diff --git a/asm/overlay_24.s b/asm/overlay_24.s
index de9d3b9a..402a11f6 100644
--- a/asm/overlay_24.s
+++ b/asm/overlay_24.s
@@ -3,349 +3,7 @@
 
 	.text
 
-	arm_func_start ov24_0238A140
-ov24_0238A140: ; 0x0238A140
-	stmdb sp!, {r3, lr}
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r2, [r0]
-	ldr r1, [r2]
-	cmp r1, #0x26
-	addls pc, pc, r1, lsl #2
-	b _0238A5B8
-_0238A15C: ; jump table
-	b _0238A1F8 ; case 0
-	b _0238A1F8 ; case 1
-	b _0238A5B8 ; case 2
-	b _0238A5B8 ; case 3
-	b _0238A2B4 ; case 4
-	b _0238A5B8 ; case 5
-	b _0238A5B8 ; case 6
-	b _0238A5B8 ; case 7
-	b _0238A5B8 ; case 8
-	b _0238A5B8 ; case 9
-	b _0238A5B8 ; case 10
-	b _0238A5B8 ; case 11
-	b _0238A5B8 ; case 12
-	b _0238A5B8 ; case 13
-	b _0238A26C ; case 14
-	b _0238A5B8 ; case 15
-	b _0238A5B8 ; case 16
-	b _0238A5B8 ; case 17
-	b _0238A5B8 ; case 18
-	b _0238A5B8 ; case 19
-	b _0238A22C ; case 20
-	b _0238A5B8 ; case 21
-	b _0238A5B8 ; case 22
-	b _0238A518 ; case 23
-	b _0238A55C ; case 24
-	b _0238A2C0 ; case 25
-	b _0238A334 ; case 26
-	b _0238A5B8 ; case 27
-	b _0238A5B8 ; case 28
-	b _0238A26C ; case 29
-	b _0238A4A8 ; case 30
-	b _0238A5B8 ; case 31
-	b _0238A3DC ; case 32
-	b _0238A3DC ; case 33
-	b _0238A43C ; case 34
-	b _0238A488 ; case 35
-	b _0238A424 ; case 36
-	b _0238A5B8 ; case 37
-	b _0238A598 ; case 38
-_0238A1F8:
-	add r0, r2, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl IsDialogueBoxActive
-	cmp r0, #0
-	bne _0238A604
-	mov r0, #0x1a
-	bl ov24_0238A610
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl ShowDialogueBox
-	b _0238A604
-_0238A22C:
-	bl ov11_02306C9C
-	cmp r0, #3
-	beq _0238A250
-	cmp r0, #4
-	bne _0238A604
-	bl ov11_02306C64
-	mov r0, #0x11
-	bl ov24_0238A610
-	b _0238A604
-_0238A250:
-	bl ov11_02306C64
-	ldr r1, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r1, [r1]
-	str r0, [r1, #0x1e8]
-	mov r0, #0x26
-	bl ov24_0238A610
-	b _0238A604
-_0238A26C:
-	add r0, r2, #0x200
-	ldrsb r0, [r0, #0x8f]
-	bl GetSimpleMenuResult__0202B870
-	cmp r0, #1
-	beq _0238A2A4
-	cmp r0, #4
-	beq _0238A294
-	cmp r0, #5
-	beq _0238A2A4
-	b _0238A604
-_0238A294:
-	bl ov24_0238C47C
-	mov r0, #0x13
-	bl ov24_0238A610
-	b _0238A604
-_0238A2A4:
-	bl ov24_0238C47C
-	mov r0, #0x11
-	bl ov24_0238A610
-	b _0238A604
-_0238A2B4:
-	bl ov11_022DC504
-	mov r0, #3
-	ldmia sp!, {r3, pc}
-_0238A2C0:
-	bl ov11_0230D220
-	cmp r0, #0
-	bne _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl IsDialogueBoxActive
-	cmp r0, #0
-	bne _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl ShowDialogueBox
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mov r2, #0x27
-	ldr r1, [r0]
-	str r2, [r1]
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl sub_0202F2C4
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8d]
-	bl HidePortraitBox
-	b _0238A604
-_0238A334:
-	add r0, r2, #0x200
-	ldrsb r0, [r0, #0x8f]
-	bl GetSimpleMenuResult__0202B870
-	cmp r0, #1
-	ldrne r1, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldrne r1, [r1]
-	strne r0, [r1, #0x1c]
-	cmp r0, #1
-	beq _0238A3CC
-	cmp r0, #6
-	beq _0238A3BC
-	cmp r0, #7
-	bne _0238A604
-	bl ov24_0238C47C
-	bl GetEggHatchTimer
-	cmp r0, #0
-	beq _0238A38C
-	cmp r0, #1
-	beq _0238A398
-	cmp r0, #2
-	beq _0238A3A4
-	b _0238A3B0
-_0238A38C:
-	mov r0, #9
-	bl ov24_0238A610
-	b _0238A604
-_0238A398:
-	mov r0, #7
-	bl ov24_0238A610
-	b _0238A604
-_0238A3A4:
-	mov r0, #6
-	bl ov24_0238A610
-	b _0238A604
-_0238A3B0:
-	mov r0, #5
-	bl ov24_0238A610
-	b _0238A604
-_0238A3BC:
-	bl ov24_0238C47C
-	mov r0, #2
-	bl ov24_0238A610
-	b _0238A604
-_0238A3CC:
-	bl ov24_0238C47C
-	mov r0, #3
-	bl ov24_0238A610
-	b _0238A604
-_0238A3DC:
-	bl GetKeyboardStatus
-	cmp r0, #3
-	bne _0238A604
-	bl GetKeyboardStringResult
-	ldr r2, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mov r1, r0
-	ldr r0, [r2]
-	add r0, r0, #0x42
-	bl StrcpySimple
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mov r2, #0x10
-	ldr r1, [r0]
-	add r0, r1, #0x22
-	add r1, r1, #0x42
-	bl StrncpySimpleNoPadSafe
-	mov r0, #0x24
-	bl ov24_0238A610
-	b _0238A604
-_0238A424:
-	bl sub_02037468
-	cmp r0, #0
-	beq _0238A604
-	mov r0, #0x22
-	bl ov24_0238A610
-	b _0238A604
-_0238A43C:
-	bl sub_0203931C
-	cmp r0, #0
-	bne _0238A464
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mov r2, #0x10
-	ldr r1, [r0]
-	mov r0, #0x23
-	str r2, [r1, #4]
-	bl ov24_0238A610
-	b _0238A604
-_0238A464:
-	cmp r0, #1
-	bne _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mov r2, #0x21
-	ldr r1, [r0]
-	mov r0, #0x23
-	str r2, [r1, #4]
-	bl ov24_0238A610
-	b _0238A604
-_0238A488:
-	bl sub_02039218
-	cmp r0, #0
-	beq _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	ldr r0, [r0, #4]
-	bl ov24_0238A610
-	b _0238A604
-_0238A4A8:
-	ldr r1, [r2, #0xc]
-	add r1, r1, #1
-	str r1, [r2, #0xc]
-	ldr r1, [r0]
-	ldr r0, [r1, #0xc]
-	cmp r0, #1
-	beq _0238A4D8
-	cmp r0, #2
-	beq _0238A604
-	cmp r0, #3
-	beq _0238A4FC
-	b _0238A604
-_0238A4D8:
-	add r0, r1, #0x200
-	ldrsb r0, [r0, #0x8e]
-	bl sub_0202836C
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8e]
-	bl CloseCollectionMenu
-	b _0238A604
-_0238A4FC:
-	ldr r0, [r1, #8]
-	bl ov24_0238A610
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mov r1, #0
-	ldr r0, [r0]
-	str r1, [r0, #0xc]
-	b _0238A604
-_0238A518:
-	add r0, r2, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl IsDialogueBoxActive
-	cmp r0, #0
-	bne _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl CloseDialogueBox
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	mvn r2, #1
-	ldr r1, [r0]
-	mov r0, #0x18
-	strb r2, [r1, #0x28c]
-	bl ov24_0238A610
-	b _0238A604
-_0238A55C:
-	bl sub_0203D538
-	mvn r1, #0
-	cmp r0, r1
-	beq _0238A578
-	cmp r0, #1
-	beq _0238A588
-	b _0238A604
-_0238A578:
-	bl FreeMissionRewardStructMain
-	mov r0, #4
-	bl ov24_0238A610
-	b _0238A604
-_0238A588:
-	bl FreeMissionRewardStructMain
-	mov r0, #4
-	bl ov24_0238A610
-	b _0238A604
-_0238A598:
-	ldr r1, [r2, #0xc]
-	sub r0, r1, #1
-	str r0, [r2, #0xc]
-	cmp r1, #0
-	bne _0238A604
-	mov r0, #0x1f
-	bl ov24_0238A610
-	b _0238A604
-_0238A5B8:
-	bl ov11_0230D220
-	cmp r0, #0
-	bne _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl IsDialogueBoxActive
-	cmp r0, #0
-	bne _0238A604
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	add r0, r0, #0x200
-	ldrsb r0, [r0, #0x8c]
-	bl ShowDialogueBox
-	ldr r0, _0238A60C ; =OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	ldr r0, [r0]
-	ldr r0, [r0, #8]
-	bl ov24_0238A610
-_0238A604:
-	mov r0, #0
-	ldmia sp!, {r3, pc}
-	.align 2, 0
-_0238A60C: .word OVERLAY24_UNKNOWN_POINTER__NA_238C600
-	arm_func_end ov24_0238A140
+    .public ov24_0238A140
 
 	arm_func_start ov24_0238A610
 ov24_0238A610: ; 0x0238A610
diff --git a/include/overlay_24.h b/include/overlay_24.h
new file mode 100644
index 00000000..e22e19ea
--- /dev/null
+++ b/include/overlay_24.h
@@ -0,0 +1,28 @@
+#ifndef PMD_SKY_OVERLAY_24_H
+#define PMD_SKY_OVERLAY_24_H
+
+struct overlay_24 {
+    s32 unk0; // state
+    s32 unk4;
+    s32 unk8;
+    s32 unkC;
+    u8 fill10[0x1C - 0x10];
+    s32 unk1C;
+    u8 fill20[0x22 - 0x20];
+    u8 unk22[0x20];
+    u8 unk42[0x20];
+    u8 fill46[0x1E8 - 0x62];
+    s32 unk1E8;
+    u8 fill1EC[0x28C - 0x1EC];
+    s8 unk28C; // Dialogue Box
+    s8 unk28D;
+    s8 unk28E;
+    s8 unk28F;
+    
+};
+    
+extern struct overlay_24* OVERLAY24_UNKNOWN_POINTER__NA_238C600;
+
+extern s32 ov24_0238A140(void);
+
+#endif /* ifndef PMD_SKY_OVERLAY_24_H */
diff --git a/main.lsf b/main.lsf
index 6de52d4a..af0d19d6 100644
--- a/main.lsf
+++ b/main.lsf
@@ -512,6 +512,7 @@ Overlay OVY_23
 Overlay OVY_24
 {
 	After OVY_11
+	Object src/overlay_24_init.o
 	Object asm/overlay_24.o
 }
 Overlay OVY_25
diff --git a/src/overlay_24_init.c b/src/overlay_24_init.c
new file mode 100644
index 00000000..7991efe5
--- /dev/null
+++ b/src/overlay_24_init.c
@@ -0,0 +1,227 @@
+#include "overlay_24.h"
+
+extern void CloseCollectionMenu(s8);                          
+extern void CloseDialogueBox(s8);                             
+extern void FreeMissionRewardStructMain();                    
+extern s32 GetEggHatchTimer();                             
+extern s32 GetKeyboardStatus();                            
+extern const u8 *GetKeyboardStringResult();                      
+extern s32 GetSimpleMenuResult__0202B870(s8);              
+extern void HidePortraitBox(s8);                              
+extern s32 IsDialogueBoxActive(s8);                        
+extern void ShowDialogueBox(s8);                              
+extern void StrcpySimple(unsigned char* dest, const unsigned char* src);                         
+extern void StrncpySimpleNoPadSafe(u8* dest, const u8* src, u32 n);          
+extern void ov11_022DC504();                                  
+extern s32 ov11_02306C64();                                
+extern s32 ov11_02306C9C();                                
+extern s32 ov11_0230D220();                                
+extern void ov24_0238A610(s32);                               
+extern void ov24_0238C47C();                                  
+extern void sub_0202836C(s8);                                 
+extern void sub_0202F2C4(s8);                                 
+extern s32 sub_02037468();                                 
+extern s32 sub_02039218();                                 
+extern s32 sub_0203931C();                                 
+extern s32 sub_0203D538();                                 
+
+
+s32 ov24_0238A140(void)
+{
+    s32 menu_result;
+    s32 temp_r0_5;
+    s32 temp_r1_2;
+
+    switch (OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk0) 
+    {                              
+        case 0:                                         
+        case 1:                                         
+            if (IsDialogueBoxActive(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C) == 0) {
+                ov24_0238A610(0x1A);
+                ShowDialogueBox(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C);
+            }
+            
+            break;
+        case 20:                                        
+            switch(ov11_02306C9C())
+            {
+                case 4:
+                    ov11_02306C64();
+                    ov24_0238A610(0x11);
+                    break;
+                case 3:
+                    OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk1E8 = ov11_02306C64();
+                    ov24_0238A610(0x26);
+                    break;
+            }
+            
+            break;
+        case 14:                                        
+        case 29:                                        
+            switch (GetSimpleMenuResult__0202B870(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28F)) {                        
+            case 4:                                     
+                ov24_0238C47C();
+                ov24_0238A610(0x13);
+                break;
+            case 1:                                     
+            case 5:                                     
+                ov24_0238C47C();
+                ov24_0238A610(0x11);
+                break;
+            }
+            break;
+        case 4:                                         
+            ov11_022DC504();
+            return 3;
+        case 25:                                        
+            if ((ov11_0230D220() == 0) && (IsDialogueBoxActive(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C) == 0)) {
+                ShowDialogueBox(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C);
+                OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk0 = 0x27;
+                sub_0202F2C4(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C);
+                HidePortraitBox(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28D);
+            }
+            
+            break;
+        case 26:                                        
+            menu_result = GetSimpleMenuResult__0202B870(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28F);
+            if (menu_result != 1) {
+                OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk1C = menu_result;
+            }
+            switch (menu_result) {                        
+                case 7:                                     
+                    ov24_0238C47C();
+                    switch (GetEggHatchTimer()) {                    
+                        case 0:                                 
+                            ov24_0238A610(9);
+                            break;
+                        case 1:                                 
+                            ov24_0238A610(7);
+                            break;
+                        case 2:                                 
+                            ov24_0238A610(6);
+                            break;
+                        default:                                
+                            ov24_0238A610(5);
+                            break;
+                    }
+                    break;
+                case 6:                                     
+                    ov24_0238C47C();
+                    ov24_0238A610(2);
+                    break;
+                case 1:                                     
+                    ov24_0238C47C();
+                    ov24_0238A610(3);
+                    break;
+            }
+            break;
+        case 32:                                        
+        case 33:                                        
+            if (GetKeyboardStatus() == 3) {
+                StrcpySimple(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk42, GetKeyboardStringResult());
+                StrncpySimpleNoPadSafe(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk22, OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk42, 0x10);
+                ov24_0238A610(0x24);
+            }
+            
+            break;
+        case 36:                                        
+            if (sub_02037468() != 0) {
+                ov24_0238A610(0x22);
+            }
+            
+            break;
+        case 34:                                        
+            temp_r0_5 = sub_0203931C();
+            if (temp_r0_5 == 0) {
+                OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk4 = 0x10;
+                ov24_0238A610(0x23);
+            } else if (temp_r0_5 == 1) {
+                OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk4 = 0x21;
+                ov24_0238A610(0x23);
+            }
+            
+            break;
+        case 35:                                        
+            if (sub_02039218() != 0) {
+                ov24_0238A610(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk4);
+            }
+            
+            break;
+        case 30:                                        
+            OVERLAY24_UNKNOWN_POINTER__NA_238C600->unkC++;
+            switch (OVERLAY24_UNKNOWN_POINTER__NA_238C600->unkC) 
+            {                        
+                case 2:                                     
+                    break;
+                case 1:                                     
+                    sub_0202836C(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28E);
+                    CloseCollectionMenu(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28E);
+                    break;
+                case 3:                                     
+                    ov24_0238A610(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk8);
+                    OVERLAY24_UNKNOWN_POINTER__NA_238C600->unkC = 0;
+                    break;
+            }
+            
+            break;
+        case 23:                                        
+            if (IsDialogueBoxActive(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C) == 0) {
+                CloseDialogueBox(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C);
+                OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C = -2;
+                ov24_0238A610(0x18);
+            }
+            
+            break;
+        case 24:                                        
+            switch (sub_0203D538()) 
+            {                        
+                case -1:                                    
+                    FreeMissionRewardStructMain();
+                    ov24_0238A610(4);
+                    break;
+                case 1:                                     
+                    FreeMissionRewardStructMain();
+                    ov24_0238A610(4);
+                    break;
+            }
+            
+            break;
+        case 38:                                        
+            temp_r1_2 = OVERLAY24_UNKNOWN_POINTER__NA_238C600->unkC;
+            OVERLAY24_UNKNOWN_POINTER__NA_238C600->unkC--;
+            if (temp_r1_2 == 0) {
+                ov24_0238A610(0x1F);
+            }
+            break;
+        default:                                        
+        case 2:                                         
+        case 3:                                         
+        case 5:                                         
+        case 6:                                         
+        case 7:                                         
+        case 8:                                         
+        case 9:                                         
+        case 10:                                        
+        case 11:                                        
+        case 12:                                        
+        case 13:                                        
+        case 15:                                        
+        case 16:                                        
+        case 17:                                        
+        case 18:                                        
+        case 19:                                        
+        case 21:                                        
+        case 22:                                        
+        case 27:                                        
+        case 28:                                        
+        case 31:                                        
+        case 37:                                        
+            if ((ov11_0230D220() == 0) && (IsDialogueBoxActive(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C) == 0)) {
+                ShowDialogueBox(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk28C);
+                ov24_0238A610(OVERLAY24_UNKNOWN_POINTER__NA_238C600->unk8);
+            }
+            break;
+            
+    }
+    return 0;
+}