diff --git a/asm/region_map.s b/asm/region_map.s
index ff3696fc2..ebbda7b9b 100644
--- a/asm/region_map.s
+++ b/asm/region_map.s
@@ -5,141 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8124AD4
-sub_8124AD4: @ 8124AD4
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0x1C
-	ldr r0, =0x0000086f
-	str r0, [sp, 0xC]
-	movs r1, 0
-	mov r9, r1
-	mov r2, sp
-	adds r2, 0x6
-	str r2, [sp, 0x14]
-	mov r3, sp
-	adds r3, 0xA
-	str r3, [sp, 0x18]
-	mov r0, sp
-	adds r0, 0x8
-	str r0, [sp, 0x10]
-	add r1, sp, 0x4
-	mov r10, r1
-_08124AFE:
-	ldr r2, [sp, 0x18]
-	str r2, [sp]
-	mov r0, r9
-	add r1, sp, 0x4
-	mov r2, sp
-	adds r2, 0x6
-	ldr r3, [sp, 0x10]
-	bl sub_8124630
-	mov r3, r10
-	ldrh r0, [r3]
-	adds r0, 0x1
-	lsls r0, 3
-	adds r0, 0x4
-	strh r0, [r3]
-	mov r1, sp
-	ldrh r0, [r1, 0x6]
-	adds r0, 0x2
-	lsls r0, 3
-	adds r0, 0x4
-	strh r0, [r1, 0x6]
-	ldr r2, [sp, 0x10]
-	ldrh r0, [r2]
-	cmp r0, 0x2
-	bne _08124B38
-	movs r7, 0x1
-	b _08124B44
-	.pool
-_08124B38:
-	ldr r3, [sp, 0x18]
-	ldrh r0, [r3]
-	movs r7, 0
-	cmp r0, 0x2
-	bne _08124B44
-	movs r7, 0x2
-_08124B44:
-	mov r0, r10
-	movs r2, 0
-	ldrsh r1, [r0, r2]
-	ldr r3, [sp, 0x14]
-	movs r0, 0
-	ldrsh r2, [r3, r0]
-	ldr r0, =gUnknown_085A1F7C
-	movs r3, 0xA
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x40
-	beq _08124BB8
-	ldr r1, =gSprites
-	mov r8, r1
-	lsls r4, r5, 4
-	adds r0, r4, r5
-	lsls r6, r0, 2
-	adds r2, r6, r1
-	lsls r3, r7, 6
-	ldrb r1, [r2, 0x1]
-	movs r0, 0x3F
-	ands r0, r1
-	orrs r0, r3
-	strb r0, [r2, 0x1]
-	ldr r0, [sp, 0xC]
-	bl FlagGet
-	lsls r0, 24
-	cmp r0, 0
-	beq _08124B9C
-	mov r0, r8
-	adds r0, 0x1C
-	adds r0, r6, r0
-	ldr r1, =sub_8124CBC
-	str r1, [r0]
-	b _08124BA2
-	.pool
-_08124B9C:
-	adds r0, r7, 0x3
-	lsls r0, 16
-	lsrs r7, r0, 16
-_08124BA2:
-	adds r4, r5
-	lsls r4, 2
-	ldr r0, =gSprites
-	adds r4, r0
-	lsls r1, r7, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl StartSpriteAnim
-	mov r2, r9
-	strh r2, [r4, 0x2E]
-_08124BB8:
-	ldr r0, [sp, 0xC]
-	adds r0, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-	str r0, [sp, 0xC]
-	mov r0, r9
-	adds r0, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-	mov r9, r0
-	cmp r0, 0xF
-	bls _08124AFE
-	add sp, 0x1C
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8124AD4
-
 	thumb_func_start sub_8124BE4
 sub_8124BE4: @ 8124BE4
 	push {r4-r7,lr}
diff --git a/src/region_map.c b/src/region_map.c
index 07ddd7477..484f60347 100644
--- a/src/region_map.c
+++ b/src/region_map.c
@@ -76,13 +76,14 @@ static void UnhideRegionMapPlayerIcon(void);
 static void RegionMapPlayerIconSpriteCallback_Zoomed(struct Sprite *sprite);
 static void RegionMapPlayerIconSpriteCallback_Full(struct Sprite *sprite);
 static void RegionMapPlayerIconSpriteCallback(struct Sprite *sprite);
-void sub_81248C0(void);
-void sub_81248D4(void);
-void sub_81248F4(void func(void));
+static void sub_81248C0(void);
+static void sub_81248D4(void);
+void sub_81248F4(void callback(void));
 void sub_8124904(void);
-void sub_8124A70(void);
-void sub_8124AD4(void);
+static void sub_8124A70(void);
+static void sub_8124AD4(void);
 void sub_8124BE4(void);
+void sub_8124CBC(struct Sprite *sprite);
 void sub_8124D14(void);
 
 // .rodata
@@ -120,6 +121,7 @@ extern const struct {
     u16 flag;
 } gUnknown_085A1EDC[];
 extern const struct SpritePalette gUnknown_085A1F10;
+extern const struct SpriteTemplate gUnknown_085A1F7C;
 
 // .text
 
@@ -1385,14 +1387,14 @@ void MCB2_FlyMap(void)
     }
 }
 
-void sub_81248C0(void)
+static void sub_81248C0(void)
 {
     LoadOam();
     ProcessSpriteCopyRequests();
     TransferPlttBuffer();
 }
 
-void sub_81248D4(void)
+static void sub_81248D4(void)
 {
     gUnknown_0203A148->unk_000();
     AnimateSprites();
@@ -1465,7 +1467,7 @@ void sub_8124904(void)
 }
 
 
-void sub_8124A70(void)
+static void sub_8124A70(void)
 {
     struct SpriteSheet sheet;
 
@@ -1478,3 +1480,51 @@ void sub_8124A70(void)
     sub_8124AD4();
     sub_8124BE4();
 }
+
+static void sub_8124AD4(void)
+{
+    u16 canFlyFlag;
+    u16 i;
+    u16 x;
+    u16 y;
+    u16 width;
+    u16 height;
+    u16 shape;
+    u8 spriteId;
+
+    canFlyFlag = FLAG_VISITED_LITTLEROOT_TOWN;
+    for (i = 0; i < 16; i ++)
+    {
+        sub_8124630(i, &x, &y, &width, &height);
+        x = (x + 1) * 8 + 4;
+        y = (y + 2) * 8 + 4;
+        if (width == 2)
+        {
+            shape = ST_OAM_H_RECTANGLE;
+        }
+        else if (height == 2)
+        {
+            shape = ST_OAM_V_RECTANGLE;
+        }
+        else
+        {
+            shape = ST_OAM_SQUARE;
+        }
+        spriteId = CreateSprite(&gUnknown_085A1F7C, x, y, 10);
+        if (spriteId != MAX_SPRITES)
+        {
+            gSprites[spriteId].oam.shape = shape;
+            if (FlagGet(canFlyFlag))
+            {
+                gSprites[spriteId].callback = sub_8124CBC;
+            }
+            else
+            {
+                shape += 3;
+            }
+            StartSpriteAnim(&gSprites[spriteId], shape);
+            gSprites[spriteId].data0 = i;
+        }
+        canFlyFlag ++;
+    }
+}