diff --git a/asm/code_0801C85C.s b/asm/code_0801C85C.s
index 0c145b51..e4015df8 100644
--- a/asm/code_0801C85C.s
+++ b/asm/code_0801C85C.s
@@ -575,7 +575,7 @@ sub_0801CC80: @ 0x0801CC80
 	adds r0, r0, r1
 	ldrb r4, [r0]
 	adds r0, r4, #0
-	bl sub_080544C8
+	bl ItemIsBottle
 	cmp r0, #0
 	beq _0801CCA8
 	adds r0, r5, r4
diff --git a/asm/code_080526F8.s b/asm/code_080526F8.s
index 52e84d20..ec44266e 100644
--- a/asm/code_080526F8.s
+++ b/asm/code_080526F8.s
@@ -3279,7 +3279,7 @@ _08054014:
 	mov r8, r2
 _08054018:
 	adds r0, r6, #0
-	bl sub_080544C8
+	bl ItemIsBottle
 	cmp r0, #0
 	bne _08054034
 	adds r0, r6, #0
diff --git a/asm/code_080732D0.s b/asm/code_080732D0.s
index a2e22468..6b1dde5b 100644
--- a/asm/code_080732D0.s
+++ b/asm/code_080732D0.s
@@ -2323,7 +2323,7 @@ sub_0807441C: @ 0x0807441C
 	adds r4, r6, #0
 	adds r4, #0xb4
 	ldrb r0, [r4]
-	bl sub_0805449C
+	bl ItemIsSword
 	cmp r0, #0
 	beq _08074448
 	ldrb r0, [r4]
diff --git a/asm/code_08077B98.s b/asm/code_08077B98.s
index 75eb2a4b..972fafe0 100644
--- a/asm/code_08077B98.s
+++ b/asm/code_08077B98.s
@@ -29,13 +29,13 @@ sub_08078008: @ 0x08078008
 	adds r5, r6, #0
 	adds r5, #0xb4
 	ldrb r0, [r5]
-	bl sub_0805449C
+	bl ItemIsSword
 	cmp r0, #0
 	bne _0807802C
 	adds r5, r6, #0
 	adds r5, #0xb5
 	ldrb r0, [r5]
-	bl sub_0805449C
+	bl ItemIsSword
 	movs r2, #0
 	cmp r0, #0
 	beq _0807802E
diff --git a/asm/code_08078778.s b/asm/code_08078778.s
index 0905212a..fb676371 100644
--- a/asm/code_08078778.s
+++ b/asm/code_08078778.s
@@ -3327,13 +3327,13 @@ sub_0807A158: @ 0x0807A158
 	adds r0, r4, #0
 	adds r0, #0xb4
 	ldrb r0, [r0]
-	bl sub_0805449C
+	bl ItemIsSword
 	cmp r0, #0
 	bne _0807A17C
 	adds r0, r4, #0
 	adds r0, #0xb5
 	ldrb r0, [r0]
-	bl sub_0805449C
+	bl ItemIsSword
 	b _0807A17E
 	.align 2, 0
 _0807A178: .4byte gSave
diff --git a/asm/non_matching/itemPegasusBoots/sub_08076964.inc b/asm/non_matching/itemPegasusBoots/sub_08076964.inc
index ab565b3d..979d4f34 100644
--- a/asm/non_matching/itemPegasusBoots/sub_08076964.inc
+++ b/asm/non_matching/itemPegasusBoots/sub_08076964.inc
@@ -92,7 +92,7 @@ _080769CC:
 	adds r4, r6, #0
 	adds r4, #0xb4
 	ldrb r0, [r4]
-	bl sub_0805449C
+	bl ItemIsSword
 	cmp r0, #0
 	beq _08076A38
 	ldrb r1, [r4]
diff --git a/src/code_08018C58.c b/src/code_08018C58.c
index 14caf9cd..04d39a04 100644
--- a/src/code_08018C58.c
+++ b/src/code_08018C58.c
@@ -15,12 +15,10 @@ void CreateMinishEntrance(u32 tilePos) {
 }
 
 void sub_08018C58(u32 tilePos) {
-    u32 i = 0;
+    u32 i;
 
-    for (; i < 6;) {
+    for (i = 0; i < 6; i += 2, tilePos += 0x40) {
         SetTileType(0x260 + i, tilePos, 1);
         SetTileType(0x261 + i, tilePos + 1, 1);
-        i += 2;
-        tilePos += 0x40;
     }
 }
diff --git a/src/code_0805436C.c b/src/code_0805436C.c
index 2273aab3..c8a446c8 100644
--- a/src/code_0805436C.c
+++ b/src/code_0805436C.c
@@ -4,22 +4,14 @@
 #include "menu.h"
 #include "area.h"
 #include "utils.h"
-
-typedef struct {
-    u8 filler[0xa8];
-    Stats stats;
-} SaveFile;
+#include "structures.h"
+#include "save.h"
 
 typedef struct {
     u8 unk;
     u8 filler[7];
 } struct_080FD5B4;
 
-typedef struct {
-    u8 filler[0x2e];
-    u8 unk;
-} ScreenTransition;
-
 extern SaveFile gSave;
 extern struct_080FD5B4 gUnk_080FD5B4[];
 extern ScreenTransition gScreenTransition;
@@ -105,7 +97,7 @@ u32 SetBottleContents(u32 itemID, u32 bottleIndex) {
     return bottleIndex;
 }
 
-u32 sub_0805449C(u32 arg0) {
+u32 ItemIsSword(u32 arg0) {
     switch (arg0) {
         case 1:
         case 2:
@@ -118,8 +110,8 @@ u32 sub_0805449C(u32 arg0) {
     }
 }
 
-u32 sub_080544B4(u32 arg0) {
-    switch (arg0) {
+u32 ItemIsShield(u32 id) {
+    switch (id) {
         case 13:
         case 14:
             return 1;
@@ -128,8 +120,8 @@ u32 sub_080544B4(u32 arg0) {
     }
 }
 
-u32 sub_080544C8(u32 arg0) {
-    switch (arg0) {
+u32 ItemIsBottle(u32 id) {
+    switch (id) {
         case 28:
         case 29:
         case 30:
@@ -140,14 +132,14 @@ u32 sub_080544C8(u32 arg0) {
     }
 }
 
-u32 GetBottleContaining(u32 arg0) {
-    if (arg0 == gSave.stats.bottles[0]) {
+u32 GetBottleContaining(u32 id) {
+    if (id == gSave.stats.bottles[0]) {
         return 1;
-    } else if (arg0 == gSave.stats.bottles[1]) {
+    } else if (id == gSave.stats.bottles[1]) {
         return 2;
-    } else if (arg0 == gSave.stats.bottles[2]) {
+    } else if (id == gSave.stats.bottles[2]) {
         return 3;
-    } else if (arg0 == gSave.stats.bottles[3]) {
+    } else if (id == gSave.stats.bottles[3]) {
         return 4;
     } else {
         return 0;
@@ -160,7 +152,7 @@ NONMATCH("asm/non_matching/sub_08054524.inc", void sub_08054524(void)) {
 
     bVar1 = gArea.locationIndex;
     if (gArea.locationIndex == 0) {
-        bVar1 = gScreenTransition.unk;
+        bVar1 = gScreenTransition.field_0x24[0xa];
     }
     if (bVar1 > 0x16) {
         bVar1 = 0;
diff --git a/src/enemy/likeLike.c b/src/enemy/likeLike.c
index b6a5988f..6824d4eb 100644
--- a/src/enemy/likeLike.c
+++ b/src/enemy/likeLike.c
@@ -6,7 +6,7 @@
 #include "createObject.h"
 #include "functions.h"
 
-extern bool32 sub_080544B4(u32);
+extern bool32 ItemIsShield(u32);
 
 void sub_0802810C(Entity*);
 void sub_080281A0(Entity*);
@@ -241,11 +241,11 @@ void sub_080281A0(Entity* this) {
 bool32 sub_080281E0(u32 param_1) {
     bool32 ret = FALSE;
     if (GetInventoryValue(param_1) == 1) {
-        if (sub_080544B4(gSave.stats.itemOnA)) {
+        if (ItemIsShield(gSave.stats.itemOnA)) {
             gSave.stats.itemOnA = 0;
         }
 
-        if (sub_080544B4(gSave.stats.itemOnB)) {
+        if (ItemIsShield(gSave.stats.itemOnB)) {
             gSave.stats.itemOnB = 0;
         }
 
diff --git a/src/item/itemPegasusBoots.c b/src/item/itemPegasusBoots.c
index 9cd2ef72..54c3db73 100644
--- a/src/item/itemPegasusBoots.c
+++ b/src/item/itemPegasusBoots.c
@@ -17,7 +17,6 @@ void ItemPegasusBoots(ItemBehavior* this, u32 arg1) {
         gPlayerState.field_0x1d[1] = 0;
         gPlayerState.field_0xe = 0;
         sub_08077E78(this, arg1);
-
     } else {
         bVar1 = this->field_0x5[2] - 1;
         this->field_0x5[2] = bVar1;