diff --git a/asm/rom_11B9C.s b/asm/rom_11B9C.s
index dff80e5..c5894f3 100644
--- a/asm/rom_11B9C.s
+++ b/asm/rom_11B9C.s
@@ -50712,807 +50712,3 @@ _08031488: .4byte 0x80000240
 _0803148C: .4byte gOamBuffer
 _08031490: .4byte 0xFFFFFE00
 _08031494: .4byte 0x000001FF
-
-	thumb_func_start sub_31498
-sub_31498: @ 0x08031498
-	push {r4, r5, r6, r7, lr}
-	mov r7, sl
-	mov r6, sb
-	mov r5, r8
-	push {r5, r6, r7}
-	ldr r1, _080314C4 @ =gCurrentPinballGame
-	ldr r0, [r1]
-	ldr r2, _080314C8 @ =0x00000346
-	adds r0, r0, r2
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	adds r5, r1, #0
-	cmp r0, #6
-	bls _080314B8
-	b _080319AC
-_080314B8:
-	lsls r0, r0, #2
-	ldr r1, _080314CC @ =_080314D0
-	adds r0, r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080314C4: .4byte gCurrentPinballGame
-_080314C8: .4byte 0x00000346
-_080314CC: .4byte _080314D0
-_080314D0: @ jump table
-	.4byte _080314EC @ case 0
-	.4byte _08031610 @ case 1
-	.4byte _080319AC @ case 2
-	.4byte _080316F4 @ case 3
-	.4byte _080317E0 @ case 4
-	.4byte _080318A8 @ case 5
-	.4byte _08031988 @ case 6
-_080314EC:
-	ldr r4, [r5]
-	movs r3, #0xd1
-	lsls r3, r3, #2
-	adds r0, r4, r3
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0
-	bne _08031500
-	b _080319AC
-_08031500:
-	movs r0, #0x13
-	ldrsb r0, [r4, r0]
-	cmp r0, #2
-	bgt _080315A4
-	ldr r7, _08031528 @ =0x00000345
-	adds r1, r4, r7
-	ldrb r2, [r1]
-	movs r0, #0
-	ldrsb r0, [r1, r0]
-	cmp r0, #2
-	bgt _08031530
-	adds r0, r2, #1
-	strb r0, [r1]
-	ldr r1, [r5]
-	ldr r0, _0803152C @ =0x00004E20
-	str r0, [r1, #0x3c]
-	movs r0, SE_UNKNOWN_0xDE
-	bl m4aSongNumStart
-	b _080315C2
-	.align 2, 0
-_08031528: .4byte 0x00000345
-_0803152C: .4byte 0x00004E20
-_08031530:
-	ldr r2, _08031594 @ =gMain
-	ldrb r1, [r2, #0xf]
-	movs r0, #1
-	movs r3, #0
-	orrs r0, r1
-	strb r0, [r2, #0xf]
-	adds r0, r4, #0
-	adds r0, #0xea
-	movs r2, #0
-	strh r3, [r0]
-	adds r1, r4, #0
-	adds r1, #0xec
-	movs r0, #0xe6
-	lsls r0, r0, #2
-	strh r0, [r1]
-	adds r0, r4, #0
-	adds r0, #0xe8
-	strh r3, [r0]
-	subs r0, #2
-	strh r3, [r0]
-	adds r0, #8
-	strh r3, [r0]
-	adds r0, #4
-	strb r2, [r0]
-	ldr r0, [r5]
-	adds r0, #0xfa
-	movs r1, #1
-	strb r1, [r0]
-	ldr r0, [r5]
-	adds r0, #0xfb
-	strb r2, [r0]
-	ldr r0, [r5]
-	ldr r2, _08031598 @ =0x00000346
-	adds r0, r0, r2
-	strb r1, [r0]
-	ldr r0, [r5]
-	movs r4, #0xd2
-	lsls r4, r4, #2
-	adds r0, r0, r4
-	strh r3, [r0]
-	ldr r0, _0803159C @ =gMPlayInfo_BGM
-	bl m4aMPlayStop
-	ldr r1, [r5]
-	ldr r0, _080315A0 @ =0x00030D40
-	str r0, [r1, #0x3c]
-	movs r0, SE_UNKNOWN_0xDF
-	bl m4aSongNumStart
-	b _080315C2
-	.align 2, 0
-_08031594: .4byte gMain
-_08031598: .4byte 0x00000346
-_0803159C: .4byte gMPlayInfo_BGM
-_080315A0: .4byte 0x00030D40
-_080315A4:
-	ldr r7, _080315F4 @ =0x00000345
-	adds r1, r4, r7
-	ldrb r2, [r1]
-	movs r0, #0
-	ldrsb r0, [r1, r0]
-	cmp r0, #2
-	bgt _080315C2
-	adds r0, r2, #1
-	strb r0, [r1]
-	ldr r1, [r5]
-	ldr r0, _080315F8 @ =0x00004E20
-	str r0, [r1, #0x3c]
-	movs r0, SE_UNKNOWN_0xDE
-	bl m4aSongNumStart
-_080315C2:
-	ldr r0, _080315FC @ =gCurrentPinballGame
-	ldr r3, [r0]
-	ldr r1, _080315F4 @ =0x00000345
-	adds r0, r3, r1
-	ldr r2, _08031600 @ =0x040000D4
-	movs r1, #0
-	ldrsb r1, [r0, r1]
-	lsls r0, r1, #4
-	adds r0, r0, r1
-	lsls r0, r0, #6
-	ldr r1, _08031604 @ =gUnknown_08490A4C
-	adds r0, r0, r1
-	str r0, [r2]
-	ldr r0, _08031608 @ =0x0600D900
-	str r0, [r2, #4]
-	ldr r0, _0803160C @ =0x80000220
-	str r0, [r2, #8]
-	ldr r0, [r2, #8]
-	movs r2, #0xd1
-	lsls r2, r2, #2
-	adds r3, r3, r2
-	movs r0, #0
-	strb r0, [r3]
-	b _080319AC
-	.align 2, 0
-_080315F4: .4byte 0x00000345
-_080315F8: .4byte 0x00004E20
-_080315FC: .4byte gCurrentPinballGame
-_08031600: .4byte 0x040000D4
-_08031604: .4byte gUnknown_08490A4C
-_08031608: .4byte 0x0600D900
-_0803160C: .4byte 0x80000220
-_08031610:
-	ldr r0, [r5]
-	movs r3, #0xd2
-	lsls r3, r3, #2
-	adds r2, r0, r3
-	ldrh r1, [r2]
-	ldr r0, _08031654 @ =0x0000010D
-	cmp r1, r0
-	bhi _08031668
-	adds r0, r1, #0
-	movs r1, #0x3c
-	bl __umodsi3
-	lsls r0, r0, #0x10
-	lsrs r0, r0, #0x10
-	movs r1, #0x1e
-	bl __udivsi3
-	adds r0, #4
-	ldr r2, _08031658 @ =0x040000D4
-	lsls r0, r0, #0x10
-	asrs r0, r0, #0x10
-	lsls r1, r0, #4
-	adds r1, r1, r0
-	lsls r1, r1, #6
-	ldr r0, _0803165C @ =gUnknown_08490A4C
-	adds r1, r1, r0
-	str r1, [r2]
-	ldr r0, _08031660 @ =0x0600D900
-	str r0, [r2, #4]
-	ldr r0, _08031664 @ =0x80000220
-	str r0, [r2, #8]
-	ldr r0, [r2, #8]
-	b _0803168C
-	.align 2, 0
-_08031654: .4byte 0x0000010D
-_08031658: .4byte 0x040000D4
-_0803165C: .4byte gUnknown_08490A4C
-_08031660: .4byte 0x0600D900
-_08031664: .4byte 0x80000220
-_08031668:
-	ldr r1, _080316D8 @ =0x040000D4
-	movs r2, #0
-	ldr r0, _080316DC @ =gUnknown_08490A4C
-	str r0, [r1]
-	ldr r0, _080316E0 @ =0x0600D900
-	str r0, [r1, #4]
-	ldr r0, _080316E4 @ =0x80000220
-	str r0, [r1, #8]
-	ldr r0, [r1, #8]
-	ldr r0, [r5]
-	ldr r4, _080316E8 @ =0x00000346
-	adds r0, r0, r4
-	movs r1, #2
-	strb r1, [r0]
-	ldr r0, [r5]
-	ldr r7, _080316EC @ =0x00000345
-	adds r0, r0, r7
-	strb r2, [r0]
-_0803168C:
-	ldr r0, [r5]
-	movs r4, #0xd2
-	lsls r4, r4, #2
-	adds r0, r0, r4
-	ldrh r0, [r0]
-	cmp r0, #0x3c
-	bne _080316CC
-	movs r0, MUS_EGG_MODE_START
-	bl m4aSongNumStart
-	ldr r0, [r5]
-	movs r1, #0xe5
-	lsls r1, r1, #3
-	adds r0, r0, r1
-	movs r2, #0
-	strb r2, [r0]
-	ldr r0, [r5]
-	movs r3, #0xf6
-	lsls r3, r3, #1
-	adds r0, r0, r3
-	movs r1, #5
-	strb r1, [r0]
-	ldr r0, [r5]
-	ldr r7, _080316F0 @ =0x000001ED
-	adds r1, r0, r7
-	movs r0, #0xc
-	strb r0, [r1]
-	ldr r0, [r5]
-	movs r1, #0xf8
-	lsls r1, r1, #1
-	adds r0, r0, r1
-	strh r2, [r0]
-_080316CC:
-	ldr r1, [r5]
-	adds r1, r1, r4
-	ldrh r0, [r1]
-	adds r0, #1
-	strh r0, [r1]
-	b _080319AC
-	.align 2, 0
-_080316D8: .4byte 0x040000D4
-_080316DC: .4byte gUnknown_08490A4C
-_080316E0: .4byte 0x0600D900
-_080316E4: .4byte 0x80000220
-_080316E8: .4byte 0x00000346
-_080316EC: .4byte 0x00000345
-_080316F0: .4byte 0x000001ED
-_080316F4:
-	ldr r6, _0803171C @ =gUnknown_086AE5A0
-	ldr r2, [r5]
-	ldr r4, _08031720 @ =0x00000345
-	adds r3, r2, r4
-	movs r0, #0
-	ldrsb r0, [r3, r0]
-	lsls r0, r0, #2
-	adds r1, r6, #2
-	adds r0, r0, r1
-	movs r7, #0
-	ldrsh r0, [r0, r7]
-	movs r1, #0xd2
-	lsls r1, r1, #2
-	adds r2, r2, r1
-	ldrh r1, [r2]
-	cmp r0, r1
-	ble _08031724
-	adds r0, r1, #1
-	strh r0, [r2]
-	b _08031784
-	.align 2, 0
-_0803171C: .4byte gUnknown_086AE5A0
-_08031720: .4byte 0x00000345
-_08031724:
-	movs r0, #0
-	strh r0, [r2]
-	ldrb r0, [r3]
-	adds r0, #1
-	strb r0, [r3]
-	ldr r1, [r5]
-	ldr r2, _080317A0 @ =0x00000345
-	adds r0, r1, r2
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0xa
-	bne _08031746
-	ldr r3, _080317A4 @ =0x00000346
-	adds r1, r1, r3
-	movs r0, #4
-	strb r0, [r1]
-_08031746:
-	ldr r0, [r5]
-	adds r0, r0, r4
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #6
-	bne _0803175A
-	movs r0, SE_UNKNOWN_0xE0
-	bl m4aSongNumStart
-_0803175A:
-	ldr r0, [r5]
-	adds r0, r0, r4
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	lsls r0, r0, #2
-	adds r0, r0, r6
-	ldr r2, _080317A8 @ =0x040000D4
-	movs r4, #0
-	ldrsh r1, [r0, r4]
-	lsls r0, r1, #4
-	adds r0, r0, r1
-	lsls r0, r0, #6
-	ldr r1, _080317AC @ =gUnknown_08490A4C
-	adds r0, r0, r1
-	str r0, [r2]
-	ldr r0, _080317B0 @ =0x0600D900
-	str r0, [r2, #4]
-	ldr r0, _080317B4 @ =0x80000220
-	str r0, [r2, #8]
-	ldr r0, [r2, #8]
-_08031784:
-	ldr r1, [r5]
-	ldr r7, _080317A0 @ =0x00000345
-	adds r0, r1, r7
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #5
-	bgt _080317B8
-	movs r0, #0x80
-	lsls r0, r0, #2
-	adds r1, r1, r0
-	subs r0, #0xe8
-	str r0, [r1]
-	b _080319AC
-	.align 2, 0
-_080317A0: .4byte 0x00000345
-_080317A4: .4byte 0x00000346
-_080317A8: .4byte 0x040000D4
-_080317AC: .4byte gUnknown_08490A4C
-_080317B0: .4byte 0x0600D900
-_080317B4: .4byte 0x80000220
-_080317B8:
-	movs r2, #0x80
-	lsls r2, r2, #2
-	adds r3, r1, r2
-	ldr r2, [r3]
-	adds r0, r2, #6
-	str r0, [r3]
-	ldr r4, _080317DC @ =0x00000346
-	adds r0, r1, r4
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #4
-	beq _080317D4
-	b _080319AC
-_080317D4:
-	adds r0, r2, #0
-	adds r0, #0x1a
-	str r0, [r3]
-	b _080319AC
-	.align 2, 0
-_080317DC: .4byte 0x00000346
-_080317E0:
-	ldr r5, _08031894 @ =gCurrentPinballGame
-	ldr r4, [r5]
-	ldr r7, _08031898 @ =0x00000343
-	adds r0, r4, r7
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0
-	beq _08031882
-	movs r1, #0xd1
-	lsls r1, r1, #2
-	adds r0, r4, r1
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0
-	beq _08031882
-	ldr r2, _0803189C @ =gMain
-	ldrb r1, [r2, #0xf]
-	movs r0, #1
-	movs r3, #0
-	orrs r0, r1
-	strb r0, [r2, #0xf]
-	adds r0, r4, #0
-	adds r0, #0xea
-	movs r2, #0
-	strh r3, [r0]
-	adds r1, r4, #0
-	adds r1, #0xec
-	movs r0, #0xa0
-	strh r0, [r1]
-	adds r0, r4, #0
-	adds r0, #0xe8
-	strh r3, [r0]
-	subs r0, #2
-	strh r3, [r0]
-	adds r0, #8
-	strh r3, [r0]
-	adds r0, #4
-	strb r2, [r0]
-	ldr r0, [r5]
-	adds r0, #0xfa
-	movs r4, #1
-	strb r4, [r0]
-	ldr r0, [r5]
-	adds r0, #0xfb
-	strb r2, [r0]
-	ldr r0, [r5]
-	ldr r2, _080318A0 @ =0x00000346
-	adds r0, r0, r2
-	movs r1, #5
-	strb r1, [r0]
-	ldr r0, [r5]
-	adds r7, #5
-	adds r1, r0, r7
-	strh r3, [r1]
-	ldr r1, _080318A4 @ =0x00000345
-	adds r0, r0, r1
-	movs r1, #0xa
-	strb r1, [r0]
-	movs r0, SE_UNKNOWN_0xE0
-	bl m4aSongNumStart
-	ldr r0, [r5]
-	movs r2, #0xf6
-	lsls r2, r2, #1
-	adds r0, r0, r2
-	strb r4, [r0]
-	ldr r2, [r5]
-	movs r3, #0xfa
-	lsls r3, r3, #1
-	adds r1, r2, r3
-	movs r0, #0x82
-	lsls r0, r0, #4
-	strh r0, [r1]
-	movs r4, #0xfb
-	lsls r4, r4, #1
-	adds r1, r2, r4
-	movs r0, #0xf0
-	lsls r0, r0, #2
-	strh r0, [r1]
-_08031882:
-	ldr r0, _08031894 @ =gCurrentPinballGame
-	ldr r0, [r0]
-	movs r7, #0xd1
-	lsls r7, r7, #2
-	adds r0, r0, r7
-	movs r1, #0
-	strb r1, [r0]
-	b _080319AC
-	.align 2, 0
-_08031894: .4byte gCurrentPinballGame
-_08031898: .4byte 0x00000343
-_0803189C: .4byte gMain
-_080318A0: .4byte 0x00000346
-_080318A4: .4byte 0x00000345
-_080318A8:
-	ldr r6, _080318D0 @ =gUnknown_086AE5A0
-	ldr r2, [r5]
-	ldr r4, _080318D4 @ =0x00000345
-	adds r3, r2, r4
-	movs r0, #0
-	ldrsb r0, [r3, r0]
-	lsls r0, r0, #2
-	adds r1, r6, #2
-	adds r0, r0, r1
-	movs r1, #0
-	ldrsh r0, [r0, r1]
-	movs r7, #0xd2
-	lsls r7, r7, #2
-	adds r2, r2, r7
-	ldrh r1, [r2]
-	cmp r0, r1
-	ble _080318D8
-	adds r0, r1, #1
-	strh r0, [r2]
-	b _08031924
-	.align 2, 0
-_080318D0: .4byte gUnknown_086AE5A0
-_080318D4: .4byte 0x00000345
-_080318D8:
-	movs r0, #0
-	strh r0, [r2]
-	ldrb r0, [r3]
-	adds r0, #1
-	strb r0, [r3]
-	ldr r1, [r5]
-	ldr r2, _08031968 @ =0x00000345
-	adds r0, r1, r2
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0xf
-	bne _080318FA
-	ldr r3, _0803196C @ =0x00000346
-	adds r1, r1, r3
-	movs r0, #6
-	strb r0, [r1]
-_080318FA:
-	ldr r0, [r5]
-	adds r0, r0, r4
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	lsls r0, r0, #2
-	adds r0, r0, r6
-	ldr r2, _08031970 @ =0x040000D4
-	movs r4, #0
-	ldrsh r1, [r0, r4]
-	lsls r0, r1, #4
-	adds r0, r0, r1
-	lsls r0, r0, #6
-	ldr r1, _08031974 @ =gUnknown_08490A4C
-	adds r0, r0, r1
-	str r0, [r2]
-	ldr r0, _08031978 @ =0x0600D900
-	str r0, [r2, #4]
-	ldr r0, _0803197C @ =0x80000220
-	str r0, [r2, #8]
-	ldr r0, [r2, #8]
-_08031924:
-	ldr r0, _08031980 @ =gCurrentPinballGame
-	ldr r1, [r0]
-	ldr r7, _08031968 @ =0x00000345
-	adds r0, r1, r7
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0xe
-	bne _08031948
-	movs r2, #0xd2
-	lsls r2, r2, #2
-	adds r0, r1, r2
-	ldrh r0, [r0]
-	cmp r0, #0xa
-	bne _08031948
-	movs r0, SE_UNKNOWN_0xE1
-	bl m4aSongNumStart
-_08031948:
-	ldr r0, _08031980 @ =gCurrentPinballGame
-	ldr r0, [r0]
-	movs r3, #0xfb
-	lsls r3, r3, #1
-	adds r1, r0, r3
-	ldrh r3, [r1]
-	movs r4, #0
-	ldrsh r0, [r1, r4]
-	movs r2, #0xaf
-	lsls r2, r2, #2
-	cmp r0, r2
-	ble _08031984
-	subs r0, r3, #5
-	strh r0, [r1]
-	b _080319AC
-	.align 2, 0
-_08031968: .4byte 0x00000345
-_0803196C: .4byte 0x00000346
-_08031970: .4byte 0x040000D4
-_08031974: .4byte gUnknown_08490A4C
-_08031978: .4byte 0x0600D900
-_0803197C: .4byte 0x80000220
-_08031980: .4byte gCurrentPinballGame
-_08031984:
-	strh r2, [r1]
-	b _080319AC
-_08031988:
-	ldr r0, [r5]
-	ldr r7, _080319F8 @ =0x00000345
-	adds r0, r0, r7
-	movs r2, #0
-	strb r2, [r0]
-	ldr r0, [r5]
-	movs r3, #0xd2
-	lsls r3, r3, #2
-	adds r1, r0, r3
-	movs r3, #0
-	strh r2, [r1]
-	ldr r4, _080319FC @ =0x00000346
-	adds r0, r0, r4
-	strb r3, [r0]
-	ldr r0, [r5]
-	subs r7, #2
-	adds r0, r0, r7
-	strb r3, [r0]
-_080319AC:
-	movs r1, #0
-	ldr r0, _08031A00 @ =0x040000D4
-	mov sb, r0
-	ldr r2, _08031A04 @ =gUnknown_086AE554
-	mov sl, r2
-_080319B6:
-	lsls r1, r1, #0x10
-	asrs r4, r1, #0x10
-	movs r0, #0xb8
-	muls r0, r4, r0
-	ldr r3, _08031A08 @ =gMain+0x24C0 @gMain.spriteGroups[47]
-	adds r6, r0, r3
-	ldrh r0, [r6]
-	mov r8, r1
-	cmp r0, #0
-	bne _080319CC
-	b _08031AEA
-_080319CC:
-	ldr r5, _08031A0C @ =gCurrentPinballGame
-	ldr r1, [r5]
-	ldr r7, _08031A10 @ =0x00000355
-	adds r0, r1, r7
-	adds r3, r0, r4
-	movs r0, #0
-	ldrsb r0, [r3, r0]
-	lsls r0, r0, #2
-	ldr r2, _08031A14 @ =gUnknown_086AE58A
-	adds r0, r0, r2
-	movs r7, #0
-	ldrsh r2, [r0, r7]
-	lsls r0, r4, #1
-	ldr r7, _08031A18 @ =0x0000035E
-	adds r1, r1, r7
-	adds r1, r1, r0
-	ldrh r0, [r1]
-	cmp r2, r0
-	ble _08031A1C
-	adds r0, #1
-	strh r0, [r1]
-	b _08031A3C
-	.align 2, 0
-_080319F8: .4byte 0x00000345
-_080319FC: .4byte 0x00000346
-_08031A00: .4byte 0x040000D4
-_08031A04: .4byte gUnknown_086AE554
-_08031A08: .4byte gMain+0x24C0 @gMain.spriteGroups[47]
-_08031A0C: .4byte gCurrentPinballGame
-_08031A10: .4byte 0x00000355
-_08031A14: .4byte gUnknown_086AE58A
-_08031A18: .4byte 0x0000035E
-_08031A1C:
-	movs r2, #0
-	strh r2, [r1]
-	ldrb r0, [r3]
-	adds r0, #1
-	strb r0, [r3]
-	ldr r0, [r5]
-	ldr r1, _08031B08 @ =0x00000355
-	adds r0, r0, r1
-	adds r1, r0, r4
-	movs r0, #0
-	ldrsb r0, [r1, r0]
-	cmp r0, #6
-	bne _08031A3C
-	strh r2, [r6]
-	movs r0, #5
-	strb r0, [r1]
-_08031A3C:
-	ldr r2, _08031B0C @ =gCurrentPinballGame
-	ldr r4, [r2]
-	mov r7, r8
-	asrs r3, r7, #0x10
-	ldr r1, _08031B08 @ =0x00000355
-	adds r0, r4, r1
-	adds r0, r0, r3
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	lsls r0, r0, #2
-	ldr r2, _08031B10 @ =gUnknown_086AE588
-	adds r0, r0, r2
-	movs r7, #0
-	ldrsh r0, [r0, r7]
-	lsls r0, r0, #8
-	ldr r1, _08031B14 @ =gUnknown_0845A08C
-	adds r0, r0, r1
-	mov r1, sb
-	str r0, [r1]
-	lsls r0, r3, #8
-	ldr r2, _08031B18 @ =0x060140A0
-	adds r0, r0, r2
-	str r0, [r1, #4]
-	ldr r0, _08031B1C @ =0x80000080
-	str r0, [r1, #8]
-	ldr r0, [r1, #8]
-	ldr r7, _08031B20 @ =0x00000359
-	adds r2, r4, r7
-	adds r2, r2, r3
-	movs r0, #0
-	ldrsb r0, [r2, r0]
-	lsls r0, r0, #2
-	add r0, sl
-	adds r1, r4, #0
-	adds r1, #0x58
-	ldrh r0, [r0]
-	ldrh r1, [r1]
-	subs r0, r0, r1
-	strh r0, [r6, #2]
-	movs r0, #0
-	ldrsb r0, [r2, r0]
-	lsls r0, r0, #2
-	add r0, sl
-	adds r4, #0x5a
-	ldrh r0, [r0, #2]
-	ldrh r1, [r4]
-	subs r0, r0, r1
-	strh r0, [r6, #4]
-	movs r0, #0
-	ldr r7, _08031B24 @ =gOamBuffer
-	ldr r1, _08031B28 @ =0xFFFFFE00
-	mov ip, r1
-_08031AA6:
-	lsls r3, r0, #0x10
-	asrs r3, r3, #0x10
-	lsls r5, r3, #3
-	adds r5, #8
-	adds r5, r6, r5
-	ldrh r2, [r5]
-	lsls r2, r2, #3
-	adds r2, r2, r7
-	movs r4, #2
-	ldrsh r1, [r5, r4]
-	movs r4, #2
-	ldrsh r0, [r6, r4]
-	adds r1, r1, r0
-	ldr r4, _08031B2C @ =0x000001FF
-	adds r0, r4, #0
-	ands r1, r0
-	ldrh r4, [r2, #2]
-	mov r0, ip
-	ands r0, r4
-	orrs r0, r1
-	strh r0, [r2, #2]
-	ldrh r1, [r5]
-	lsls r1, r1, #3
-	adds r1, r1, r7
-	ldrb r0, [r6, #4]
-	ldrb r5, [r5, #4]
-	adds r0, r0, r5
-	strb r0, [r1]
-	adds r3, #1
-	lsls r3, r3, #0x10
-	lsrs r0, r3, #0x10
-	asrs r3, r3, #0x10
-	cmp r3, #2
-	ble _08031AA6
-_08031AEA:
-	movs r0, #0x80
-	lsls r0, r0, #9
-	add r0, r8
-	lsrs r1, r0, #0x10
-	asrs r0, r0, #0x10
-	cmp r0, #3
-	bgt _08031AFA
-	b _080319B6
-_08031AFA:
-	pop {r3, r4, r5}
-	mov r8, r3
-	mov sb, r4
-	mov sl, r5
-	pop {r4, r5, r6, r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08031B08: .4byte 0x00000355
-_08031B0C: .4byte gCurrentPinballGame
-_08031B10: .4byte gUnknown_086AE588
-_08031B14: .4byte gUnknown_0845A08C
-_08031B18: .4byte 0x060140A0
-_08031B1C: .4byte 0x80000080
-_08031B20: .4byte 0x00000359
-_08031B24: .4byte gOamBuffer
-_08031B28: .4byte 0xFFFFFE00
-_08031B2C: .4byte 0x000001FF
diff --git a/expected_objs/sub_31498.o b/expected_objs/sub_31498.o
deleted file mode 100644
index 78a1624..0000000
Binary files a/expected_objs/sub_31498.o and /dev/null differ
diff --git a/include/global.h b/include/global.h
index 2980d3b..20e7580 100644
--- a/include/global.h
+++ b/include/global.h
@@ -268,8 +268,10 @@ struct PinballGame
     /*0x1F2*/ u8 unk1F2;
     /*0x1F3*/ u8 unk1F3;
     /*0x1F4*/ u16 unk1F4;
-    /*0x1F6*/ u16 unk1F6;
-    /*0x1F8*/ u8 filler1F8[0xF];
+    /*0x1F6*/ s16 unk1F6;
+    /*0x1F8*/ u8 filler1F8[0x8];
+    /*0x200*/ u32 unk200;
+    /*0x204*/ u8 filler204[0x4];
     /*0x208*/ u16 unk208;
     /*0x20A*/ u8 unk20A;
     /*0x20B*/ u8 filler20B[0x54];
@@ -338,10 +340,19 @@ struct PinballGame
     /*0x31E*/ s16 unk31E;
     /*0x320*/ s16 unk320;
     /*0x322*/ s16 unk322;
-    /*0x324*/ u8 filler324[0x21];
+    /*0x324*/ u8 filler324[0x1F];
+    /*0x343*/ s8 unk343;
+    /*0x344*/ s8 unk344;
     /*0x345*/ s8 unk345;
     /*0x346*/ s8 unk346;
-    /*0x347*/ u8 filler347[0x23];
+    /*0x347*/ u8 filler347[0x1];
+    /*0x348*/ u16 unk348;
+    /*0x34A*/ u8 filler34A[0xB];
+    /*0x355*/ s8 unk355[4];
+    /*0x359*/ s8 unk359[4];
+    /*0x35D*/ u8 filler35D[0x1];
+    /*0x35E*/ u16 unk35E[4];
+    /*0x366*/ u8 filler366[0x4];
     /*0x36A*/ u8 unk36A[2];
     /*0x36C*/ u8 unk36C[2];
     /*0x36E*/ u16 unk36E[2];
@@ -755,6 +766,6 @@ extern Unk86ACE0C gUnknown_086ACE0C[8];
 extern struct Vector16 gUnknown_086ACE60[4];
 extern struct Unk086ACE8C gUnknown_086ACE8C[13];
 extern u16 gUnknown_086ACEF4[2];
-extern s16 gUnknown_086AE68E[][2]; 
+extern s16 gUnknown_086AE68E[][2];
 
-#endif // GUARD_GLOBAL_H
+#endif // GUARD_GLOBAL_H
\ No newline at end of file
diff --git a/src/rom_31BE8.c b/src/rom_31BE8.c
index d53d80c..fee5ae3 100644
--- a/src/rom_31BE8.c
+++ b/src/rom_31BE8.c
@@ -1,7 +1,213 @@
 #include "global.h"
 #include "main.h"
 #include "gba/gba.h"
+#include "m4a.h"
 #include "constants/fields.h"
+#include "constants/bg_music.h"
+
+extern const u8 gUnknown_0845A08C[][0x100];
+extern const s16 gUnknown_086AE5A0[][2];
+extern const s16 gUnknown_086AE58A[][2];
+extern const s16 gUnknown_086AE588[][2];
+extern const u8 gUnknown_08490A4C[][0x440];
+extern struct Vector16 gUnknown_086AE554[];
+
+void sub_31498(void) 
+{
+    s16 i, j;
+    struct SpriteGroup *group;
+    struct OamDataSimple *oamSimple;
+    s16 index;
+
+    switch (gCurrentPinballGame->unk346)
+    {
+    case 0:
+        if (gCurrentPinballGame->unk344)
+        {
+            if (gCurrentPinballGame->unk13 < 3)
+            {
+                if (gCurrentPinballGame->unk345 < 3)
+                {
+                    gCurrentPinballGame->unk345 = gCurrentPinballGame->unk345 + 1;
+                    gCurrentPinballGame->unk3C = 20000;
+                    m4aSongNumStart(SE_UNKNOWN_0xDE);
+                }
+                else
+                {
+                    gMain.unkF |= 0x1;
+                    gCurrentPinballGame->unkEA = 0;
+                    gCurrentPinballGame->unkEC = 920;
+                    gCurrentPinballGame->unkE8 = 0;
+                    gCurrentPinballGame->unkE6 = 0;
+                    gCurrentPinballGame->unkEE = 0;
+                    gCurrentPinballGame->unkF2 = 0;
+                    gCurrentPinballGame->unkFA = 1;
+                    gCurrentPinballGame->unkFB = 0;
+                    gCurrentPinballGame->unk346 = 1;
+                    gCurrentPinballGame->unk348 = 0;
+                    m4aMPlayStop(&gMPlayInfo_BGM);
+                    gCurrentPinballGame->unk3C = 200000;
+                    m4aSongNumStart(SE_UNKNOWN_0xDF);
+                }
+            }
+            else
+            {
+                if (gCurrentPinballGame->unk345 < 3)
+                {
+                    gCurrentPinballGame->unk345++;
+                    gCurrentPinballGame->unk3C = 20000;
+                    m4aSongNumStart(SE_UNKNOWN_0xDE);
+                }
+            }
+
+            index = gCurrentPinballGame->unk345;
+            DmaCopy16(3, &gUnknown_08490A4C[index], (void *)0x600D900, 0x440);
+            gCurrentPinballGame->unk344 = 0;
+        }
+        break;
+    case 1:
+        if (gCurrentPinballGame->unk348 < 270)
+        {
+            index = (gCurrentPinballGame->unk348 % 60) / 30 + 4;
+            DmaCopy16(3, &gUnknown_08490A4C[index], (void *)0x600D900, 0x440);
+        }
+        else
+        {
+            index = 0;
+            DmaCopy16(3, &gUnknown_08490A4C[index], (void *)0x600D900, 0x440);
+            gCurrentPinballGame->unk346 = 2;
+            gCurrentPinballGame->unk345 = 0;
+        }
+
+        if (gCurrentPinballGame->unk348 == 60)
+        {
+            m4aSongNumStart(MUS_EGG_MODE_START);
+            gCurrentPinballGame->unk728 = 0;
+            gCurrentPinballGame->unk1EC = 5;
+            gCurrentPinballGame->unk1ED = 12;
+            gCurrentPinballGame->unk1F0 = 0;
+        }
+
+        gCurrentPinballGame->unk348++;
+        break;
+    case 3:
+        if (gUnknown_086AE5A0[gCurrentPinballGame->unk345][1] > gCurrentPinballGame->unk348)
+        {
+            gCurrentPinballGame->unk348++;
+        }
+        else
+        {
+            gCurrentPinballGame->unk348 = 0;
+            gCurrentPinballGame->unk345++;
+            if (gCurrentPinballGame->unk345 == 10)
+                gCurrentPinballGame->unk346 = 4;
+            
+            if (gCurrentPinballGame->unk345 == 6)
+                m4aSongNumStart(SE_UNKNOWN_0xE0);
+
+            index = gUnknown_086AE5A0[gCurrentPinballGame->unk345][0];
+            DmaCopy16(3, &gUnknown_08490A4C[index], (void *)0x600D900, 0x440);
+        }
+        
+        if (gCurrentPinballGame->unk345 < 6)
+        {
+            gCurrentPinballGame->unk200 = 280;
+        }
+        else
+        {
+            gCurrentPinballGame->unk200 += 6;
+            if (gCurrentPinballGame->unk346 == 4)
+                gCurrentPinballGame->unk200 = gCurrentPinballGame->unk200 + 20;
+        }
+        break;
+    case 4:
+        if (gCurrentPinballGame->unk343 && gCurrentPinballGame->unk344)
+        {
+            gMain.unkF |= 0x1;
+            gCurrentPinballGame->unkEA = 0;
+            gCurrentPinballGame->unkEC = 160;
+            gCurrentPinballGame->unkE8 = 0;
+            gCurrentPinballGame->unkE6 = 0;
+            gCurrentPinballGame->unkEE = 0;
+            gCurrentPinballGame->unkF2 = 0;
+            gCurrentPinballGame->unkFA = 1;
+            gCurrentPinballGame->unkFB = 0;
+            gCurrentPinballGame->unk346 = 5;
+            gCurrentPinballGame->unk348 = 0;
+            gCurrentPinballGame->unk345 = 10;
+            m4aSongNumStart(SE_UNKNOWN_0xE0);
+            gCurrentPinballGame->unk1EC = 1;
+            gCurrentPinballGame->unk1F4 = 2080;
+            gCurrentPinballGame->unk1F6 = 960;
+        }
+
+        gCurrentPinballGame->unk344 = 0;
+        break;
+    case 5:
+        if (gUnknown_086AE5A0[gCurrentPinballGame->unk345][1] > gCurrentPinballGame->unk348)
+        {
+            gCurrentPinballGame->unk348++;
+        }
+        else
+        {
+            gCurrentPinballGame->unk348 = 0;
+            gCurrentPinballGame->unk345++;
+            if (gCurrentPinballGame->unk345 == 15)
+                gCurrentPinballGame->unk346 = 6;
+
+            index = gUnknown_086AE5A0[gCurrentPinballGame->unk345][0];
+            DmaCopy16(3, gUnknown_08490A4C[index], (void *)0x600D900, 0x440);
+        }
+
+        if (gCurrentPinballGame->unk345 == 14 && gCurrentPinballGame->unk348 == 10)
+            m4aSongNumStart(SE_UNKNOWN_0xE1);
+
+        if (gCurrentPinballGame->unk1F6 > 700)
+            gCurrentPinballGame->unk1F6 -= 5;
+        else
+            gCurrentPinballGame->unk1F6 = 700;
+        break;
+    case 6:
+        gCurrentPinballGame->unk345 = 0;
+        gCurrentPinballGame->unk348 = 0;
+        gCurrentPinballGame->unk346 = 0;
+        gCurrentPinballGame->unk343 = 0;
+        break;
+    }
+
+    for (i = 0; i < 4; i++)
+    {
+        group = &gMain.spriteGroups[47 + i];
+        if (group->available)
+        {
+            if (gUnknown_086AE58A[gCurrentPinballGame->unk355[i]][0] > gCurrentPinballGame->unk35E[i])
+            {
+                gCurrentPinballGame->unk35E[i]++;
+            }
+            else
+            {
+                gCurrentPinballGame->unk35E[i] = 0;
+                gCurrentPinballGame->unk355[i]++;
+                if (gCurrentPinballGame->unk355[i] == 6)
+                {
+                    group->available = 0;
+                    gCurrentPinballGame->unk355[i] = 5;
+                }
+            }
+
+            index = gUnknown_086AE588[gCurrentPinballGame->unk355[i]][0];
+            DmaCopy16(3, &gUnknown_0845A08C[index], (void *)0x060140a0 + i * 0x100, 0x100);
+            group->baseX = gUnknown_086AE554[gCurrentPinballGame->unk359[i]].x - gCurrentPinballGame->unk58;
+            group->baseY = gUnknown_086AE554[gCurrentPinballGame->unk359[i]].y - gCurrentPinballGame->unk5A;
+            for (j = 0; j < 3; j++)
+            {
+                oamSimple = &group->oam[j];
+                gOamBuffer[oamSimple->oamId].x = oamSimple->xOffset + group->baseX;
+                gOamBuffer[oamSimple->oamId].y = oamSimple->yOffset + group->baseY;
+            } 
+        }
+    }   
+}
 
 void sub_31B30(void)
 {