 +12,24 @@
 #include "sprite.h"
 #include "task.h"
 #include "wild_encounter.h"
+#include "constants/rgb.h"
+#include "constants/songs.h"
 
-void hm2_sweet_scent(void);
-void sub_8159F5C(void);
-void sub_8159FEC(u8 taskId);
-void sub_815A090(u8 taskId);
+static void FieldCallback_SweetScent(void);
+static void StartSweetScentFieldEffect(void);
+static void TrySweetScentEncounter(u8 taskId);
+static void FailSweetScentEncounter(u8 taskId);
 void sub_81BE6B8(void);
 void sub_81BE72C(void);
 
 bool8 SetUpFieldMove_SweetScent(void)
 {
     gFieldCallback2 = FieldCallback_PrepareFadeInFromMenu;
-    gPostMenuFieldCallback = hm2_sweet_scent;
+    gPostMenuFieldCallback = FieldCallback_SweetScent;
     return TRUE;
 }
 
-void hm2_sweet_scent(void)
+static void FieldCallback_SweetScent(void)
 {
     FieldEffectStart(FLDEFF_SWEET_SCENT);
     gFieldEffectArguments[0] = GetCursorSelectionMonId();
@@ -41,12 +41,12 @@ bool8 FldEff_SweetScent(void)
 
     sub_80AC3D0();
     taskId = oei_task_add();
-    gTasks[taskId].data[8] = (u32)sub_8159F5C >> 16;
-    gTasks[taskId].data[9] = (u32)sub_8159F5C;
+    gTasks[taskId].data[8] = (u32)StartSweetScentFieldEffect >> 16;
+    gTasks[taskId].data[9] = (u32)StartSweetScentFieldEffect;
     return FALSE;
 }
 
-void sub_8159F5C(void)
+static void StartSweetScentFieldEffect(void)
 {
     u8 taskId;
 
@@ -54,12 +54,12 @@ void sub_8159F5C(void)
     CpuFastSet(gPlttBufferUnfaded, gPaletteDecompressionBuffer, 0x100);
     CpuFastSet(gPlttBufferFaded, gPlttBufferUnfaded, 0x100);
     BeginNormalPaletteFade(~(1 << (gSprites[GetPlayerAvatarObjectId()].oam.paletteNum + 16)), 4, 0, 8, RGB_RED);
-    taskId = CreateTask(sub_8159FEC, 0);
+    taskId = CreateTask(TrySweetScentEncounter, 0);
     gTasks[taskId].data[0] = 0;
     FieldEffectActiveListRemove(FLDEFF_SWEET_SCENT);
 }
 
-void sub_8159FEC(u8 taskId)
+static void TrySweetScentEncounter(u8 taskId)
 {
     if (!gPaletteFade.active)
     {
@@ -74,7 +74,7 @@ void sub_8159FEC(u8 taskId)
             }
             else
             {
-                gTasks[taskId].func = sub_815A090;
+                gTasks[taskId].func = FailSweetScentEncounter;
                 BeginNormalPaletteFade(~(1 << (gSprites[GetPlayerAvatarObjectId()].oam.paletteNum + 16)), 4, 8, 0, RGB_RED);
                 sub_81BE6B8();
             }
@@ -86,7 +86,7 @@ void sub_8159FEC(u8 taskId)
     }
 }
 
-void sub_815A090(u8 taskId)
+static void FailSweetScentEncounter(u8 taskId)
 {
     if (!gPaletteFade.active)
     {
diff --git a/src/fldeff_teleport.c b/src/fldeff_teleport.c
index e82a26cd1..ebf9aa38a 100644
--- a/src/fldeff_teleport.c
+++ b/src/fldeff_teleport.c
@@ -1,5 +1,4 @@
 #include "global.h"
-#include "fldeff_teleport.h"
 #include "field_effect.h"
 #include "field_player_avatar.h"
 #include "party_menu.h"
@@ -7,18 +6,21 @@
 #include "rom6.h"
 #include "task.h"
 
+static void FieldCallback_Teleport(void);
+static void StartTeleportFieldEffect(void);
+
 bool8 SetUpFieldMove_Teleport(void)
 {
     if (Overworld_MapTypeAllowsTeleportAndFly(gMapHeader.mapType) == TRUE)
     {
         gFieldCallback2 = FieldCallback_PrepareFadeInFromMenu;
-        gPostMenuFieldCallback = hm_teleport_run_dp02scr;
+        gPostMenuFieldCallback = FieldCallback_Teleport;
         return TRUE;
     }
     return FALSE;
 }
 
-void hm_teleport_run_dp02scr(void)
+static void FieldCallback_Teleport(void)
 {
     Overworld_ResetStateAfterTeleport();
     FieldEffectStart(FLDEFF_USE_TELEPORT);
@@ -28,16 +30,14 @@ void hm_teleport_run_dp02scr(void)
 bool8 FldEff_UseTeleport(void)
 {
     u8 taskId = oei_task_add();
-    gTasks[taskId].data[8] = (u32)sub_817C94C >> 16;
-    gTasks[taskId].data[9] = (u32)sub_817C94C;
-    SetPlayerAvatarTransitionFlags(1);
+    gTasks[taskId].data[8] = (u32)StartTeleportFieldEffect >> 16;
+    gTasks[taskId].data[9] = (u32)StartTeleportFieldEffect;
+    SetPlayerAvatarTransitionFlags(PLAYER_AVATAR_FLAG_ON_FOOT);
     return FALSE;
 }
 
-void sub_817C94C(void)
+static void StartTeleportFieldEffect(void)
 {
     FieldEffectActiveListRemove(FLDEFF_USE_TELEPORT);
     CreateTeleportFieldEffectTask();
 }
-
-
diff --git a/src/hof_pc.c b/src/hof_pc.c
index 44b929337..2cea5540a 100644
--- a/src/hof_pc.c
+++ b/src/hof_pc.c
@@ -7,8 +7,6 @@
 #include "script_menu.h"
 #include "task.h"
 
-extern void (*gUnknown_0300485C)(void);
-
 extern void Overworld_PlaySpecialMapMusic(void);
 extern bool16 ScrSpecial_CreatePCMenu(void);
 extern void ScriptMenu_DisplayPCStartupPrompt(void);