diff --git a/asm/include/overlay_15.inc b/asm/include/overlay_15.inc
index 14cc17a7..e7389b64 100644
--- a/asm/include/overlay_15.inc
+++ b/asm/include/overlay_15.inc
@@ -1,9 +1,11 @@
 #pragma once
 .public AddMoneyCarried
 .public AddMoneyStored
+.public BANK_MAIN_MENU_ITEMS
+.public BANK_WINDOW_PARAMS_2
+.public BANK_WINDOW_PARAMS_3
+.public BANK_WINDOW_PARAMS_4
 .public CloseAdvancedTextBox
-.public CloseDialogueBox
-.public ClosePortraitBox
 .public CloseSimpleMenu
 .public CloseTextBox
 .public CreateAdvancedTextBox
@@ -12,19 +14,15 @@
 .public CreateSimpleMenuFromStringIds
 .public CreateTextBox
 .public Debug_Print0
-.public DrawTextInWindow
 .public GetMoneyCarried
 .public GetMoneyStored
 .public GetSimpleMenuResult
-.public HidePortraitBox
 .public InitPortraitParamsWithMonsterId
 .public InitPreprocessorArgs
 .public IsDialogueBoxActive
 .public MemAlloc
-.public MemFree
-.public ov11_022E6E68
+.public OVERLAY15_UNKNOWN_POINTER__NA_238B180
 .public PlaySeVolumeWrapper
-.public PreprocessStringFromId
 .public SetAdvancedTextBoxField0x1C2
 .public SetAdvancedTextBoxField0x1C4
 .public SetAdvancedTextBoxState5
@@ -33,14 +31,18 @@
 .public ShowDialogueBox
 .public ShowPortraitInPortraitBox
 .public ShowStringIdInDialogueBox
+.public ov15_0238AD78
+.public ov15_0238ADC4
+.public ov15_0238AE6C
+.public ov15_0238B0CC
+.public ov15_0238B0D4
+.public ov15_0238B0E0
+.public ov15_0238B0E8
+.public ov15_0238B0F4
+.public ov15_0238B10C
+.public ov15_0238B114
 .public sub_02017C80
-.public sub_02026268
-.public sub_02027B1C
-.public sub_0202836C
 .public sub_020288DC
-.public sub_0202F2C4
 .public sub_0202F954
 .public sub_020395CC
 .public sub_020396E4
-.public sub_02039B0C
-.public UpdateWindow
diff --git a/asm/include/overlay_15_0238ADC4.inc b/asm/include/overlay_15_0238ADC4.inc
new file mode 100644
index 00000000..97dbb2e8
--- /dev/null
+++ b/asm/include/overlay_15_0238ADC4.inc
@@ -0,0 +1,24 @@
+#pragma once
+.public CloseDialogueBox
+.public ClosePortraitBox
+.public Debug_Print0
+.public DrawTextInWindow
+.public GetMoneyCarried
+.public GetMoneyStored
+.public HidePortraitBox
+.public IsDialogueBoxActive
+.public MemFree
+.public OVERLAY15_UNKNOWN_POINTER__NA_238B180
+.public PreprocessStringFromId
+.public UpdateWindow
+.public ov11_022E6E68
+.public ov15_0238A140
+.public ov15_0238A234
+.public ov15_0238AD78
+.public ov15_0238B11C
+.public ov15_0238B12C
+.public ov15_0238B13C
+.public ov15_0238B150
+.public sub_02027B1C
+.public sub_0202836C
+.public sub_0202F2C4
diff --git a/asm/overlay_15.s b/asm/overlay_15.s
index ecd1c3cd..59ac19b2 100644
--- a/asm/overlay_15.s
+++ b/asm/overlay_15.s
@@ -990,327 +990,3 @@ _0238C2DC: .word 0x00003246
 _0238AD70: .word 0x00000382 + OV15_0238A4E8_OFFSET
 _0238AD74: .word ov15_0238B114
 	arm_func_end ov15_0238A4E8
-
-	arm_func_start ov15_0238AD78
-ov15_0238AD78: ; 0x0238AD78
-	stmdb sp!, {r3, lr}
-	cmp r0, #0
-#ifdef JAPAN
-	ldrne r0, _0238C32C ; =0x00003249
-#else
-	movne r0, #0x384
-#endif
-	ldr r1, _0238ADBC ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldreq r0, _0238ADC0 ; =0x00000385
-	ldr r1, [r1]
-	mov r0, r0, lsl #0x10
-	mov r3, r0, lsr #0x10
-	ldrsb r0, [r1, #0x68]
-	mov r1, #2
-	mov r2, #0
-	bl sub_02026268
-	ldr r0, _0238ADBC ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	add r0, r0, #0x54
-	bl sub_02039B0C
-	ldmia sp!, {r3, pc}
-	.align 2, 0
-#ifdef JAPAN
-_0238C32C: .word 0x00003249
-_0238ADBC: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
-_0238ADC0: .word 0x0000324A
-#else
-_0238ADBC: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
-_0238ADC0: .word 0x00000385
-#endif
-	arm_func_end ov15_0238AD78
-
-	arm_func_start ov15_0238ADC4
-ov15_0238ADC4: ; 0x0238ADC4
-	stmdb sp!, {r3, r4, lr}
-	sub sp, sp, #0x54
-	sub sp, sp, #0x400
-	mov r4, r0
-	bl sub_02027B1C
-	bl GetMoneyCarried
-	add ip, sp, #0x400
-	str r0, [sp, #0x428]
-	add ip, ip, #4
-	ldr r2, _0238AE64 ; =0x00000373
-	ldr r3, _0238AE68 ; =0x0000C402
-	add r0, sp, #4
-	mov r1, #0x100
-	str ip, [sp]
-	bl PreprocessStringFromId
-	add r3, sp, #4
-	mov r0, r4
-	mov r1, #8
-	mov r2, #6
-	bl DrawTextInWindow
-	bl GetMoneyStored
-	add r1, sp, #0x400
-	str r0, [sp, #0x428]
-	add r1, r1, #4
-	str r1, [sp]
-#ifdef JAPAN
-	ldr r2, _0238C3E0 ; =0x00003239
-	ldr r3, _0238AE68 ; =0x0000C402
-	add r0, sp, #4
-	mov r1, #0x100
-#else
-	ldr r3, _0238AE68 ; =0x0000C402
-	add r0, sp, #4
-	mov r1, #0x100
-	mov r2, #0x374
-#endif
-	bl PreprocessStringFromId
-	mov r0, r4
-	mov r1, #0x74
-	mov r2, #6
-	add r3, sp, #4
-	bl DrawTextInWindow
-	mov r0, r4
-	bl UpdateWindow
-	add sp, sp, #0x54
-	add sp, sp, #0x400
-	ldmia sp!, {r3, r4, pc}
-	.align 2, 0
-#ifdef JAPAN
-_0238AE64: .word 0x00003238
-_0238AE68: .word 0x0000C402
-_0238C3E0: .word 0x00003239
-#else
-_0238AE64: .word 0x00000373
-_0238AE68: .word 0x0000C402
-#endif
-	arm_func_end ov15_0238ADC4
-
-	arm_func_start ov15_0238AE6C
-ov15_0238AE6C: ; 0x0238AE6C
-	ldr r0, _0238AE80 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr ip, _0238AE84 ; =ov15_0238AD78
-	ldr r0, [r0]
-	ldrb r0, [r0, #0xd8]
-	bx ip
-	.align 2, 0
-_0238AE80: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
-_0238AE84: .word ov15_0238AD78
-	arm_func_end ov15_0238AE6C
-
-	arm_func_start ov15_0238AE88
-ov15_0238AE88: ; 0x0238AE88
-	stmdb sp!, {r3, lr}
-	bl ov15_0238A140
-	mov r0, #1
-	ldmia sp!, {r3, pc}
-	arm_func_end ov15_0238AE88
-
-	arm_func_start ov15_0238AE98
-ov15_0238AE98: ; 0x0238AE98
-	stmdb sp!, {r3, lr}
-	ldr r0, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	cmp r0, #0
-	ldmeqia sp!, {r3, pc}
-	ldrsb r1, [r0, #0x80]
-	mvn r0, #1
-	cmp r1, r0
-	beq _0238AEC4
-	ldr r0, _0238AF44 ; =ov15_0238B11C
-	bl Debug_Print0
-_0238AEC4:
-	ldr r1, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	mvn r0, #1
-	ldr r1, [r1]
-	ldrsb r1, [r1, #0x82]
-	cmp r1, r0
-	beq _0238AEE4
-	ldr r0, _0238AF48 ; =ov15_0238B12C
-	bl Debug_Print0
-_0238AEE4:
-	ldr r1, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	mvn r0, #1
-	ldr r1, [r1]
-	ldrsb r1, [r1, #0x83]
-	cmp r1, r0
-	beq _0238AF04
-	ldr r0, _0238AF4C ; =ov15_0238B13C
-	bl Debug_Print0
-_0238AF04:
-	ldr r1, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	mvn r0, #1
-	ldr r1, [r1]
-	ldrsb r1, [r1, #0x84]
-	cmp r1, r0
-	beq _0238AF24
-	ldr r0, _0238AF50 ; =ov15_0238B150
-	bl Debug_Print0
-_0238AF24:
-	ldr r0, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	bl MemFree
-	ldr r0, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	mov r1, #0
-	str r1, [r0]
-	ldmia sp!, {r3, pc}
-	.align 2, 0
-_0238AF40: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
-_0238AF44: .word ov15_0238B11C
-_0238AF48: .word ov15_0238B12C
-_0238AF4C: .word ov15_0238B13C
-_0238AF50: .word ov15_0238B150
-	arm_func_end ov15_0238AE98
-
-	arm_func_start ov15_0238AF54
-ov15_0238AF54: ; 0x0238AF54
-	stmdb sp!, {r3, lr}
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r1, [r0]
-	ldr r0, [r1]
-	cmp r0, #5
-	addls pc, pc, r0, lsl #2
-	b _0238B048
-_0238AF70: ; jump table
-	b _0238AF88 ; case 0
-	b _0238AF94 ; case 1
-	b _0238AFB0 ; case 2
-	b _0238B03C ; case 3
-	b _0238B048 ; case 4
-	b _0238AFF4 ; case 5
-_0238AF88:
-	mov r0, #1
-	str r0, [r1]
-	b _0238B048
-_0238AF94:
-	bl ov15_0238A234
-	cmp r0, #3
-	ldreq r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	moveq r1, #2
-	ldreq r0, [r0]
-	streq r1, [r0]
-	b _0238B048
-_0238AFB0:
-	ldrsb r0, [r1, #0x80]
-	bl IsDialogueBoxActive
-	cmp r0, #0
-	bne _0238B048
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	ldrsb r0, [r0, #0x81]
-	bl HidePortraitBox
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	ldrsb r0, [r0, #0x80]
-	bl sub_0202F2C4
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	mov r1, #5
-	ldr r0, [r0]
-	str r1, [r0]
-	b _0238B048
-_0238AFF4:
-	ldrsb r0, [r1, #0x80]
-	bl sub_0202836C
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	ldrsb r0, [r0, #0x81]
-	bl ClosePortraitBox
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	ldr r0, [r0]
-	ldrsb r0, [r0, #0x80]
-	bl CloseDialogueBox
-	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	mov r3, #3
-	ldr r2, [r0]
-	sub r1, r3, #5
-	str r3, [r2]
-	ldr r0, [r0]
-	strb r1, [r0, #0x80]
-	b _0238B048
-_0238B03C:
-	bl ov11_022E6E68
-	mov r0, #4
-	ldmia sp!, {r3, pc}
-_0238B048:
-	mov r0, #1
-	ldmia sp!, {r3, pc}
-	.align 2, 0
-_0238B050: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
-	arm_func_end ov15_0238AF54
-	; 0x0238B054
-
-	.global BANK_MAIN_MENU_ITEMS
-BANK_MAIN_MENU_ITEMS:
-#ifdef JAPAN
-#define OV15_DATA_OFFSET 0x2EC5
-#else
-#define OV15_DATA_OFFSET 0
-#endif
-	.word 0x36F + OV15_DATA_OFFSET
-	.byte 0x02, 0x00, 0x00, 0x00
-	.word 0x370 + OV15_DATA_OFFSET
-	.byte 0x03, 0x00, 0x00, 0x00
-	.word 0x371 + OV15_DATA_OFFSET
-	.byte 0x04, 0x00, 0x00, 0x00
-	.word 0x372 + OV15_DATA_OFFSET
-	.byte 0x01, 0x00, 0x00, 0x00
-	.byte 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x12, 0x1E, 0x05
-	.byte 0x00, 0xFD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	.global BANK_WINDOW_PARAMS_2
-BANK_WINDOW_PARAMS_2:
-	.byte 0x00, 0x00, 0x00, 0x00, 0x02, 0x03, 0x1C, 0x03
-	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	.global BANK_WINDOW_PARAMS_3
-BANK_WINDOW_PARAMS_3:
-	.byte 0x00, 0x00, 0x00, 0x00, 0x13, 0x08, 0x0B, 0x07
-	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	.global BANK_WINDOW_PARAMS_4
-BANK_WINDOW_PARAMS_4:
-	.byte 0x00, 0x00, 0x00, 0x00, 0x1E, 0x0F, 0x00, 0x00
-	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x0A, 0x05
-	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-#ifndef EUROPE
-	.global ov15_0238B0CC
-ov15_0238B0CC:
-	.byte 0x43, 0x61, 0x6E, 0x63, 0x65, 0x6C, 0x0A, 0x00
-#endif
-	.global ov15_0238B0D4
-ov15_0238B0D4:
-	.byte 0x52, 0x2D, 0x43, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00, 0x00
-	.global ov15_0238B0E0
-ov15_0238B0E0:
-	.byte 0x4D, 0x2D, 0x4F, 0x70
-	.byte 0x65, 0x6E, 0x0A, 0x00
-	.global ov15_0238B0E8
-ov15_0238B0E8:
-	.byte 0x53, 0x2D, 0x43, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00, 0x00
-	.global ov15_0238B0F4
-ov15_0238B0F4:
-	.byte 0x4D, 0x65, 0x6E, 0x75, 0x5F, 0x42, 0x61, 0x6E, 0x6B, 0x5F, 0x4D, 0x6F, 0x64, 0x65, 0x5F, 0x43
-	.byte 0x61, 0x6E, 0x63, 0x65, 0x6C, 0x0A, 0x00, 0x00
-	.global ov15_0238B10C
-ov15_0238B10C:
-	.byte 0x50, 0x2D, 0x4F, 0x70, 0x65, 0x6E, 0x0A, 0x00
-	.global ov15_0238B114
-ov15_0238B114:
-	.byte 0x47, 0x2D, 0x4F, 0x70, 0x65, 0x6E, 0x0A, 0x00
-	.global ov15_0238B11C
-ov15_0238B11C:
-	.byte 0x6D, 0x65, 0x73, 0x20, 0x6E, 0x6F, 0x74, 0x20
-	.byte 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00
-	.global ov15_0238B12C
-ov15_0238B12C:
-	.byte 0x73, 0x75, 0x62, 0x20, 0x6E, 0x6F, 0x74, 0x20
-	.byte 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00
-	.global ov15_0238B13C
-ov15_0238B13C:
-	.byte 0x73, 0x65, 0x6C, 0x65, 0x63, 0x74, 0x20, 0x6E
-	.byte 0x6F, 0x74, 0x20, 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00
-	.global ov15_0238B150
-ov15_0238B150:
-	.byte 0x49, 0x6E, 0x70, 0x75
-	.byte 0x74, 0x20, 0x6E, 0x6F, 0x74, 0x20, 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00, 0x00
-
-	.data
-	.global OVERLAY15_UNKNOWN_POINTER__NA_238B180
-OVERLAY15_UNKNOWN_POINTER__NA_238B180:
-	.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
diff --git a/asm/overlay_15_0238ADC4.s b/asm/overlay_15_0238ADC4.s
new file mode 100644
index 00000000..fa2e6d9b
--- /dev/null
+++ b/asm/overlay_15_0238ADC4.s
@@ -0,0 +1,294 @@
+	.include "asm/macros.inc"
+	.include "overlay_15_0238ADC4.inc"
+
+	.text
+
+	arm_func_start ov15_0238ADC4
+ov15_0238ADC4: ; 0x0238ADC4
+	stmdb sp!, {r3, r4, lr}
+	sub sp, sp, #0x54
+	sub sp, sp, #0x400
+	mov r4, r0
+	bl sub_02027B1C
+	bl GetMoneyCarried
+	add ip, sp, #0x400
+	str r0, [sp, #0x428]
+	add ip, ip, #4
+	ldr r2, _0238AE64 ; =0x00000373
+	ldr r3, _0238AE68 ; =0x0000C402
+	add r0, sp, #4
+	mov r1, #0x100
+	str ip, [sp]
+	bl PreprocessStringFromId
+	add r3, sp, #4
+	mov r0, r4
+	mov r1, #8
+	mov r2, #6
+	bl DrawTextInWindow
+	bl GetMoneyStored
+	add r1, sp, #0x400
+	str r0, [sp, #0x428]
+	add r1, r1, #4
+	str r1, [sp]
+#ifdef JAPAN
+	ldr r2, _0238C3E0 ; =0x00003239
+	ldr r3, _0238AE68 ; =0x0000C402
+	add r0, sp, #4
+	mov r1, #0x100
+#else
+	ldr r3, _0238AE68 ; =0x0000C402
+	add r0, sp, #4
+	mov r1, #0x100
+	mov r2, #0x374
+#endif
+	bl PreprocessStringFromId
+	mov r0, r4
+	mov r1, #0x74
+	mov r2, #6
+	add r3, sp, #4
+	bl DrawTextInWindow
+	mov r0, r4
+	bl UpdateWindow
+	add sp, sp, #0x54
+	add sp, sp, #0x400
+	ldmia sp!, {r3, r4, pc}
+	.align 2, 0
+#ifdef JAPAN
+_0238AE64: .word 0x00003238
+_0238AE68: .word 0x0000C402
+_0238C3E0: .word 0x00003239
+#else
+_0238AE64: .word 0x00000373
+_0238AE68: .word 0x0000C402
+#endif
+	arm_func_end ov15_0238ADC4
+
+	arm_func_start ov15_0238AE6C
+ov15_0238AE6C: ; 0x0238AE6C
+	ldr r0, _0238AE80 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr ip, _0238AE84 ; =ov15_0238AD78
+	ldr r0, [r0]
+	ldrb r0, [r0, #0xd8]
+	bx ip
+	.align 2, 0
+_0238AE80: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
+_0238AE84: .word ov15_0238AD78
+	arm_func_end ov15_0238AE6C
+
+	arm_func_start ov15_0238AE88
+ov15_0238AE88: ; 0x0238AE88
+	stmdb sp!, {r3, lr}
+	bl ov15_0238A140
+	mov r0, #1
+	ldmia sp!, {r3, pc}
+	arm_func_end ov15_0238AE88
+
+	arm_func_start ov15_0238AE98
+ov15_0238AE98: ; 0x0238AE98
+	stmdb sp!, {r3, lr}
+	ldr r0, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r0, [r0]
+	cmp r0, #0
+	ldmeqia sp!, {r3, pc}
+	ldrsb r1, [r0, #0x80]
+	mvn r0, #1
+	cmp r1, r0
+	beq _0238AEC4
+	ldr r0, _0238AF44 ; =ov15_0238B11C
+	bl Debug_Print0
+_0238AEC4:
+	ldr r1, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	mvn r0, #1
+	ldr r1, [r1]
+	ldrsb r1, [r1, #0x82]
+	cmp r1, r0
+	beq _0238AEE4
+	ldr r0, _0238AF48 ; =ov15_0238B12C
+	bl Debug_Print0
+_0238AEE4:
+	ldr r1, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	mvn r0, #1
+	ldr r1, [r1]
+	ldrsb r1, [r1, #0x83]
+	cmp r1, r0
+	beq _0238AF04
+	ldr r0, _0238AF4C ; =ov15_0238B13C
+	bl Debug_Print0
+_0238AF04:
+	ldr r1, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	mvn r0, #1
+	ldr r1, [r1]
+	ldrsb r1, [r1, #0x84]
+	cmp r1, r0
+	beq _0238AF24
+	ldr r0, _0238AF50 ; =ov15_0238B150
+	bl Debug_Print0
+_0238AF24:
+	ldr r0, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r0, [r0]
+	bl MemFree
+	ldr r0, _0238AF40 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	mov r1, #0
+	str r1, [r0]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0238AF40: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
+_0238AF44: .word ov15_0238B11C
+_0238AF48: .word ov15_0238B12C
+_0238AF4C: .word ov15_0238B13C
+_0238AF50: .word ov15_0238B150
+	arm_func_end ov15_0238AE98
+
+	arm_func_start ov15_0238AF54
+ov15_0238AF54: ; 0x0238AF54
+	stmdb sp!, {r3, lr}
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r1, [r0]
+	ldr r0, [r1]
+	cmp r0, #5
+	addls pc, pc, r0, lsl #2
+	b _0238B048
+_0238AF70: ; jump table
+	b _0238AF88 ; case 0
+	b _0238AF94 ; case 1
+	b _0238AFB0 ; case 2
+	b _0238B03C ; case 3
+	b _0238B048 ; case 4
+	b _0238AFF4 ; case 5
+_0238AF88:
+	mov r0, #1
+	str r0, [r1]
+	b _0238B048
+_0238AF94:
+	bl ov15_0238A234
+	cmp r0, #3
+	ldreq r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	moveq r1, #2
+	ldreq r0, [r0]
+	streq r1, [r0]
+	b _0238B048
+_0238AFB0:
+	ldrsb r0, [r1, #0x80]
+	bl IsDialogueBoxActive
+	cmp r0, #0
+	bne _0238B048
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r0, [r0]
+	ldrsb r0, [r0, #0x81]
+	bl HidePortraitBox
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r0, [r0]
+	ldrsb r0, [r0, #0x80]
+	bl sub_0202F2C4
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	mov r1, #5
+	ldr r0, [r0]
+	str r1, [r0]
+	b _0238B048
+_0238AFF4:
+	ldrsb r0, [r1, #0x80]
+	bl sub_0202836C
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r0, [r0]
+	ldrsb r0, [r0, #0x81]
+	bl ClosePortraitBox
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	ldr r0, [r0]
+	ldrsb r0, [r0, #0x80]
+	bl CloseDialogueBox
+	ldr r0, _0238B050 ; =OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	mov r3, #3
+	ldr r2, [r0]
+	sub r1, r3, #5
+	str r3, [r2]
+	ldr r0, [r0]
+	strb r1, [r0, #0x80]
+	b _0238B048
+_0238B03C:
+	bl ov11_022E6E68
+	mov r0, #4
+	ldmia sp!, {r3, pc}
+_0238B048:
+	mov r0, #1
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0238B050: .word OVERLAY15_UNKNOWN_POINTER__NA_238B180
+	arm_func_end ov15_0238AF54
+	; 0x0238B054
+
+	.global BANK_MAIN_MENU_ITEMS
+BANK_MAIN_MENU_ITEMS:
+#ifdef JAPAN
+#define OV15_DATA_OFFSET 0x2EC5
+#else
+#define OV15_DATA_OFFSET 0
+#endif
+	.word 0x36F + OV15_DATA_OFFSET
+	.byte 0x02, 0x00, 0x00, 0x00
+	.word 0x370 + OV15_DATA_OFFSET
+	.byte 0x03, 0x00, 0x00, 0x00
+	.word 0x371 + OV15_DATA_OFFSET
+	.byte 0x04, 0x00, 0x00, 0x00
+	.word 0x372 + OV15_DATA_OFFSET
+	.byte 0x01, 0x00, 0x00, 0x00
+	.byte 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x12, 0x1E, 0x05
+	.byte 0x00, 0xFD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+	.global BANK_WINDOW_PARAMS_2
+BANK_WINDOW_PARAMS_2:
+	.byte 0x00, 0x00, 0x00, 0x00, 0x02, 0x03, 0x1C, 0x03
+	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+	.global BANK_WINDOW_PARAMS_3
+BANK_WINDOW_PARAMS_3:
+	.byte 0x00, 0x00, 0x00, 0x00, 0x13, 0x08, 0x0B, 0x07
+	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+	.global BANK_WINDOW_PARAMS_4
+BANK_WINDOW_PARAMS_4:
+	.byte 0x00, 0x00, 0x00, 0x00, 0x1E, 0x0F, 0x00, 0x00
+	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x0A, 0x05
+	.byte 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+#ifndef EUROPE
+	.global ov15_0238B0CC
+ov15_0238B0CC:
+	.byte 0x43, 0x61, 0x6E, 0x63, 0x65, 0x6C, 0x0A, 0x00
+#endif
+	.global ov15_0238B0D4
+ov15_0238B0D4:
+	.byte 0x52, 0x2D, 0x43, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00, 0x00
+	.global ov15_0238B0E0
+ov15_0238B0E0:
+	.byte 0x4D, 0x2D, 0x4F, 0x70
+	.byte 0x65, 0x6E, 0x0A, 0x00
+	.global ov15_0238B0E8
+ov15_0238B0E8:
+	.byte 0x53, 0x2D, 0x43, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00, 0x00
+	.global ov15_0238B0F4
+ov15_0238B0F4:
+	.byte 0x4D, 0x65, 0x6E, 0x75, 0x5F, 0x42, 0x61, 0x6E, 0x6B, 0x5F, 0x4D, 0x6F, 0x64, 0x65, 0x5F, 0x43
+	.byte 0x61, 0x6E, 0x63, 0x65, 0x6C, 0x0A, 0x00, 0x00
+	.global ov15_0238B10C
+ov15_0238B10C:
+	.byte 0x50, 0x2D, 0x4F, 0x70, 0x65, 0x6E, 0x0A, 0x00
+	.global ov15_0238B114
+ov15_0238B114:
+	.byte 0x47, 0x2D, 0x4F, 0x70, 0x65, 0x6E, 0x0A, 0x00
+	.global ov15_0238B11C
+ov15_0238B11C:
+	.byte 0x6D, 0x65, 0x73, 0x20, 0x6E, 0x6F, 0x74, 0x20
+	.byte 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00
+	.global ov15_0238B12C
+ov15_0238B12C:
+	.byte 0x73, 0x75, 0x62, 0x20, 0x6E, 0x6F, 0x74, 0x20
+	.byte 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00
+	.global ov15_0238B13C
+ov15_0238B13C:
+	.byte 0x73, 0x65, 0x6C, 0x65, 0x63, 0x74, 0x20, 0x6E
+	.byte 0x6F, 0x74, 0x20, 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00
+	.global ov15_0238B150
+ov15_0238B150:
+	.byte 0x49, 0x6E, 0x70, 0x75
+	.byte 0x74, 0x20, 0x6E, 0x6F, 0x74, 0x20, 0x63, 0x6C, 0x6F, 0x73, 0x65, 0x0A, 0x00, 0x00, 0x00, 0x00
+
+	.data
+	.global OVERLAY15_UNKNOWN_POINTER__NA_238B180
+OVERLAY15_UNKNOWN_POINTER__NA_238B180:
+	.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
diff --git a/include/overlay_15_0238AD78.h b/include/overlay_15_0238AD78.h
new file mode 100644
index 00000000..38200da1
--- /dev/null
+++ b/include/overlay_15_0238AD78.h
@@ -0,0 +1,13 @@
+#ifndef PMDSKY_OVERLAY_15_0238AD78_H
+#define PMDSKY_OVERLAY_15_0238AD78_H
+
+typedef struct {
+    u8 fill0[0x54];
+    u32 unk54;
+    u8 fill58[0x68 - 0x58];
+    s8 unk68;
+} unkStruct_ov15_0238AD78;
+
+void ov15_0238AD78(u32 r0);
+
+#endif //PMDSKY_OVERLAY_15_0238AD78_H
diff --git a/main.lsf b/main.lsf
index 0aa962bf..f8649097 100644
--- a/main.lsf
+++ b/main.lsf
@@ -127,6 +127,8 @@ Overlay OVY_15
 {
 	After OVY_11
 	Object asm/overlay_15.o
+	Object src/overlay_15_0238AD78.o
+	Object asm/overlay_15_0238ADC4.o
 }
 Overlay OVY_16
 {
diff --git a/src/overlay_15_0238AD78.c b/src/overlay_15_0238AD78.c
new file mode 100644
index 00000000..f5f49e7d
--- /dev/null
+++ b/src/overlay_15_0238AD78.c
@@ -0,0 +1,18 @@
+#include "overlay_15_0238AD78.h"
+
+extern unkStruct_ov15_0238AD78* OVERLAY15_UNKNOWN_POINTER__NA_238B180;
+
+extern void sub_02026268(u32, u32, u32, u16);
+extern void sub_02039B0C(u32*);
+
+void ov15_0238AD78(u32 r0) {
+    u32 uVar1;
+    if (r0 != 0)
+        uVar1 = 900;
+    else
+        uVar1 = 901;
+
+    sub_02026268(OVERLAY15_UNKNOWN_POINTER__NA_238B180->unk68, 2, 0, uVar1);
+    sub_02039B0C(&OVERLAY15_UNKNOWN_POINTER__NA_238B180->unk54);
+    return;
+}
diff --git a/tools/extract_function/extract_function.py b/tools/extract_function/extract_function.py
index 8a82ebbe..46e72130 100644
--- a/tools/extract_function/extract_function.py
+++ b/tools/extract_function/extract_function.py
@@ -45,6 +45,8 @@ if function_location.startswith('main'):
     file_prefix = 'main_'
 else:
     file_prefix = function_location[:len('overlay_00_')]
+    if file_prefix[-1] != '_':
+        file_prefix += '_'
 
 function_start_line = None
 function_end_line = None