Start decompiling berry_crush.c

9 files changed, 806 insertions, 1293 deletions

diff --git a/asm/berry_crush.s b/asm/berry_crush.s
index 9286a9b4f..00bff2b56 100755
--- a/asm/berry_crush.s
+++ b/asm/berry_crush.s
@@ -5,1291 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8020C00
-sub_8020C00: @ 8020C00
-	ldr r0, =gUnknown_02022C90
-	ldr r0, [r0]
-	bx lr
-	.pool
-	thumb_func_end sub_8020C00
-
-	thumb_func_start sub_8020C0C
-sub_8020C0C: @ 8020C0C
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	ldr r5, =gUnknown_02022C90
-	ldr r0, [r5]
-	cmp r0, 0
-	bne _08020C20
-	movs r0, 0x2
-	b _08020C5C
-	.pool
-_08020C20:
-	cmp r4, 0
-	bne _08020C26
-	ldr r4, [r0]
-_08020C26:
-	ldrb r0, [r0, 0xA]
-	bl DestroyTask
-	ldr r0, [r5]
-	bl Free
-	movs r0, 0
-	str r0, [r5]
-	adds r0, r4, 0
-	bl SetMainCallback2
-	ldr r0, =CB2_ReturnToField
-	cmp r4, r0
-	bne _08020C5A
-	ldr r2, =gTextFlags
-	ldrb r0, [r2]
-	movs r1, 0x4
-	orrs r0, r1
-	strb r0, [r2]
-	movs r0, 0xC8
-	lsls r0, 1
-	bl PlayNewMapMusic
-	ldr r0, =CB1_Overworld
-	bl SetMainCallback1
-_08020C5A:
-	movs r0, 0
-_08020C5C:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8020C0C
-
-	thumb_func_start sub_8020C70
-sub_8020C70: @ 8020C70
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0xC
-	adds r4, r0, 0
-	movs r0, 0
-	mov r8, r0
-	ldr r0, =gReceivedRemoteLinkPlayers
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _08020C8E
-	ldr r0, =gWirelessCommType
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _08020CAC
-_08020C8E:
-	adds r0, r4, 0
-	bl SetMainCallback2
-	ldr r0, =gUnknown_03005000
-	mov r1, r8
-	strh r1, [r0, 0x10]
-	strh r1, [r0, 0x12]
-	b _08020CF8
-	.pool
-_08020CAC:
-	bl GetLinkPlayerCount
-	lsls r0, 24
-	lsrs r0, 24
-	mov r8, r0
-	bl GetMultiplayerId
-	lsls r0, 24
-	lsrs r7, r0, 24
-	mov r0, r8
-	cmp r0, 0x1
-	bls _08020CC8
-	cmp r7, r8
-	bcc _08020CDC
-_08020CC8:
-	adds r0, r4, 0
-	bl SetMainCallback2
-	ldr r0, =gUnknown_03005000
-	movs r1, 0
-	strh r1, [r0, 0x10]
-	strh r1, [r0, 0x12]
-	b _08020CF8
-	.pool
-_08020CDC:
-	ldr r6, =gUnknown_02022C90
-	ldr r0, =0x000041c0
-	bl AllocZeroed
-	adds r5, r0, 0
-	str r5, [r6]
-	cmp r5, 0
-	bne _08020D10
-	adds r0, r4, 0
-	bl SetMainCallback2
-	ldr r0, =gUnknown_03005000
-	strh r5, [r0, 0x10]
-	strh r5, [r0, 0x12]
-_08020CF8:
-	adds r0, 0xEE
-	ldrb r1, [r0]
-	movs r1, 0x1
-	strb r1, [r0]
-	b _08020D74
-	.pool
-_08020D10:
-	str r4, [r5]
-	movs r4, 0
-	strb r7, [r5, 0x8]
-	ldr r0, [r6]
-	mov r1, r8
-	strb r1, [r0, 0x9]
-	ldr r0, [r6]
-	bl sub_8020FC4
-	ldr r1, [r6]
-	movs r2, 0x1
-	movs r0, 0x1
-	strh r0, [r1, 0x12]
-	strb r2, [r1, 0xE]
-	ldr r1, [r6]
-	movs r0, 0x6
-	strb r0, [r1, 0xF]
-	ldr r0, [r6]
-	adds r0, 0x36
-	movs r2, 0x1
-	negs r2, r2
-	movs r1, 0x10
-	str r1, [sp]
-	str r4, [sp, 0x4]
-	str r4, [sp, 0x8]
-	movs r1, 0x1
-	movs r3, 0
-	bl sub_8024604
-	ldr r2, [r6]
-	adds r2, 0x36
-	movs r0, 0x4
-	movs r1, 0x1
-	bl sub_8022BEC
-	ldr r0, =sub_8020F88
-	bl SetMainCallback2
-	ldr r0, =sub_8020FA0
-	movs r1, 0x8
-	bl CreateTask
-	ldr r1, [r6]
-	strb r0, [r1, 0xA]
-	ldr r2, =gTextFlags
-	ldrb r1, [r2]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r1
-	strb r0, [r2]
-_08020D74:
-	add sp, 0xC
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8020C70
-
-	thumb_func_start sub_8020D8C
-sub_8020D8C: @ 8020D8C
-	push {r4,lr}
-	sub sp, 0xC
-	ldr r1, =gSpecialVar_ItemId
-	ldrh r0, [r1]
-	subs r0, 0x85
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x2B
-	bls _08020DA8
-	movs r0, 0x85
-	strh r0, [r1]
-	b _08020DB0
-	.pool
-_08020DA8:
-	ldrh r0, [r1]
-	movs r1, 0x1
-	bl RemoveBagItem
-_08020DB0:
-	ldr r4, =gUnknown_02022C90
-	ldr r2, [r4]
-	ldrb r0, [r2, 0x8]
-	lsls r0, 5
-	adds r0, r2, r0
-	ldr r1, =gSpecialVar_ItemId
-	ldrh r1, [r1]
-	subs r1, 0x85
-	adds r0, 0xA4
-	movs r3, 0
-	strh r1, [r0]
-	movs r0, 0x1
-	strb r0, [r2, 0xE]
-	ldr r1, [r4]
-	movs r0, 0x9
-	strb r0, [r1, 0xF]
-	ldr r0, [r4]
-	adds r0, 0x36
-	movs r2, 0x1
-	negs r2, r2
-	movs r1, 0x10
-	str r1, [sp]
-	str r3, [sp, 0x4]
-	str r3, [sp, 0x8]
-	movs r1, 0
-	bl sub_8024604
-	ldr r2, [r4]
-	adds r2, 0x36
-	movs r0, 0x4
-	movs r1, 0x1
-	bl sub_8022BEC
-	ldr r0, =sub_8020FA0
-	movs r1, 0x8
-	bl CreateTask
-	ldr r1, [r4]
-	strb r0, [r1, 0xA]
-	ldr r0, =sub_8020F88
-	bl SetMainCallback2
-	add sp, 0xC
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8020D8C
-
-	thumb_func_start sub_8020E1C
-sub_8020E1C: @ 8020E1C
-	push {lr}
-	ldr r0, =gUnknown_02022C90
-	ldr r0, [r0]
-	ldrb r0, [r0, 0xA]
-	bl DestroyTask
-	ldr r0, =sub_8020D8C
-	bl sub_81AABF0
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8020E1C
-
-	thumb_func_start sub_8020E3C
-sub_8020E3C: @ 8020E3C
-	push {lr}
-	ldr r0, =sub_8020F74
-	bl SetVBlankCallback
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8020E3C
-
-	thumb_func_start sub_8020E4C
-sub_8020E4C: @ 8020E4C
-	push {lr}
-	movs r0, 0
-	bl SetVBlankCallback
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8020E4C
-
-	thumb_func_start sub_8020E58
-sub_8020E58: @ 8020E58
-	push {r4-r6,lr}
-	ldr r4, =gUnknown_02022C90
-	ldr r0, [r4]
-	adds r0, 0x6C
-	ldrh r2, [r0]
-	lsls r2, 8
-	movs r1, 0xF0
-	lsls r1, 6
-	adds r0, r2, 0
-	bl sub_81515FC
-	adds r2, r0, 0
-	ldr r0, [r4]
-	adds r0, 0x72
-	ldrh r3, [r0]
-	lsls r3, 8
-	adds r0, r3, 0
-	adds r1, r2, 0
-	bl sub_81515FC
-	adds r3, r0, 0
-	ldr r0, =0x0000ffff
-	ands r3, r0
-	ldr r2, [r4]
-	strh r3, [r2, 0x16]
-	ldrb r0, [r2, 0x9]
-	cmp r0, 0x3
-	beq _08020EDC
-	cmp r0, 0x3
-	bgt _08020EA4
-	cmp r0, 0x2
-	beq _08020EAE
-	b _08020F48
-	.pool
-_08020EA4:
-	cmp r0, 0x4
-	beq _08020EEC
-	cmp r0, 0x5
-	beq _08020F20
-	b _08020F48
-_08020EAE:
-	ldr r5, =gSaveBlock2Ptr
-	ldr r1, [r5]
-	movs r0, 0xF6
-	lsls r0, 1
-	adds r1, r0
-	lsls r0, r3, 16
-	lsrs r0, 16
-	ldrh r1, [r1]
-	cmp r0, r1
-	bls _08020F48
-	adds r2, 0x25
-	ldrb r0, [r2]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r2]
-	ldr r0, [r5]
-	ldr r1, [r4]
-	ldrh r1, [r1, 0x16]
-	movs r2, 0xF6
-	lsls r2, 1
-	b _08020F14
-	.pool
-_08020EDC:
-	ldr r5, =gSaveBlock2Ptr
-	ldr r0, [r5]
-	movs r6, 0xF7
-	lsls r6, 1
-	b _08020F28
-	.pool
-_08020EEC:
-	ldr r5, =gSaveBlock2Ptr
-	ldr r1, [r5]
-	movs r0, 0xF8
-	lsls r0, 1
-	adds r1, r0
-	lsls r0, r3, 16
-	lsrs r0, 16
-	ldrh r1, [r1]
-	cmp r0, r1
-	bls _08020F48
-	adds r2, 0x25
-	ldrb r0, [r2]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r2]
-	ldr r0, [r5]
-	ldr r1, [r4]
-	ldrh r1, [r1, 0x16]
-	movs r2, 0xF8
-	lsls r2, 1
-_08020F14:
-	adds r0, r2
-	strh r1, [r0]
-	b _08020F48
-	.pool
-_08020F20:
-	ldr r5, =gSaveBlock2Ptr
-	ldr r0, [r5]
-	movs r6, 0xF9
-	lsls r6, 1
-_08020F28:
-	adds r1, r0, r6
-	lsls r0, r3, 16
-	lsrs r0, 16
-	ldrh r1, [r1]
-	cmp r0, r1
-	bls _08020F48
-	adds r2, 0x25
-	ldrb r0, [r2]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r2]
-	ldr r1, [r5]
-	ldr r0, [r4]
-	ldrh r0, [r0, 0x16]
-	adds r1, r6
-	strh r0, [r1]
-_08020F48:
-	ldr r4, =gUnknown_02022C90
-	ldr r1, [r4]
-	ldr r0, [r1, 0x68]
-	str r0, [r1, 0x1C]
-	bl GiveBerryPowder
-	lsls r0, 24
-	cmp r0, 0
-	bne _08020F66
-	ldr r0, [r4]
-	adds r0, 0x25
-	ldrb r1, [r0]
-	movs r2, 0x1
-	orrs r1, r2
-	strb r1, [r0]
-_08020F66:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8020E58
-
-	thumb_func_start sub_8020F74
-sub_8020F74: @ 8020F74
-	push {lr}
-	bl TransferPlttBuffer
-	bl LoadOam
-	bl ProcessSpriteCopyRequests
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8020F74
-
-	thumb_func_start sub_8020F88
-sub_8020F88: @ 8020F88
-	push {lr}
-	bl RunTasks
-	bl RunTextPrinters
-	bl AnimateSprites
-	bl BuildOamBuffer
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8020F88
-
-	thumb_func_start sub_8020FA0
-sub_8020FA0: @ 8020FA0
-	push {r4,lr}
-	ldr r4, =gUnknown_02022C90
-	ldr r0, [r4]
-	ldr r2, [r0, 0x4]
-	cmp r2, 0
-	beq _08020FB4
-	adds r1, r0, 0
-	adds r1, 0x36
-	bl _call_via_r2
-_08020FB4:
-	ldr r0, [r4]
-	bl sub_8021450
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8020FA0
-
-	thumb_func_start sub_8020FC4
-sub_8020FC4: @ 8020FC4
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	movs r5, 0
-	b _08020FE6
-_08020FCC:
-	lsls r0, r5, 5
-	adds r0, 0x98
-	adds r0, r6, r0
-	lsls r1, r5, 3
-	subs r1, r5
-	lsls r1, 2
-	ldr r2, =gLinkPlayers + 8
-	adds r1, r2
-	bl StringCopy
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-_08020FE6:
-	ldrb r0, [r6, 0x9]
-	cmp r5, r0
-	bcc _08020FCC
-	cmp r5, 0x4
-	bhi _08021012
-_08020FF0:
-	lsls r4, r5, 5
-	adds r0, r4, 0
-	adds r0, 0x98
-	adds r0, r6, r0
-	movs r1, 0x1
-	movs r2, 0x7
-	bl memset
-	adds r4, r6, r4
-	adds r4, 0x9F
-	movs r0, 0xFF
-	strb r0, [r4]
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x4
-	bls _08020FF0
-_08021012:
-	ldr r0, =gSaveBlock2Ptr
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x14]
-	lsls r0, 29
-	lsrs r0, 29
-	cmp r0, 0x1
-	beq _0802103E
-	cmp r0, 0x1
-	bgt _08021034
-	cmp r0, 0
-	beq _0802103A
-	b _08021046
-	.pool
-_08021034:
-	cmp r0, 0x2
-	beq _08021042
-	b _08021046
-_0802103A:
-	movs r0, 0x8
-	b _08021044
-_0802103E:
-	movs r0, 0x4
-	b _08021044
-_08021042:
-	movs r0, 0x1
-_08021044:
-	strb r0, [r6, 0xB]
-_08021046:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8020FC4
-
-	thumb_func_start sub_802104C
-sub_802104C: @ 802104C
-	push {r4,r5,lr}
-	sub sp, 0xC
-	bl sub_8020C00
-	adds r5, r0, 0
-	cmp r5, 0
-	bne _08021060
-	movs r0, 0x1
-	negs r0, r0
-	b _08021304
-_08021060:
-	ldrb r0, [r5, 0xC]
-	cmp r0, 0x9
-	bls _08021068
-	b _080212FC
-_08021068:
-	lsls r0, 2
-	ldr r1, =_08021078
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.pool
-	.align 2, 0
-_08021078:
-	.4byte _080210A0
-	.4byte _080210BE
-	.4byte _080210E4
-	.4byte _080210F2
-	.4byte _08021178
-	.4byte _080211BE
-	.4byte _080211EC
-	.4byte _0802121C
-	.4byte _08021278
-	.4byte _080212B4
-_080210A0:
-	movs r0, 0
-	bl SetVBlankCallback
-	movs r0, 0
-	bl SetHBlankCallback
-	movs r0, 0
-	movs r1, 0
-	bl SetGpuReg
-	bl ScanlineEffect_Stop
-	bl reset_temp_tile_data_buffers
-	b _080212FC
-_080210BE:
-	add r0, sp, 0x8
-	movs r4, 0
-	strh r4, [r0]
-	movs r1, 0xE0
-	lsls r1, 19
-	ldr r2, =0x01000200
-	bl CpuSet
-	ldr r0, =gReservedSpritePaletteCount
-	strb r4, [r0]
-	movs r0, 0x3
-	bl sub_8034C54
-	b _080212FC
-	.pool
-_080210E4:
-	bl ResetPaletteFade
-	bl ResetSpriteData
-	bl FreeAllSpritePalettes
-	b _080212FC
-_080210F2:
-	movs r0, 0
-	bl ResetBgsAndClearDma3BusyFlags
-	ldr r1, =gUnknown_082F32C8
-	movs r0, 0
-	movs r2, 0x4
-	bl InitBgsFromTemplates
-	movs r0, 0xE0
-	lsls r0, 1
-	adds r1, r5, r0
-	movs r0, 0x1
-	bl SetBgTilemapBuffer
-	movs r0, 0x87
-	lsls r0, 6
-	adds r1, r5, r0
-	movs r0, 0x2
-	bl SetBgTilemapBuffer
-	movs r0, 0xC7
-	lsls r0, 6
-	adds r1, r5, r0
-	movs r0, 0x3
-	bl SetBgTilemapBuffer
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	movs r0, 0x50
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x52
-	movs r1, 0
-	bl SetGpuReg
-	b _080212FC
-	.pool
-_08021178:
-	movs r4, 0x20
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	movs r0, 0x40
-	str r0, [sp, 0x4]
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	b _080212FC
-_080211BE:
-	movs r0, 0
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x1
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x2
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x3
-	bl CopyBgTilemapBufferToVram
-	ldr r1, =gUnknown_08DE34B8
-	movs r0, 0
-	str r0, [sp]
-	movs r0, 0x1
-	movs r2, 0
-	movs r3, 0
-	bl decompress_and_copy_tile_data_to_vram
-	b _080212FC
-	.pool
-_080211EC:
-	bl free_temp_tile_data_buffers_if_possible
-	lsls r0, 24
-	cmp r0, 0
-	beq _080211F8
-	b _08021302
-_080211F8:
-	bl InitStandardTextBoxWindows
-	bl sub_8197200
-	adds r0, r5, 0
-	bl sub_8022588
-	adds r0, r5, 0
-	bl sub_8022600
-	ldr r0, =gPaletteFade
-	ldrb r1, [r0, 0x8]
-	movs r2, 0x80
-	orrs r1, r2
-	strb r1, [r0, 0x8]
-	b _080212FC
-	.pool
-_0802121C:
-	ldr r0, =gUnknown_08DE3398
-	movs r2, 0xC0
-	lsls r2, 1
-	movs r1, 0
-	bl LoadPalette
-	ldr r1, =gBerryCrushGrinderTopTilemap
-	movs r0, 0x1
-	movs r2, 0
-	movs r3, 0
-	bl CopyToBgTilemapBuffer
-	ldr r1, =gBerryCrushContainerCapTilemap
-	movs r0, 0x2
-	movs r2, 0
-	movs r3, 0
-	bl CopyToBgTilemapBuffer
-	ldr r1, =gBerryCrushBackgroundTilemap
-	movs r0, 0x3
-	movs r2, 0
-	movs r3, 0
-	bl CopyToBgTilemapBuffer
-	adds r0, r5, 0
-	bl sub_80226D0
-	movs r0, 0x1
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x2
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x3
-	bl CopyBgTilemapBufferToVram
-	b _080212FC
-	.pool
-_08021278:
-	bl sub_800E0E8
-	movs r0, 0
-	movs r1, 0
-	bl CreateWirelessStatusIndicatorSprite
-	adds r0, r5, 0
-	bl sub_8022730
-	ldr r0, =gSpriteCoordOffsetY
-	ldrh r1, [r0]
-	negs r1, r1
-	lsls r1, 16
-	lsrs r1, 16
-	movs r0, 0x16
-	bl SetGpuReg
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	b _080212FC
-	.pool
-_080212B4:
-	ldr r2, =gPaletteFade
-	ldrb r1, [r2, 0x8]
-	movs r0, 0x7F
-	ands r0, r1
-	strb r0, [r2, 0x8]
-	movs r0, 0x1
-	negs r0, r0
-	movs r1, 0x10
-	movs r2, 0
-	bl BlendPalettes
-	movs r0, 0
-	bl ShowBg
-	movs r0, 0x1
-	bl ShowBg
-	movs r0, 0x2
-	bl ShowBg
-	movs r0, 0x3
-	bl ShowBg
-	movs r1, 0x82
-	lsls r1, 5
-	movs r0, 0
-	bl SetGpuRegBits
-	bl sub_8020E3C
-	movs r0, 0
-	strb r0, [r5, 0xC]
-	movs r0, 0x1
-	b _08021304
-	.pool
-_080212FC:
-	ldrb r0, [r5, 0xC]
-	adds r0, 0x1
-	strb r0, [r5, 0xC]
-_08021302:
-	movs r0, 0
-_08021304:
-	add sp, 0xC
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_802104C
-
-	thumb_func_start sub_802130C
-sub_802130C: @ 802130C
-	push {r4,r5,lr}
-	sub sp, 0x8
-	bl sub_8020C00
-	adds r5, r0, 0
-	cmp r5, 0
-	bne _08021320
-	movs r0, 0x1
-	negs r0, r0
-	b _08021446
-_08021320:
-	ldrb r0, [r5, 0xC]
-	cmp r0, 0x7
-	bls _08021328
-	b _0802143E
-_08021328:
-	lsls r0, 2
-	ldr r1, =_08021338
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.pool
-	.align 2, 0
-_08021338:
-	.4byte _08021358
-	.4byte _0802135E
-	.4byte _08021368
-	.4byte _0802137E
-	.4byte _0802138A
-	.4byte _080213E6
-	.4byte _08021426
-	.4byte _08021436
-_08021358:
-	bl sub_8010434
-	b _0802143E
-_0802135E:
-	bl IsLinkTaskFinished
-	lsls r0, 24
-	cmp r0, 0
-	beq _08021444
-_08021368:
-	movs r0, 0x1
-	negs r0, r0
-	movs r1, 0
-	str r1, [sp]
-	movs r2, 0
-	movs r3, 0x10
-	bl BeginNormalPaletteFade
-	bl UpdatePaletteFade
-	b _0802143E
-_0802137E:
-	bl UpdatePaletteFade
-	lsls r0, 24
-	cmp r0, 0
-	beq _0802143E
-	b _08021444
-_0802138A:
-	movs r4, 0x20
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	movs r0, 0
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x1
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x2
-	bl CopyBgTilemapBufferToVram
-	movs r0, 0x3
-	bl CopyBgTilemapBufferToVram
-	b _0802143E
-_080213E6:
-	bl FreeAllWindowBuffers
-	movs r0, 0
-	bl HideBg
-	movs r0, 0
-	bl UnsetBgTilemapBuffer
-	movs r0, 0x1
-	bl HideBg
-	movs r0, 0x1
-	bl UnsetBgTilemapBuffer
-	movs r0, 0x2
-	bl HideBg
-	movs r0, 0x2
-	bl UnsetBgTilemapBuffer
-	movs r0, 0x3
-	bl HideBg
-	movs r0, 0x3
-	bl UnsetBgTilemapBuffer
-	movs r1, 0x82
-	lsls r1, 5
-	movs r0, 0
-	bl ClearGpuRegBits
-	b _0802143E
-_08021426:
-	bl sub_800E084
-	adds r0, r5, 0
-	bl sub_8022960
-	bl sub_8034CC8
-	b _0802143E
-_08021436:
-	movs r0, 0
-	strb r0, [r5, 0xC]
-	movs r0, 0x1
-	b _08021446
-_0802143E:
-	ldrb r0, [r5, 0xC]
-	adds r0, 0x1
-	strb r0, [r5, 0xC]
-_08021444:
-	movs r0, 0
-_08021446:
-	add sp, 0x8
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_802130C
-
-	thumb_func_start sub_8021450
-sub_8021450: @ 8021450
-	push {r4,lr}
-	adds r4, r0, 0
-	ldr r0, =gSpriteCoordOffsetY
-	ldrh r1, [r4, 0x2C]
-	ldrh r2, [r4, 0x2A]
-	adds r1, r2
-	strh r1, [r0]
-	negs r1, r1
-	lsls r1, 16
-	lsrs r1, 16
-	movs r0, 0x16
-	bl SetGpuReg
-	ldrh r0, [r4, 0x12]
-	cmp r0, 0x7
-	bne _0802147C
-	movs r1, 0x9C
-	lsls r1, 1
-	adds r0, r4, r1
-	ldrh r1, [r4, 0x28]
-	bl sub_8022524
-_0802147C:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8021450
-
-	thumb_func_start sub_8021488
-sub_8021488: @ 8021488
-	movs r1, 0
-	ldr r2, =0x0000ff98
-	strh r2, [r0, 0x2A]
-	strh r1, [r0, 0x2C]
-	ldr r0, =gSpriteCoordOffsetX
-	strh r1, [r0]
-	ldr r0, =gSpriteCoordOffsetY
-	strh r2, [r0]
-	bx lr
-	.pool
-	thumb_func_end sub_8021488
-
-	thumb_func_start sub_80214A8
-sub_80214A8: @ 80214A8
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0x8
-	mov r10, r0
-	str r1, [sp]
-	movs r0, 0
-	mov r9, r0
-	mov r1, r10
-	ldrb r1, [r1, 0x9]
-	cmp r9, r1
-	bcc _080214C6
-	b _080215E4
-_080214C6:
-	ldr r1, =gUnknown_082F41E8
-	mov r2, r9
-	lsls r0, r2, 1
-	adds r0, r1
-	ldrh r2, [r0]
-	mov r1, r9
-	lsls r0, r1, 5
-	add r0, r10
-	adds r0, 0xA4
-	ldrh r3, [r0]
-	adds r3, 0x85
-	lsls r3, 16
-	lsrs r3, 16
-	ldr r0, =gUnknown_082F436C
-	adds r1, r2, 0
-	bl AddCustomItemIconSprite
-	lsls r0, 24
-	lsrs r0, 24
-	mov r2, r9
-	lsls r3, r2, 2
-	ldr r1, [sp]
-	adds r1, 0x38
-	adds r6, r1, r3
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, =gSprites
-	adds r1, r0
-	str r1, [r6]
-	ldrb r0, [r1, 0x5]
-	movs r2, 0xC
-	orrs r0, r2
-	strb r0, [r1, 0x5]
-	ldr r2, [r6]
-	adds r2, 0x2C
-	ldrb r0, [r2]
-	movs r1, 0x80
-	orrs r0, r1
-	strb r0, [r2]
-	ldr r1, [r6]
-	ldr r0, [sp]
-	adds r0, 0xC
-	adds r0, r3
-	mov r8, r0
-	ldr r0, [r0]
-	ldrh r0, [r0, 0x8]
-	adds r0, 0x78
-	strh r0, [r1, 0x20]
-	ldr r1, [r6]
-	ldr r0, =0x0000fff0
-	strh r0, [r1, 0x22]
-	ldr r3, [r6]
-	adds r5, r3, 0
-	adds r5, 0x2E
-	movs r0, 0x80
-	lsls r0, 2
-	strh r0, [r5, 0x2]
-	movs r0, 0x20
-	strh r0, [r5, 0x4]
-	movs r0, 0x70
-	strh r0, [r5, 0xE]
-	mov r2, r8
-	ldr r1, [r2]
-	ldrh r0, [r1, 0xA]
-	ldrh r1, [r1, 0x8]
-	subs r0, r1
-	lsls r0, 16
-	asrs r1, r0, 16
-	adds r0, r1, 0
-	cmp r1, 0
-	bge _08021558
-	adds r0, r1, 0x3
-_08021558:
-	asrs r0, 2
-	strh r0, [r5, 0xC]
-	lsls r0, r1, 23
-	lsrs r7, r0, 16
-	movs r2, 0x80
-	lsls r2, 2
-	adds r2, 0x20
-	lsrs r2, 1
-	movs r0, 0x7
-	movs r1, 0xFE
-	lsls r1, 6
-	str r3, [sp, 0x4]
-	bl sub_81515D4
-	adds r4, r0, 0
-	ldr r0, [r6]
-	ldrh r0, [r0, 0x20]
-	lsls r0, 7
-	ldr r3, [sp, 0x4]
-	strh r0, [r3, 0x2E]
-	lsls r1, r7, 16
-	asrs r1, 16
-	lsls r4, 16
-	asrs r4, 16
-	movs r0, 0x7
-	adds r2, r4, 0
-	bl sub_81515D4
-	strh r0, [r5, 0x6]
-	movs r0, 0x7
-	adds r1, r4, 0
-	movs r2, 0x55
-	bl sub_8151550
-	adds r2, r0, 0
-	movs r0, 0
-	strh r0, [r5, 0x8]
-	lsls r2, 16
-	asrs r2, 16
-	movs r0, 0x7
-	movs r1, 0xFE
-	lsls r1, 6
-	bl sub_81515D4
-	strh r0, [r5, 0xA]
-	ldrh r0, [r5, 0xE]
-	ldr r2, =0xffff8000
-	adds r1, r2, 0
-	orrs r0, r1
-	strh r0, [r5, 0xE]
-	mov r1, r8
-	ldr r0, [r1]
-	movs r2, 0x8
-	ldrsh r0, [r0, r2]
-	cmp r0, 0
-	bge _080215D0
-	ldr r0, [r6]
-	movs r1, 0x1
-	bl StartSpriteAffineAnim
-_080215D0:
-	mov r0, r9
-	adds r0, 0x1
-	lsls r0, 24
-	lsrs r0, 24
-	mov r9, r0
-	mov r0, r10
-	ldrb r0, [r0, 0x9]
-	cmp r9, r0
-	bcs _080215E4
-	b _080214C6
-_080215E4:
-	add sp, 0x8
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80214A8
-
-	thumb_func_start sub_8021608
-sub_8021608: @ 8021608
-	push {r4-r6,lr}
-	adds r5, r0, 0
-	adds r4, r5, 0
-	adds r4, 0x2E
-	ldrh r0, [r4, 0x4]
-	ldrh r1, [r4, 0x2]
-	adds r0, r1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	asrs r0, 24
-	ldrh r2, [r5, 0x26]
-	adds r0, r2
-	strh r0, [r5, 0x26]
-	movs r1, 0xE
-	ldrsh r0, [r4, r1]
-	movs r6, 0x80
-	lsls r6, 8
-	ands r0, r6
-	cmp r0, 0
-	beq _0802166E
-	ldrh r0, [r4, 0x6]
-	ldrh r2, [r5, 0x2E]
-	adds r0, r2
-	strh r0, [r5, 0x2E]
-	ldrh r0, [r4, 0xA]
-	ldrh r1, [r4, 0x8]
-	adds r0, r1
-	strh r0, [r4, 0x8]
-	lsls r0, 16
-	asrs r0, 23
-	movs r2, 0xC
-	ldrsh r1, [r4, r2]
-	bl Sin
-	strh r0, [r5, 0x24]
-	movs r1, 0xE
-	ldrsh r0, [r4, r1]
-	ands r0, r6
-	cmp r0, 0
-	beq _0802166E
-	ldrh r0, [r4, 0x8]
-	lsls r0, 16
-	asrs r0, 23
-	cmp r0, 0x7E
-	ble _0802166E
-	movs r0, 0
-	strh r0, [r5, 0x24]
-	ldrh r1, [r4, 0xE]
-	ldr r0, =0x00007fff
-	ands r0, r1
-	strh r0, [r4, 0xE]
-_0802166E:
-	ldrh r0, [r4]
-	lsls r0, 16
-	asrs r0, 23
-	strh r0, [r5, 0x20]
-	movs r2, 0x22
-	ldrsh r1, [r5, r2]
-	movs r2, 0x26
-	ldrsh r0, [r5, r2]
-	adds r1, r0
-	ldrh r2, [r4, 0xE]
-	ldr r0, =0x00007fff
-	ands r0, r2
-	cmp r1, r0
-	blt _0802169A
-	ldr r0, =SpriteCallbackDummy
-	str r0, [r5, 0x1C]
-	adds r0, r5, 0
-	bl FreeSpriteOamMatrix
-	adds r0, r5, 0
-	bl DestroySprite
-_0802169A:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8021608
-
-	thumb_func_start sub_80216A8
-sub_80216A8: @ 80216A8
-	push {r4-r7,lr}
-	adds r6, r0, 0
-	movs r5, 0
-	ldrb r0, [r6, 0x9]
-	cmp r5, r0
-	bcs _080216D4
-	ldr r7, =gUnknown_082F41E8
-_080216B6:
-	lsls r0, r5, 1
-	adds r0, r7
-	ldrh r4, [r0]
-	adds r0, r4, 0
-	bl FreeSpritePaletteByTag
-	adds r0, r4, 0
-	bl FreeSpriteTilesByTag
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	ldrb r0, [r6, 0x9]
-	cmp r5, r0
-	bcc _080216B6
-_080216D4:
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80216A8
-
 	thumb_func_start sub_80216E0
 sub_80216E0: @ 80216E0
 	push {r4-r7,lr}
diff --git a/data/berry_crush.s b/data/berry_crush.s
index 4e3c77292..6535cd558 100755
--- a/data/berry_crush.s
+++ b/data/berry_crush.s
@@ -151,10 +151,22 @@ gUnknown_082F4190:: @ 82F4190
 
 	.align 2
 gUnknown_082F41CC:: @ 82F41CC
-	.byte 0x00, 0x00, 0xff, 0x00, 0x01, 0x01, 0x00, 0x00
-	.byte 0xf0, 0xfc, 0x10, 0xfc, 0xf8, 0xfe, 0x08, 0xfe
-	.byte 0xe8, 0xf8, 0x18, 0xf8, 0xe0, 0xf4, 0x20, 0xf4
-	.byte 0xd8, 0xf0, 0x28, 0xf0
+	.byte 0x00, 0x00
+	.byte 0xff, 0x00
+	.byte 0x01, 0x01
+
+gUnknown_082F41D2::
+	.byte 0x00, 0x00
+	.byte 0xf0, 0xfc
+	.byte 0x10, 0xfc
+	.byte 0xf8, 0xfe
+	.byte 0x08, 0xfe
+	.byte 0xe8, 0xf8
+	.byte 0x18, 0xf8
+	.byte 0xe0, 0xf4
+	.byte 0x20, 0xf4
+	.byte 0xd8, 0xf0
+	.byte 0x28, 0xf0
 
 	.align 2
 gUnknown_082F41E8:: @ 82F41E8
diff --git a/include/berry_crush.h b/include/berry_crush.h
new file mode 100755
index 000000000..101450a33
--- /dev/null
+++ b/include/berry_crush.h
@@ -0,0 +1,6 @@
+#ifndef GUARD_BERRY_CRUSH_H
+#define GUARD_BERRY_CRUSH_H
+
+void sub_8020C70(MainCallback callback);
+
+#endif // GUARD_BERRY_CRUSH_H
diff --git a/include/graphics.h b/include/graphics.h
index 7833d4f7d..e6d6ae350 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -4917,8 +4917,12 @@ extern const u16 gLinkMiscMenu_Pal[];
 extern const u32 gLinkMiscMenu_Gfx[];
 extern const u32 gLinkMiscMenu_Tilemap[];
 
-// Pokeblock
+// Use Pokeblock
 extern const u8 gPokenavConditionCancel_Gfx[];
 extern const u16 gPokenavConditionCancel_Pal[];
 
+// Berry Crush
+extern const u32 gUnknown_08DE34B8[];
+extern const u16 gUnknown_08DE3398[];
+
 #endif //GUARD_GRAPHICS_H
diff --git a/include/item_icon.h b/include/item_icon.h
index b702b2045..af03473fb 100644
--- a/include/item_icon.h
+++ b/include/item_icon.h
@@ -10,7 +10,7 @@ bool8 AllocItemIconTemporaryBuffers(void);
 void FreeItemIconTemporaryBuffers(void);
 void CopyItemIconPicTo4x4Buffer(const void *src, void *dest);
 u8 AddItemIconSprite(u16 tilesTag, u16 paletteTag, u16 itemId);
-u8 AddCustomItemIconSprite(struct SpriteTemplate *customSpriteTemplate, u16 tilesTag, u16 paletteTag, u16 itemId);
+u8 AddCustomItemIconSprite(const struct SpriteTemplate *customSpriteTemplate, u16 tilesTag, u16 paletteTag, u16 itemId);
 const void *GetItemIconPicOrPalette(u16 itemId, u8 which);
 
 #endif //GUARD_ITEM_ICON_H
diff --git a/ld_script.txt b/ld_script.txt
index f1ed87a04..97eb046b9 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -63,6 +63,7 @@ SECTIONS {
         asm/mevent_server_helpers.o(.text);
         src/mevent_news.o(.text);
         src/union_room_chat.o(.text);
+        src/berry_crush.o(.text);
         asm/berry_crush.o(.text);
         src/berry_powder.o(.text);
         asm/dodrio_berry_picking.o(.text);
diff --git a/src/berry_crush.c b/src/berry_crush.c
new file mode 100755
index 000000000..dc4c546b0
--- /dev/null
+++ b/src/berry_crush.c
@@ -0,0 +1,775 @@
+#include "global.h"
+#include "alloc.h"
+#include "berry_powder.h"
+#include "bg.h"
+#include "event_data.h"
+#include "gpu_regs.h"
+#include "graphics.h"
+#include "item_icon.h"
+#include "item_menu.h"
+#include "link.h"
+#include "link_rfu.h"
+#include "main.h"
+#include "math_util.h"
+#include "menu.h"
+#include "overworld.h"
+#include "palette.h"
+#include "rom_8034C54.h"
+#include "scanline_effect.h"
+#include "sound.h"
+#include "sprite.h"
+#include "string_util.h"
+#include "task.h"
+#include "text.h"
+#include "trig.h"
+#include "window.h"
+#include "constants/items.h"
+#include "constants/rgb.h"
+#include "constants/songs.h"
+
+struct BerryCrushGame_Player
+{
+    u16 unk0;
+    u8 filler2[0x12];
+    u8 unk14[0xC];
+};
+
+struct BerryCrushGame_PlayersSeparate
+{
+    struct BerryCrushGame_Player player;
+    struct BerryCrushGame_Player others[4];
+};
+
+typedef union BerryCrushGame_Players
+{
+    struct BerryCrushGame_Player players[5];
+    struct BerryCrushGame_PlayersSeparate separate;
+} BerryCrushGame_Players;
+
+struct BerryCrushGame_138_C
+{
+    u8 filler0[0x8];
+    s16 unk8;
+    u16 unkA;
+};
+
+struct BerryCrushGame_138
+{
+    u8 filler0[0xC];
+    struct BerryCrushGame_138_C *unkC[5];
+    u8 filler1C[0x4];
+    struct Sprite *unk24[5];
+    struct Sprite *unk38[5];
+    struct Sprite *unk4C[5];
+    struct Sprite *unk60[5];
+    struct Sprite *unk74[5];
+};
+
+struct BerryCrushGame_4E
+{
+    u8 filler0[0x4];
+    u8 unk4;
+    u8 filler5[0x5];
+    u16 unkA;
+    u16 unkC;
+};
+
+struct __attribute__((packed)) BerryCrushGame_40
+{
+    u8 filler0[0xE];
+    struct BerryCrushGame_4E unkE;
+};
+
+struct BerryCrushGame
+{
+    MainCallback unk0;
+    void (* unk4)(struct BerryCrushGame *, u8 *);
+    u8 unk8;
+    u8 unk9;
+    u8 unkA;
+    u8 unkB;
+    u8 unkC;
+    u8 fillerD[0x1];
+    u8 unkE;
+    u8 unkF;
+    u8 filler10[0x2];
+    u16 unk12;
+    u8 filler14[0x2];
+    u16 unk16;
+    u8 filler18[0x4];
+    int unk1C;
+    u8 filler20[0x5];
+    u8 unk25_0:1;
+    u8 unk25_1:1;
+    u8 unk25_2:1;
+    u8 filler26[0x2];
+    u16 unk28;
+    u16 unk2A;
+    u16 unk2C;
+    u8 filler2E[0x8];
+    u8 unk36[0xA];
+    struct BerryCrushGame_40 unk40;
+    u8 filler60[0x8];
+    int unk68;
+    u16 unk6C;
+    u8 filler6E[0x4];
+    u16 unk72;
+    u8 filler74[0x10];
+    BerryCrushGame_Players unk84;
+    u8 filler124[0x14];
+    struct BerryCrushGame_138 unk138;
+    u8 unk1C0[0x1000];
+    u8 unk11C0[0x1000];
+    u8 unk21C0[0x1000];
+    u8 unk31C0[0x1000];
+};
+
+static void sub_8020F74(void);
+static void sub_8020F88(void);
+static void sub_8020FA0(u8);
+void sub_8020FC4(struct BerryCrushGame *);
+void sub_8022BEC(u16, u8, u8 *);
+void sub_8024604(u8 *, u8, s8, u8, u8, u8, u8);
+static int sub_8021450(struct BerryCrushGame *);
+void sub_8022588(struct BerryCrushGame *);
+void sub_8022600(struct BerryCrushGame *);
+void sub_80226D0(struct BerryCrushGame *);
+void sub_8022730(struct BerryCrushGame *);
+void sub_8022960(struct BerryCrushGame *);
+void sub_8022524(struct BerryCrushGame_138 *, u16);
+void sub_8022B28(struct Sprite *);
+
+extern struct BerryCrushGame *gUnknown_02022C90;
+
+extern const struct BgTemplate gUnknown_082F32C8[4];
+extern const u8 gBerryCrushGrinderTopTilemap[];
+extern const u8 gBerryCrushContainerCapTilemap[];
+extern const u8 gBerryCrushBackgroundTilemap[];
+extern const struct SpriteTemplate gUnknown_082F436C;
+extern const u16 gUnknown_082F41E8[];
+extern const s8 gUnknown_082F41CC[][2];
+extern const s8 gUnknown_082F41D2[][2];
+
+struct BerryCrushGame *sub_8020C00(void)
+{
+    return gUnknown_02022C90;
+}
+
+int sub_8020C0C(MainCallback callback)
+{
+    if (!gUnknown_02022C90)
+        return 2;
+
+    if (!callback)
+        callback = gUnknown_02022C90->unk0;
+
+    DestroyTask(gUnknown_02022C90->unkA);
+    FREE_AND_SET_NULL(gUnknown_02022C90);
+    SetMainCallback2(callback);
+    if (callback == CB2_ReturnToField)
+    {
+        gTextFlags.autoScroll = 1;
+        PlayNewMapMusic(MUS_POKECEN);
+        SetMainCallback1(CB1_Overworld);
+    }
+
+    return 0;
+}
+
+void sub_8020C70(MainCallback callback)
+{
+    u8 playerCount = 0;
+    u8 multiplayerId;
+
+    if (!gReceivedRemoteLinkPlayers || gWirelessCommType == 0)
+    {
+        SetMainCallback2(callback);
+        gUnknown_03005000.unk_10 = 0;
+        gUnknown_03005000.unk_12 = 0;
+        gUnknown_03005000.unk_ee = 1;
+        return;
+    }
+
+    playerCount = GetLinkPlayerCount();
+    multiplayerId = GetMultiplayerId();
+    if (playerCount < 2 || multiplayerId >= playerCount)
+    {
+        SetMainCallback2(callback);
+        gUnknown_03005000.unk_10 = 0;
+        gUnknown_03005000.unk_12 = 0;
+        gUnknown_03005000.unk_ee = 1;
+        return;
+    }
+
+    gUnknown_02022C90 = AllocZeroed(sizeof(*gUnknown_02022C90));
+    if (!gUnknown_02022C90)
+    {
+        SetMainCallback2(callback);
+        gUnknown_03005000.unk_10 = 0;
+        gUnknown_03005000.unk_12 = 0;
+        gUnknown_03005000.unk_ee = 1;
+        return;
+    }
+
+    gUnknown_02022C90->unk0 = callback;
+    gUnknown_02022C90->unk8 = multiplayerId;
+    gUnknown_02022C90->unk9 = playerCount;
+    sub_8020FC4(gUnknown_02022C90);
+    gUnknown_02022C90->unk12 = 1;
+    gUnknown_02022C90->unkE = 1;
+    gUnknown_02022C90->unkF = 6;
+    sub_8024604(gUnknown_02022C90->unk36, 1, -1, 0, 16, 0, 0);
+    sub_8022BEC(4, 1, gUnknown_02022C90->unk36);
+    SetMainCallback2(sub_8020F88);
+    gUnknown_02022C90->unkA = CreateTask(sub_8020FA0, 8);
+    gTextFlags.autoScroll = 0;
+}
+
+static void sub_8020D8C(void)
+{
+    if (gSpecialVar_ItemId < FIRST_BERRY_INDEX || gSpecialVar_ItemId > LAST_BERRY_INDEX + 1)
+        gSpecialVar_ItemId = ITEM_CHERI_BERRY;
+    else
+        RemoveBagItem(gSpecialVar_ItemId, 1);
+
+    gUnknown_02022C90->unk84.separate.others[gUnknown_02022C90->unk8].unk0 = gSpecialVar_ItemId - FIRST_BERRY_INDEX;
+    gUnknown_02022C90->unkE = 1;
+    gUnknown_02022C90->unkF = 9;
+    sub_8024604(gUnknown_02022C90->unk36, 0, -1, 0, 16, 0, 0);
+    sub_8022BEC(4, 1, gUnknown_02022C90->unk36);
+    gUnknown_02022C90->unkA = CreateTask(sub_8020FA0, 8);
+    SetMainCallback2(sub_8020F88);
+}
+
+void sub_8020E1C(void)
+{
+    DestroyTask(gUnknown_02022C90->unkA);
+    sub_81AABF0(sub_8020D8C);
+}
+
+static void sub_8020E3C(void)
+{
+    SetVBlankCallback(sub_8020F74);
+}
+
+void sub_8020E4C(void)
+{
+    SetVBlankCallback(NULL);
+}
+
+void sub_8020E58(void)
+{
+    u32 var0, var1;
+
+    var0 = gUnknown_02022C90->unk6C;
+    var0 <<= 8;
+    var0 = sub_81515FC(var0, 60 << 8);
+    var1 = gUnknown_02022C90->unk72;
+    var1 <<= 8;
+    var1 = sub_81515FC(var1, var0) & 0xFFFF;
+    gUnknown_02022C90->unk16 = var1;
+    switch (gUnknown_02022C90->unk9)
+    {
+    case 2:
+        if (gUnknown_02022C90->unk16 > gSaveBlock2Ptr->berryCrush.berryCrushResults[0])
+        {
+            gUnknown_02022C90->unk25_1 = 1;
+            gSaveBlock2Ptr->berryCrush.berryCrushResults[0] = gUnknown_02022C90->unk16;
+        }
+        break;
+    case 3:
+        if (gUnknown_02022C90->unk16 > gSaveBlock2Ptr->berryCrush.berryCrushResults[1])
+        {
+            gUnknown_02022C90->unk25_1 = 1;
+            gSaveBlock2Ptr->berryCrush.berryCrushResults[1] = gUnknown_02022C90->unk16;
+        }
+        break;
+    case 4:
+        if (gUnknown_02022C90->unk16 > gSaveBlock2Ptr->berryCrush.berryCrushResults[2])
+        {
+            gUnknown_02022C90->unk25_1 = 1;
+            gSaveBlock2Ptr->berryCrush.berryCrushResults[2] = gUnknown_02022C90->unk16;
+        }
+        break;
+    case 5:
+        if (gUnknown_02022C90->unk16 > gSaveBlock2Ptr->berryCrush.berryCrushResults[3])
+        {
+            gUnknown_02022C90->unk25_1 = 1;
+            gSaveBlock2Ptr->berryCrush.berryCrushResults[3] = gUnknown_02022C90->unk16;
+        }
+        break;
+    }
+
+    gUnknown_02022C90->unk1C = gUnknown_02022C90->unk68;
+    if (GiveBerryPowder(gUnknown_02022C90->unk1C))
+        return;
+
+    gUnknown_02022C90->unk25_0 = 1;
+}
+
+static void sub_8020F74(void)
+{
+    TransferPlttBuffer();
+    LoadOam();
+    ProcessSpriteCopyRequests();
+}
+
+static void sub_8020F88(void)
+{
+    RunTasks();
+    RunTextPrinters();
+    AnimateSprites();
+    BuildOamBuffer();
+}
+
+static void sub_8020FA0(u8 taskId)
+{
+    if (gUnknown_02022C90->unk4)
+        gUnknown_02022C90->unk4(gUnknown_02022C90, gUnknown_02022C90->unk36);
+
+    sub_8021450(gUnknown_02022C90);
+}
+
+#ifdef NONMATCHING
+void sub_8020FC4(struct BerryCrushGame *arg0)
+{
+    u8 i;
+
+    for (i = 0; i < arg0->unk9; i++)
+        StringCopy(arg0->unk84.players[i].unk14, gLinkPlayers[i].name);
+    
+    for (; i < 5; i++)
+    {
+        memset(arg0->unk84.players[i].unk14, 1, PLAYER_NAME_LENGTH);
+        arg0->unk84.players[i].unk14[PLAYER_NAME_LENGTH] = EOS;
+    }
+
+    switch (gSaveBlock2Ptr->optionsTextSpeed)
+    {
+    case OPTIONS_TEXT_SPEED_SLOW:
+        arg0->unkB = 8;
+        break;
+    case OPTIONS_TEXT_SPEED_MID:
+        arg0->unkB = 4;
+        break;
+    case OPTIONS_TEXT_SPEED_FAST:
+        arg0->unkB = 1;
+        break;
+    }
+}
+#else
+NAKED
+void sub_8020FC4(struct BerryCrushGame *arg0)
+{
+    asm_unified("\n\
+    push {r4-r6,lr}\n\
+    adds r6, r0, 0\n\
+    movs r5, 0\n\
+    b _08020FE6\n\
+LOOP_1:\n\
+    lsls r0, r5, 5\n\
+    adds r0, 0x98\n\
+    adds r0, r6, r0\n\
+    lsls r1, r5, 3\n\
+    subs r1, r5\n\
+    lsls r1, 2\n\
+    ldr r2, =gLinkPlayers + 8\n\
+    adds r1, r2\n\
+    bl StringCopy\n\
+    adds r0, r5, 0x1\n\
+    lsls r0, 24\n\
+    lsrs r5, r0, 24\n\
+_08020FE6:\n\
+    ldrb r0, [r6, 0x9]\n\
+    cmp r5, r0\n\
+    bcc LOOP_1\n\
+    cmp r5, 0x4\n\
+    bhi _08021012\n\
+_08020FF0:\n\
+    lsls r4, r5, 5\n\
+    adds r0, r4, 0\n\
+    adds r0, 0x98\n\
+    adds r0, r6, r0\n\
+    movs r1, 0x1\n\
+    movs r2, 0x7\n\
+    bl memset\n\
+    adds r4, r6, r4\n\
+    adds r4, 0x9F\n\
+    movs r0, 0xFF\n\
+    strb r0, [r4]\n\
+    adds r0, r5, 0x1\n\
+    lsls r0, 24\n\
+    lsrs r5, r0, 24\n\
+    cmp r5, 0x4\n\
+    bls _08020FF0\n\
+_08021012:\n\
+    ldr r0, =gSaveBlock2Ptr\n\
+    ldr r0, [r0]\n\
+    ldrb r0, [r0, 0x14]\n\
+    lsls r0, 29\n\
+    lsrs r0, 29\n\
+    cmp r0, 0x1\n\
+    beq _0802103E\n\
+    cmp r0, 0x1\n\
+    bgt _08021034\n\
+    cmp r0, 0\n\
+    beq _0802103A\n\
+    b _08021046\n\
+    .pool\n\
+_08021034:\n\
+    cmp r0, 0x2\n\
+    beq _08021042\n\
+    b _08021046\n\
+_0802103A:\n\
+    movs r0, 0x8\n\
+    b _08021044\n\
+_0802103E:\n\
+    movs r0, 0x4\n\
+    b _08021044\n\
+_08021042:\n\
+    movs r0, 0x1\n\
+_08021044:\n\
+    strb r0, [r6, 0xB]\n\
+_08021046:\n\
+    pop {r4-r6}\n\
+    pop {r0}\n\
+    bx r0");
+}
+#endif // NONMATCHING
+
+int sub_802104C(void)
+{
+    struct BerryCrushGame *var0 = sub_8020C00();
+    if (!var0)
+        return -1;
+
+    switch (var0->unkC)
+    {
+    case 0:
+        SetVBlankCallback(NULL);
+        SetHBlankCallback(NULL);
+        SetGpuReg(REG_OFFSET_DISPCNT, 0);
+        ScanlineEffect_Stop();
+        reset_temp_tile_data_buffers();
+        break;
+    case 1:
+        CpuFill16(0, (void *)OAM, OAM_SIZE);
+        gReservedSpritePaletteCount = 0;
+        sub_8034C54(3);
+        break;
+    case 2:
+        ResetPaletteFade();
+        ResetSpriteData();
+        FreeAllSpritePalettes();
+        break;
+    case 3:
+        ResetBgsAndClearDma3BusyFlags(0);
+        InitBgsFromTemplates(0, gUnknown_082F32C8, ARRAY_COUNT(gUnknown_082F32C8));
+        SetBgTilemapBuffer(1, var0->unk1C0);
+        SetBgTilemapBuffer(2, var0->unk21C0);
+        SetBgTilemapBuffer(3, var0->unk31C0);
+        ChangeBgX(0, 0, 0);
+        ChangeBgY(0, 0, 0);
+        ChangeBgX(2, 0, 0);
+        ChangeBgY(2, 0, 0);
+        ChangeBgX(3, 0, 0);
+        ChangeBgY(3, 0, 0);
+        SetGpuReg(REG_OFFSET_BLDCNT, 0);
+        SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+        break;
+    case 4:
+        FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 32, 32);
+        FillBgTilemapBufferRect_Palette0(1, 0, 0, 0, 32, 64);
+        FillBgTilemapBufferRect_Palette0(2, 0, 0, 0, 32, 32);
+        FillBgTilemapBufferRect_Palette0(3, 0, 0, 0, 32, 32);
+        break;
+    case 5:
+        CopyBgTilemapBufferToVram(0);
+        CopyBgTilemapBufferToVram(1);
+        CopyBgTilemapBufferToVram(2);
+        CopyBgTilemapBufferToVram(3);
+        decompress_and_copy_tile_data_to_vram(1, gUnknown_08DE34B8, 0, 0, 0);
+        break;
+    case 6:
+        if (free_temp_tile_data_buffers_if_possible())
+            return 0;
+
+        InitStandardTextBoxWindows();
+        sub_8197200();
+        sub_8022588(var0);
+        sub_8022600(var0);
+        gPaletteFade.bufferTransferDisabled = 1;
+        break;
+    case 7:
+        LoadPalette(gUnknown_08DE3398, 0, 0x180);
+        CopyToBgTilemapBuffer(1, gBerryCrushGrinderTopTilemap, 0, 0);
+        CopyToBgTilemapBuffer(2, gBerryCrushContainerCapTilemap, 0, 0);
+        CopyToBgTilemapBuffer(3, gBerryCrushBackgroundTilemap, 0, 0);
+        sub_80226D0(var0);
+        CopyBgTilemapBufferToVram(1);
+        CopyBgTilemapBufferToVram(2);
+        CopyBgTilemapBufferToVram(3);
+        break;
+    case 8:
+        sub_800E0E8();
+        CreateWirelessStatusIndicatorSprite(0,  0);
+        sub_8022730(var0);
+        SetGpuReg(REG_OFFSET_BG1VOFS, -gSpriteCoordOffsetY);
+        ChangeBgX(1, 0, 0);
+        ChangeBgY(1, 0, 0);
+        break;
+    case 9:
+        gPaletteFade.bufferTransferDisabled = 0;
+        BlendPalettes(0xFFFFFFFF, 16, RGB_BLACK);
+        ShowBg(0);
+        ShowBg(1);
+        ShowBg(2);
+        ShowBg(3);
+        SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
+        sub_8020E3C();
+        var0->unkC = 0;
+        return 1;
+    }
+
+    var0->unkC++;
+    return 0;
+}
+
+int sub_802130C(void)
+{
+    struct BerryCrushGame *var0 = sub_8020C00();
+    if (!var0)
+        return -1;
+
+    switch (var0->unkC)
+    {
+    case 0:
+        sub_8010434();
+        break;
+    case 1:
+        if (!IsLinkTaskFinished())
+            return 0;
+        // fall through. The original author forgot to use "break" here
+        // because this will call BeginNormalPaletteFade() twice.
+    case 2:
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 0, 16, RGB_BLACK);
+        UpdatePaletteFade();
+        break;
+    case 3:
+        if (UpdatePaletteFade())
+            return 0;
+        break;
+    case 4:
+        FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 32, 32);
+        FillBgTilemapBufferRect_Palette0(1, 0, 0, 0, 32, 32);
+        FillBgTilemapBufferRect_Palette0(2, 0, 0, 0, 32, 32);
+        FillBgTilemapBufferRect_Palette0(3, 0, 0, 0, 32, 32);
+        CopyBgTilemapBufferToVram(0);
+        CopyBgTilemapBufferToVram(1);
+        CopyBgTilemapBufferToVram(2);
+        CopyBgTilemapBufferToVram(3);
+        break;
+    case 5:
+        FreeAllWindowBuffers();
+        HideBg(0);
+        UnsetBgTilemapBuffer(0);
+        HideBg(1);
+        UnsetBgTilemapBuffer(1);
+        HideBg(2);
+        UnsetBgTilemapBuffer(2);
+        HideBg(3);
+        UnsetBgTilemapBuffer(3);
+        ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
+        break;
+    case 6:
+        sub_800E084();
+        sub_8022960(var0);
+        sub_8034CC8();
+        break;
+    case 7:
+        var0->unkC = 0;
+        return 1;
+    }
+
+    var0->unkC++;
+    return 0;
+}
+
+static int sub_8021450(struct BerryCrushGame *arg0)
+{
+    gSpriteCoordOffsetY = arg0->unk2A + arg0->unk2C;
+    SetGpuReg(REG_OFFSET_BG1VOFS, -gSpriteCoordOffsetY);
+    if (arg0->unk12 == 7)
+    {
+        sub_8022524(&arg0->unk138, arg0->unk28);
+    }
+
+    return 0;
+}
+
+void sub_8021488(struct BerryCrushGame *arg0)
+{
+    arg0->unk2A = -104;
+    arg0->unk2C = 0;
+    gSpriteCoordOffsetX = 0;
+    gSpriteCoordOffsetY = -104;
+}
+
+void sub_80214A8(struct BerryCrushGame *arg0, struct BerryCrushGame_138 *arg1)
+{
+    u8 i;
+    u8 spriteId;
+    s16 var0, var1;
+    s16 *data;
+    int var3;
+    s16 var5;
+    u32 var6;
+
+    for (i = 0; i < arg0->unk9; i++)
+    {
+        spriteId = AddCustomItemIconSprite(
+            &gUnknown_082F436C,
+            gUnknown_082F41E8[i],
+            gUnknown_082F41E8[i],
+            arg0->unk84.separate.others[i].unk0 + 133);
+        arg1->unk38[i] = &gSprites[spriteId];
+        arg1->unk38[i]->oam.priority = 3;
+        arg1->unk38[i]->affineAnimPaused = 1;
+        arg1->unk38[i]->pos1.x = arg1->unkC[i]->unk8 + 120;
+        arg1->unk38[i]->pos1.y = -16;
+        data = arg1->unk38[i]->data;
+        var5 = 512;
+        data[1] = var5;
+        data[2] = 32;
+        data[7] = 112;
+        var0 = arg1->unkC[i]->unkA - arg1->unkC[i]->unk8;
+        var3 = var0;
+        if (var0 < 0)
+            var3 += 3;
+
+        data[6] = var3 >> 2;
+        var0 *= 128;
+        var6 = var5 + 32;
+        var6 = var6 / 2;
+        var1 = sub_81515D4(7, 0x3F80, var6);
+        data[0] = (u16)arg1->unk38[i]->pos1.x * 128;
+        data[3] = sub_81515D4(7, var0, var1);
+        var1 = sub_8151550(7, var1, 85);
+        data[4] = 0;
+        data[5] = sub_81515D4(7, 0x3F80, var1);
+        data[7] |= 0x8000;
+        if (arg1->unkC[i]->unk8 < 0)
+            StartSpriteAffineAnim(arg1->unk38[i], 1);
+    }
+}
+
+void sub_8021608(struct Sprite *sprite)
+{
+    s16 *data = sprite->data;
+
+    data[1] += data[2];
+    sprite->pos2.y += data[1] >> 8;
+    if (data[7] & 0x8000)
+    {
+        sprite->data[0] += data[3];
+        data[4] += data[5];
+        sprite->pos2.x = Sin(data[4] >> 7, data[6]);
+        if ((data[7] & 0x8000) && (data[4] >> 7) > 126)
+        {
+            sprite->pos2.x = 0;
+            data[7] &= 0x7FFF;
+        }
+    }
+
+    sprite->pos1.x = data[0] >> 7;
+    if (sprite->pos1.y + sprite->pos2.y >= (data[7] & 0x7FFF))
+    {
+        sprite->callback = SpriteCallbackDummy;
+        FreeSpriteOamMatrix(sprite);
+        DestroySprite(sprite);
+    }
+}
+
+void sub_80216A8(struct BerryCrushGame *arg0)
+{
+    u8 i;
+    for (i = 0; i < arg0->unk9; i++)
+    {
+        FreeSpritePaletteByTag(gUnknown_082F41E8[i]);
+        FreeSpriteTilesByTag(gUnknown_082F41E8[i]);
+    }
+}
+
+// void sub_80216E0(struct BerryCrushGame *arg0, struct BerryCrushGame_138 *arg1)
+// {
+//     u8 sp4;
+//     struct BerryCrushGame_4E *var4E;
+//     u8 i;
+//     u16 var0;
+
+//     sp4 = 0;
+//     var4E = &arg0->unk40.unkE;
+//     for (i = 0; i < arg0->unk9; i++)
+//     {
+//         var0 = var4E->unkA >> (i * 3);
+//         var0 &= 7;
+//         if (var0)
+//         {
+//             int offset;
+//             sp4++;
+//             if (var0 & 0x4)
+//                 StartSpriteAnim(arg1->unk24[i], 1);
+//             else
+//                 StartSpriteAnim(arg1->unk24[i], 0);
+
+//             arg1->unk24[i]->invisible = 0;
+//             arg1->unk24[i]->animPaused = 0;
+//             offset = (var0 % 4) - 1;
+//             arg1->unk24[i]->pos2.x = gUnknown_082F41CC[offset][0];
+//             arg1->unk24[i]->pos2.y = gUnknown_082F41CC[offset][1];
+//         }
+//     }
+
+//     if (sp4 == 0)
+//     {
+//         arg0->unk25_2 = 0;
+//     }
+//     else
+//     {
+//         u8 var3 = arg0->unk28 % 3;
+//         u16 var2 = var3;
+//         for (i = 0; i < var4E->unkC * 2 + 3; i++)
+//         {
+//             if (arg1->unk4C[i]->invisible)
+//             {
+//                 arg1->unk4C[i]->callback = sub_8022B28;
+//                 arg1->unk4C[i]->pos1.x = gUnknown_082F41D2[i][0] + 120;
+//                 arg1->unk4C[i]->pos1.y = gUnknown_082F41D2[i][1] + (136 - var2 * 4);
+//                 arg1->unk4C[i]->pos2.x = gUnknown_082F41D2[i][0] / (var3 * 4);
+//                 arg1->unk4C[i]->pos2.y = gUnknown_082F41D2[i][1];
+//                 if (var4E->unk4 & 0x2)
+//                     StartSpriteAnim(arg1->unk4C[i], 1);
+//                 else
+//                     StartSpriteAnim(arg1->unk4C[i], 0);
+
+//                 var2++;
+//                 if (var2 > 3)
+//                     var2 = 0;
+//             }
+//         }
+
+//         if (arg0->unk25_2)
+//         {
+//             arg0->unk25_2 = 0;
+//         }
+//         else
+//         {
+//             if (sp4 == 1)
+//                 PlaySE(SE_TOY_DANGO);
+//             else
+//                 PlaySE(SE_TOY_KABE);
+
+//             arg0->unk25_2 = 1;
+//         }
+//     }
+// }
diff --git a/src/item_icon.c b/src/item_icon.c
index 7bf1a29ca..91c32951a 100644
--- a/src/item_icon.c
+++ b/src/item_icon.c
@@ -122,7 +122,7 @@ u8 AddItemIconSprite(u16 tilesTag, u16 paletteTag, u16 itemId)
     }
 }
 
-u8 AddCustomItemIconSprite(struct SpriteTemplate *customSpriteTemplate, u16 tilesTag, u16 paletteTag, u16 itemId)
+u8 AddCustomItemIconSprite(const struct SpriteTemplate *customSpriteTemplate, u16 tilesTag, u16 paletteTag, u16 itemId)
 {
     if (!AllocItemIconTemporaryBuffers())
     {
diff --git a/src/union_room.c b/src/union_room.c
index 338063ef1..5050b04f1 100644
--- a/src/union_room.c
+++ b/src/union_room.c
@@ -44,6 +44,7 @@
 #include "easy_chat.h"
 #include "event_obj_lock.h"
 #include "union_room_chat.h"
+#include "berry_crush.h"
 
 EWRAM_DATA u8 gUnknown_02022C20[12] = {};
 EWRAM_DATA u8 gUnknown_02022C2C = 0;
@@ -98,7 +99,6 @@ void sub_801807C(struct TradeUnkStruct *arg0);
 void sub_801AC54(void);
 void sub_802A9A8(u8 monId, MainCallback callback);
 void sub_802493C(u8 monId, MainCallback callback);
-void sub_8020C70(MainCallback callback);
 void sub_80149D8(void);
 u16 sub_8019930(void);
 void sub_8018784(u8 windowId);