diff --git a/asm/include/main_0202760C.inc b/asm/include/main_0202760C.inc
index 4ead5556..71f3ae9f 100644
--- a/asm/include/main_0202760C.inc
+++ b/asm/include/main_0202760C.inc
@@ -1,4 +1,3 @@
 #pragma once
-.public WINDOW_LIST
 .public _022A88F0
 .public _022A88FC
diff --git a/asm/include/main_02027AA0.inc b/asm/include/main_02027AA0.inc
index f78d9864..94a3c8e2 100644
--- a/asm/include/main_02027AA0.inc
+++ b/asm/include/main_02027AA0.inc
@@ -1,21 +1,4 @@
 #pragma once
-.public InitWindowTrailer
-.public MemFree
-.public WINDOW_LIST
-.public _0209AC64
-.public _0209ACAC
 .public _020AFD4C
 .public _020AFD94
-.public _020AFD98
 .public _020AFD9C
-.public _022A7A6C
-.public _022A7A74
-.public _022A7AE4
-.public _022A88E4
-.public _022A88F0
-.public _022A88F8
-.public _022A8992
-.public memset
-.public sub_0200B3FC
-.public sub_02027974
-.public sub_0202836C
diff --git a/asm/include/main_02027B88.inc b/asm/include/main_02027B88.inc
new file mode 100644
index 00000000..405eb334
--- /dev/null
+++ b/asm/include/main_02027B88.inc
@@ -0,0 +1,17 @@
+#pragma once
+.public InitWindowTrailer
+.public MemFree
+.public UpdateWindow
+.public WINDOW_LIST
+.public _0209AC64
+.public _0209ACAC
+.public _020AFD4C
+.public _020AFD98
+.public _022A7A6C
+.public _022A7A74
+.public _022A7AE4
+.public _022A88E4
+.public _022A8992
+.public sub_0200B3FC
+.public sub_02027974
+.public sub_0202836C
diff --git a/asm/include/main_020282C8.inc b/asm/include/main_020282C8.inc
deleted file mode 100644
index c7e0fc86..00000000
--- a/asm/include/main_020282C8.inc
+++ /dev/null
@@ -1,4 +0,0 @@
-#pragma once
-.public WINDOW_LIST
-.public _022A88E4
-.public _022A8994
diff --git a/asm/main_0202760C.s b/asm/main_0202760C.s
index 24474f97..bb4e95d0 100644
--- a/asm/main_0202760C.s
+++ b/asm/main_0202760C.s
@@ -30,17 +30,3 @@ sub_0202796C_JP: ; 0x0202796C
 _02027980: .word _022A88F0
 	arm_func_end sub_0202796C_JP
 #endif
-
-	arm_func_start sub_02027624
-sub_02027624: ; 0x02027624
-	ldr r2, _02027644 ; =WINDOW_LIST
-	mov r1, #0xe0
-	mla r2, r0, r1, r2
-	ldrb r1, [r2, #6]
-	ldrb r0, [r2, #7]
-	smulbb r0, r1, r0
-	mov r0, r0, lsl #5
-	bx lr
-	.align 2, 0
-_02027644: .word WINDOW_LIST
-	arm_func_end sub_02027624
diff --git a/asm/main_02027AA0.s b/asm/main_02027AA0.s
index 22746859..12dd3990 100644
--- a/asm/main_02027AA0.s
+++ b/asm/main_02027AA0.s
@@ -35,593 +35,3 @@ _02027AE4: .word _020AFD4C
 _02027AE8: .word _020AFD9C
 _02027AEC: .word _020AFD94
 	arm_func_end sub_02027AA0
-
-	arm_func_start UpdateWindow
-UpdateWindow: ; 0x02027AF0
-	ldr r2, _02027B18 ; =WINDOW_LIST
-	mov r1, #0xe0
-	mla r1, r0, r1, r2
-	ldr r0, [r1, #0x14]
-	str r0, [r1, #0x24]
-	ldr r0, [r1, #0x18]
-	str r0, [r1, #0x28]
-	ldr r0, [r1, #0x1c]
-	str r0, [r1, #0x2c]
-	bx lr
-	.align 2, 0
-_02027B18: .word WINDOW_LIST
-	arm_func_end UpdateWindow
-
-	arm_func_start sub_02027B1C
-sub_02027B1C: ; 0x02027B1C
-	stmdb sp!, {r4, lr}
-	mov r4, r0
-	mov r0, #0xe0
-	mul r2, r4, r0
-	ldr r0, _02027B50 ; =_022A88F0
-	ldr r1, _02027B54 ; =_022A88F8
-	ldr r0, [r0, r2]
-	ldr r2, [r1, r2]
-	mov r1, #0
-	bl memset
-	mov r0, r4
-	bl UpdateWindow
-	ldmia sp!, {r4, pc}
-	.align 2, 0
-_02027B50: .word _022A88F0
-_02027B54: .word _022A88F8
-	arm_func_end sub_02027B1C
-
-	arm_func_start ClearWindow
-ClearWindow: ; 0x02027B58
-	mov r1, #0xe0
-	mul r2, r0, r1
-	ldr r0, _02027B7C ; =_022A88F0
-	ldr r1, _02027B80 ; =_022A88F8
-	ldr r0, [r0, r2]
-	ldr r2, [r1, r2]
-	ldr ip, _02027B84 ; =memset
-	mov r1, #0
-	bx ip
-	.align 2, 0
-_02027B7C: .word _022A88F0
-_02027B80: .word _022A88F8
-_02027B84: .word memset
-	arm_func_end ClearWindow
-
-	arm_func_start sub_02027B88
-sub_02027B88: ; 0x02027B88
-	stmdb sp!, {r4, r5, r6, r7, r8, sb, sl, lr}
-	sub sp, sp, #8
-	ldr r0, _02027E14 ; =_022A7A6C
-#ifdef JAPAN
-	ldrsb r2, [r0, #1]
-#else
-	ldrsb r2, [r0, #3]
-#endif
-	b _02027E00
-_02027B9C:
-	ldr r1, _02027E18 ; =WINDOW_LIST
-	mov r0, #0xe0
-	mla r4, r2, r0, r1
-	ldrb r0, [r4, #8]
-	cmp r0, #1
-	ldreqsb r0, [r4, #0xb6]
-	cmpeq r0, #2
-	bne _02027DFC
-	ldrsb r1, [r4, #9]
-	ldr r0, _02027E1C ; =_0209AC64
-	rsb r1, r1, #0
-	mov r1, r1, lsl #1
-	ldrsb r0, [r0, r1]
-	cmp r0, #0
-	bne _02027DF0
-	ldr r0, _02027E20 ; =_020AFD98
-	ldrb r1, [r4, #4]
-	ldrb r3, [r0, #1]
-	ldr r2, _02027E24 ; =_0209ACAC
-	sub r6, r1, #1
-	ldrb r2, [r2, r3]
-	ldrb r0, [r4, #5]
-	add r1, sp, #0
-	mov r5, r2, lsl #0xc
-	sub r3, r0, #1
-	orr r0, r5, #2
-	mov r2, r0, lsl #0x10
-	ldr r0, _02027E28 ; =_022A7AE4
-	str r6, [sp]
-	mov r2, r2, lsr #0x10
-	str r3, [sp, #4]
-	bl sub_0200B3FC
-	ldr r1, [sp]
-	orr r0, r5, #3
-	add r1, r1, #1
-	mov r0, r0, lsl #0x10
-	str r1, [sp]
-	mov r6, r0, lsr #0x10
-	ldr r8, _02027E28 ; =_022A7AE4
-	add r7, sp, #0
-	b _02027C5C
-_02027C40:
-	mov r0, r8
-	mov r1, r7
-	mov r2, r6
-	bl sub_0200B3FC
-	ldr r0, [sp]
-	add r0, r0, #1
-	str r0, [sp]
-_02027C5C:
-	ldrb r1, [r4, #4]
-	ldrb r0, [r4, #6]
-	ldr r2, [sp]
-	add r0, r1, r0
-	cmp r2, r0
-	blt _02027C40
-	orr r0, r5, #4
-	mov r2, r0, lsl #0x10
-	ldr r0, _02027E28 ; =_022A7AE4
-	add r1, sp, #0
-	mov r2, r2, lsr #0x10
-	bl sub_0200B3FC
-	ldr r0, [sp, #4]
-	orr r1, r5, #5
-	add r0, r0, #1
-	str r0, [sp, #4]
-	orr r0, r5, #1
-	orr r2, r5, #6
-	mov r0, r0, lsl #0x10
-	mov r1, r1, lsl #0x10
-	mov r2, r2, lsl #0x10
-	mov r7, r0, lsr #0x10
-	mov r8, r1, lsr #0x10
-	mov r6, r2, lsr #0x10
-	ldr sl, _02027E28 ; =_022A7AE4
-	add sb, sp, #0
-	b _02027D44
-_02027CC8:
-	ldrb r2, [r4, #4]
-	mov r0, sl
-	mov r1, sb
-	sub r3, r2, #1
-	mov r2, r8
-	str r3, [sp]
-	bl sub_0200B3FC
-	ldr r0, [sp]
-	add r0, r0, #1
-	str r0, [sp]
-	b _02027D10
-_02027CF4:
-	mov r0, sl
-	mov r1, sb
-	mov r2, r7
-	bl sub_0200B3FC
-	ldr r0, [sp]
-	add r0, r0, #1
-	str r0, [sp]
-_02027D10:
-	ldrb r1, [r4, #4]
-	ldrb r0, [r4, #6]
-	ldr r2, [sp]
-	add r0, r1, r0
-	cmp r2, r0
-	blt _02027CF4
-	mov r0, sl
-	mov r1, sb
-	mov r2, r6
-	bl sub_0200B3FC
-	ldr r0, [sp, #4]
-	add r0, r0, #1
-	str r0, [sp, #4]
-_02027D44:
-	ldrb r1, [r4, #5]
-	ldrb r0, [r4, #7]
-	ldr r2, [sp, #4]
-	add r0, r1, r0
-	cmp r2, r0
-	blt _02027CC8
-	ldrb r1, [r4, #4]
-	orr r0, r5, #7
-	mov r2, r0, lsl #0x10
-	sub r3, r1, #1
-	ldr r0, _02027E28 ; =_022A7AE4
-	add r1, sp, #0
-	str r3, [sp]
-	mov r2, r2, lsr #0x10
-	bl sub_0200B3FC
-	ldr r1, [sp]
-	orr r0, r5, #8
-	add r1, r1, #1
-	mov r0, r0, lsl #0x10
-	str r1, [sp]
-	mov r6, r0, lsr #0x10
-	ldr r8, _02027E28 ; =_022A7AE4
-	add r7, sp, #0
-	b _02027DC0
-_02027DA4:
-	mov r0, r8
-	mov r1, r7
-	mov r2, r6
-	bl sub_0200B3FC
-	ldr r0, [sp]
-	add r0, r0, #1
-	str r0, [sp]
-_02027DC0:
-	ldrb r1, [r4, #4]
-	ldrb r0, [r4, #6]
-	ldr r2, [sp]
-	add r0, r1, r0
-	cmp r2, r0
-	blt _02027DA4
-	orr r0, r5, #9
-	mov r2, r0, lsl #0x10
-	ldr r0, _02027E28 ; =_022A7AE4
-	add r1, sp, #0
-	mov r2, r2, lsr #0x10
-	bl sub_0200B3FC
-_02027DF0:
-	ldr r0, _02027E2C ; =_020AFD4C
-	mov r1, #1
-#ifdef JAPAN
-	strb r1, [r0]
-#else
-	strb r1, [r0, #3]
-#endif
-_02027DFC:
-	ldrsb r2, [r4, #0xb5]
-_02027E00:
-	mvn r0, #1
-	cmp r2, r0
-	bne _02027B9C
-	add sp, sp, #8
-	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, pc}
-	.align 2, 0
-_02027E14: .word _022A7A6C
-_02027E18: .word WINDOW_LIST
-_02027E1C: .word _0209AC64
-_02027E20: .word _020AFD98
-_02027E24: .word _0209ACAC
-_02027E28: .word _022A7AE4
-_02027E2C: .word _020AFD4C
-	arm_func_end sub_02027B88
-
-	arm_func_start sub_02027E30
-sub_02027E30: ; 0x02027E30
-	stmdb sp!, {r3, r4, r5, r6, r7, lr}
-	sub sp, sp, #8
-	ldr r3, _02028070 ; =WINDOW_LIST
-	mov r2, #0xe0
-	mla r7, r0, r2, r3
-	ldrsb r0, [r7, #9]
-	ldr r2, _02028074 ; =_0209AC64
-	cmp r1, #0
-	rsb r0, r0, #0
-	add r4, r2, r0, lsl #1
-	movne r0, #2
-	moveq r0, #3
-	strb r0, [r7, #0xb6]
-	ldrb r0, [r7, #8]
-	cmp r0, #1
-	bne _02027F34
-	cmp r1, #0
-	bne _02027F20
-	ldrsb r1, [r7, #0x10]
-	ldr r2, _02028070 ; =WINDOW_LIST
-	mov r0, #0xe0
-	mla r0, r1, r0, r2
-	add r0, r0, #0xbc
-	bl InitWindowTrailer
-	ldrsb r0, [r4]
-	cmp r0, #0
-	blt _02027F20
-	ldrb r0, [r7, #5]
-	ldr r6, _02028078 ; =_022A7AE4
-	add r5, sp, #0
-	sub r0, r0, #1
-	str r0, [sp, #4]
-	mov r4, #0
-	b _02027F08
-_02027EB8:
-	ldrb r0, [r7, #4]
-	sub r0, r0, #1
-	str r0, [sp]
-	b _02027EE4
-_02027EC8:
-	mov r0, r6
-	mov r1, r5
-	mov r2, r4
-	bl sub_0200B3FC
-	ldr r0, [sp]
-	add r0, r0, #1
-	str r0, [sp]
-_02027EE4:
-	ldrb r1, [r7, #4]
-	ldrb r0, [r7, #6]
-	ldr r2, [sp]
-	add r0, r1, r0
-	cmp r2, r0
-	ble _02027EC8
-	ldr r0, [sp, #4]
-	add r0, r0, #1
-	str r0, [sp, #4]
-_02027F08:
-	ldrb r1, [r7, #5]
-	ldrb r0, [r7, #7]
-	ldr r2, [sp, #4]
-	add r0, r1, r0
-	cmp r2, r0
-	ble _02027EB8
-_02027F20:
-	bl sub_02027B88
-	ldr r0, _0202807C ; =_020AFD4C
-	mov r1, #1
-#ifdef JAPAN
-	strb r1, [r0]
-#else
-	strb r1, [r0, #3]
-#endif
-	b _02028064
-_02027F34:
-	cmp r1, #0
-	beq _0202801C
-	ldrb r1, [r7, #4]
-	mvn r0, #3
-	mov r1, r1, lsl #3
-	strh r1, [r7, #0x34]
-	ldrb r1, [r7, #5]
-	mov r1, r1, lsl #3
-	strh r1, [r7, #0x36]
-	ldrb r1, [r7, #6]
-	mov r1, r1, lsl #3
-	strh r1, [r7, #0x38]
-	ldrb r1, [r7, #7]
-	mov r1, r1, lsl #3
-	strh r1, [r7, #0x3a]
-	ldrh r1, [r7, #0x34]
-	strh r1, [r7, #0x74]
-	ldrh r1, [r7, #0x36]
-	strh r1, [r7, #0x76]
-	ldrh r1, [r7, #0x38]
-	strh r1, [r7, #0x78]
-	ldrh r1, [r7, #0x3a]
-	strh r1, [r7, #0x7a]
-	ldrsh r1, [r7, #0x74]
-	sub r1, r1, #8
-	strh r1, [r7, #0x74]
-	ldrsh r1, [r7, #0x76]
-	sub r1, r1, #8
-	strh r1, [r7, #0x76]
-	ldrsh r1, [r7, #0x78]
-	add r1, r1, #0x10
-	strh r1, [r7, #0x78]
-	ldrsh r1, [r7, #0x7a]
-	add r1, r1, #0x10
-	strh r1, [r7, #0x7a]
-	ldrsb r1, [r7, #9]
-	cmp r1, r0
-	beq _02027FFC
-	ldrsh r0, [r7, #0x34]
-	sub r0, r0, #1
-	strh r0, [r7, #0x34]
-	ldrsh r0, [r7, #0x36]
-	sub r0, r0, #2
-	strh r0, [r7, #0x36]
-	ldrsh r0, [r7, #0x38]
-	add r0, r0, #2
-	strh r0, [r7, #0x38]
-	ldrsh r0, [r7, #0x3a]
-	add r0, r0, #6
-	strh r0, [r7, #0x3a]
-_02027FFC:
-	ldr r0, _0202807C ; =_020AFD4C
-	ldrb r0, [r0, #1]
-	cmp r0, #0
-	movne r0, #0x90
-	strneb r0, [r7, #0x63]
-	moveq r0, #0xff
-	streqb r0, [r7, #0x63]
-	b _02028064
-_0202801C:
-	ldrsb r1, [r7, #0x10]
-	ldr r2, _02028070 ; =WINDOW_LIST
-	mov r0, #0xe0
-	mla r0, r1, r0, r2
-	add r0, r0, #0xbc
-	bl InitWindowTrailer
-	mov r0, #0
-	strh r0, [r7, #0x3a]
-	strh r0, [r7, #0x38]
-	strh r0, [r7, #0x36]
-	strh r0, [r7, #0x34]
-	strh r0, [r7, #0x74]
-	ldrh r0, [r7, #0x36]
-	strh r0, [r7, #0x76]
-	ldrh r0, [r7, #0x38]
-	strh r0, [r7, #0x78]
-	ldrh r0, [r7, #0x3a]
-	strh r0, [r7, #0x7a]
-_02028064:
-	mov r0, #1
-	add sp, sp, #8
-	ldmia sp!, {r3, r4, r5, r6, r7, pc}
-	.align 2, 0
-_02028070: .word WINDOW_LIST
-_02028074: .word _0209AC64
-_02028078: .word _022A7AE4
-_0202807C: .word _020AFD4C
-	arm_func_end sub_02027E30
-
-	arm_func_start sub_02028080
-sub_02028080: ; 0x02028080
-	stmdb sp!, {r4, lr}
-	ldr r3, _020280B8 ; =WINDOW_LIST
-	mov r2, #0xe0
-	mla r4, r0, r2, r3
-	strb r1, [r4, #9]
-	ldrsb r0, [r4, #0x10]
-	bl UpdateWindow
-	ldr r0, _020280BC ; =_020AFD4C
-	ldrb r1, [r4, #8]
-	ldr r3, [r0, #8]
-	mov r2, #1
-	orr r1, r3, r2, lsl r1
-	str r1, [r0, #8]
-	ldmia sp!, {r4, pc}
-	.align 2, 0
-_020280B8: .word WINDOW_LIST
-_020280BC: .word _020AFD4C
-	arm_func_end sub_02028080
-
-	arm_func_start sub_020280C0
-sub_020280C0: ; 0x020280C0
-	stmdb sp!, {r3, r4, r5, lr}
-	mov r4, r1
-	mov r1, #1
-	mov r5, r0
-	bl sub_02027E30
-	cmp r4, #0
-	ldmeqia sp!, {r3, r4, r5, pc}
-	mov r1, #0xe0
-	mul r3, r5, r1
-	ldr r2, _02028104 ; =_022A88E4
-	ldr r1, _02028108 ; =_020AFD4C
-	ldrb r2, [r2, r3]
-	ldr ip, [r1, #8]
-	mov r3, #1
-	orr r2, ip, r3, lsl r2
-	str r2, [r1, #8]
-	ldmia sp!, {r3, r4, r5, pc}
-	.align 2, 0
-_02028104: .word _022A88E4
-_02028108: .word _020AFD4C
-	arm_func_end sub_020280C0
-
-	arm_func_start sub_0202810C
-sub_0202810C: ; 0x0202810C
-	ldr ip, _02028118 ; =sub_020280C0
-	mov r1, #1
-	bx ip
-	.align 2, 0
-_02028118: .word sub_020280C0
-	arm_func_end sub_0202810C
-
-	arm_func_start sub_0202811C
-sub_0202811C: ; 0x0202811C
-	ldr ip, _02028128 ; =sub_02027E30
-	mov r1, #1
-	bx ip
-	.align 2, 0
-_02028128: .word sub_02027E30
-	arm_func_end sub_0202811C
-
-	arm_func_start sub_0202812C
-sub_0202812C: ; 0x0202812C
-	stmdb sp!, {r4, r5, r6, lr}
-	mov r6, r0
-	mov r1, #0xe0
-	mul r5, r6, r1
-	ldr r1, _02028188 ; =_022A8992
-	ldrsb r1, [r1, r5]
-	cmp r1, #3
-	moveq r0, #1
-	ldmeqia sp!, {r4, r5, r6, pc}
-	mov r1, #0
-	bl sub_02027E30
-	mov r4, r0
-	mov r0, r6
-	bl sub_0202836C
-	ldr r0, _0202818C ; =_022A88E4
-	ldr r1, _02028190 ; =_020AFD4C
-	ldrb r0, [r0, r5]
-	ldr r3, [r1, #8]
-	mov r2, #1
-	orr r2, r3, r2, lsl r0
-	mov r0, r4
-	str r2, [r1, #8]
-	ldmia sp!, {r4, r5, r6, pc}
-	.align 2, 0
-_02028188: .word _022A8992
-_0202818C: .word _022A88E4
-_02028190: .word _020AFD4C
-	arm_func_end sub_0202812C
-
-	arm_func_start DeleteWindow
-DeleteWindow: ; 0x02028194
-	stmdb sp!, {r3, r4, r5, lr}
-	ldr r2, _02028224 ; =WINDOW_LIST
-	mov r1, #0xe0
-	mla r4, r0, r1, r2
-	bl sub_0202812C
-	ldrb r5, [r4, #8]
-	ldr lr, _02028224 ; =WINDOW_LIST
-	mov ip, #1
-	mov r3, #0
-_020281B8:
-	cmp lr, r4
-	ldrnesb r0, [lr, #0xb6]
-	cmpne r0, #0
-	beq _020281EC
-	ldrb r0, [lr, #8]
-	cmp r5, r0
-	bne _020281EC
-	ldrh r2, [lr, #0x12]
-	ldrb r1, [lr, #6]
-	ldrb r0, [lr, #7]
-	mla r0, r1, r0, r2
-	cmp ip, r0
-	movlt ip, r0
-_020281EC:
-	add r3, r3, #1
-	cmp r3, #0x14
-	add lr, lr, #0xe0
-	blt _020281B8
-	ldr r0, [r4, #0x14]
-	ldr r1, _02028228 ; =_022A7A74
-	mov r2, r5, lsl #1
-	strh ip, [r1, r2]
-	bl MemFree
-	ldrsb r0, [r4, #0x10]
-	bl sub_02027974
-	mov r0, #0
-	strb r0, [r4, #0xb6]
-	ldmia sp!, {r3, r4, r5, pc}
-	.align 2, 0
-_02028224: .word WINDOW_LIST
-_02028228: .word _022A7A74
-	arm_func_end DeleteWindow
-
-	arm_func_start sub_0202822C
-sub_0202822C: ; 0x0202822C
-	stmdb sp!, {r4, lr}
-	ldr r2, _02028258 ; =WINDOW_LIST
-	mov r1, #0xe0
-	mla r4, r0, r1, r2
-	ldr r0, [r4, #0x14]
-	bl MemFree
-	ldrsb r0, [r4, #0x10]
-	bl sub_02027974
-	mov r0, #0
-	strb r0, [r4, #0xb6]
-	ldmia sp!, {r4, pc}
-	.align 2, 0
-_02028258: .word WINDOW_LIST
-	arm_func_end sub_0202822C
-
-	arm_func_start sub_0202825C
-sub_0202825C: ; 0x0202825C
-	ldr r2, _0202826C ; =_022A7A74
-	mov r0, r0, lsl #1
-	strh r1, [r2, r0]
-	bx lr
-	.align 2, 0
-_0202826C: .word _022A7A74
-	arm_func_end sub_0202825C
-
-	arm_func_start sub_02028270
-sub_02028270: ; 0x02028270
-	ldr r1, _02028280 ; =_022A7A74
-	mov r0, r0, lsl #1
-	ldrh r0, [r1, r0]
-	bx lr
-	.align 2, 0
-_02028280: .word _022A7A74
-	arm_func_end sub_02028270
diff --git a/asm/main_02027B88.s b/asm/main_02027B88.s
new file mode 100644
index 00000000..c90487d7
--- /dev/null
+++ b/asm/main_02027B88.s
@@ -0,0 +1,521 @@
+	.include "asm/macros.inc"
+	.include "main_02027B88.inc"
+
+	.text
+
+	arm_func_start sub_02027B88
+sub_02027B88: ; 0x02027B88
+	stmdb sp!, {r4, r5, r6, r7, r8, sb, sl, lr}
+	sub sp, sp, #8
+	ldr r0, _02027E14 ; =_022A7A6C
+#ifdef JAPAN
+	ldrsb r2, [r0, #1]
+#else
+	ldrsb r2, [r0, #3]
+#endif
+	b _02027E00
+_02027B9C:
+	ldr r1, _02027E18 ; =WINDOW_LIST
+	mov r0, #0xe0
+	mla r4, r2, r0, r1
+	ldrb r0, [r4, #8]
+	cmp r0, #1
+	ldreqsb r0, [r4, #0xb6]
+	cmpeq r0, #2
+	bne _02027DFC
+	ldrsb r1, [r4, #9]
+	ldr r0, _02027E1C ; =_0209AC64
+	rsb r1, r1, #0
+	mov r1, r1, lsl #1
+	ldrsb r0, [r0, r1]
+	cmp r0, #0
+	bne _02027DF0
+	ldr r0, _02027E20 ; =_020AFD98
+	ldrb r1, [r4, #4]
+	ldrb r3, [r0, #1]
+	ldr r2, _02027E24 ; =_0209ACAC
+	sub r6, r1, #1
+	ldrb r2, [r2, r3]
+	ldrb r0, [r4, #5]
+	add r1, sp, #0
+	mov r5, r2, lsl #0xc
+	sub r3, r0, #1
+	orr r0, r5, #2
+	mov r2, r0, lsl #0x10
+	ldr r0, _02027E28 ; =_022A7AE4
+	str r6, [sp]
+	mov r2, r2, lsr #0x10
+	str r3, [sp, #4]
+	bl sub_0200B3FC
+	ldr r1, [sp]
+	orr r0, r5, #3
+	add r1, r1, #1
+	mov r0, r0, lsl #0x10
+	str r1, [sp]
+	mov r6, r0, lsr #0x10
+	ldr r8, _02027E28 ; =_022A7AE4
+	add r7, sp, #0
+	b _02027C5C
+_02027C40:
+	mov r0, r8
+	mov r1, r7
+	mov r2, r6
+	bl sub_0200B3FC
+	ldr r0, [sp]
+	add r0, r0, #1
+	str r0, [sp]
+_02027C5C:
+	ldrb r1, [r4, #4]
+	ldrb r0, [r4, #6]
+	ldr r2, [sp]
+	add r0, r1, r0
+	cmp r2, r0
+	blt _02027C40
+	orr r0, r5, #4
+	mov r2, r0, lsl #0x10
+	ldr r0, _02027E28 ; =_022A7AE4
+	add r1, sp, #0
+	mov r2, r2, lsr #0x10
+	bl sub_0200B3FC
+	ldr r0, [sp, #4]
+	orr r1, r5, #5
+	add r0, r0, #1
+	str r0, [sp, #4]
+	orr r0, r5, #1
+	orr r2, r5, #6
+	mov r0, r0, lsl #0x10
+	mov r1, r1, lsl #0x10
+	mov r2, r2, lsl #0x10
+	mov r7, r0, lsr #0x10
+	mov r8, r1, lsr #0x10
+	mov r6, r2, lsr #0x10
+	ldr sl, _02027E28 ; =_022A7AE4
+	add sb, sp, #0
+	b _02027D44
+_02027CC8:
+	ldrb r2, [r4, #4]
+	mov r0, sl
+	mov r1, sb
+	sub r3, r2, #1
+	mov r2, r8
+	str r3, [sp]
+	bl sub_0200B3FC
+	ldr r0, [sp]
+	add r0, r0, #1
+	str r0, [sp]
+	b _02027D10
+_02027CF4:
+	mov r0, sl
+	mov r1, sb
+	mov r2, r7
+	bl sub_0200B3FC
+	ldr r0, [sp]
+	add r0, r0, #1
+	str r0, [sp]
+_02027D10:
+	ldrb r1, [r4, #4]
+	ldrb r0, [r4, #6]
+	ldr r2, [sp]
+	add r0, r1, r0
+	cmp r2, r0
+	blt _02027CF4
+	mov r0, sl
+	mov r1, sb
+	mov r2, r6
+	bl sub_0200B3FC
+	ldr r0, [sp, #4]
+	add r0, r0, #1
+	str r0, [sp, #4]
+_02027D44:
+	ldrb r1, [r4, #5]
+	ldrb r0, [r4, #7]
+	ldr r2, [sp, #4]
+	add r0, r1, r0
+	cmp r2, r0
+	blt _02027CC8
+	ldrb r1, [r4, #4]
+	orr r0, r5, #7
+	mov r2, r0, lsl #0x10
+	sub r3, r1, #1
+	ldr r0, _02027E28 ; =_022A7AE4
+	add r1, sp, #0
+	str r3, [sp]
+	mov r2, r2, lsr #0x10
+	bl sub_0200B3FC
+	ldr r1, [sp]
+	orr r0, r5, #8
+	add r1, r1, #1
+	mov r0, r0, lsl #0x10
+	str r1, [sp]
+	mov r6, r0, lsr #0x10
+	ldr r8, _02027E28 ; =_022A7AE4
+	add r7, sp, #0
+	b _02027DC0
+_02027DA4:
+	mov r0, r8
+	mov r1, r7
+	mov r2, r6
+	bl sub_0200B3FC
+	ldr r0, [sp]
+	add r0, r0, #1
+	str r0, [sp]
+_02027DC0:
+	ldrb r1, [r4, #4]
+	ldrb r0, [r4, #6]
+	ldr r2, [sp]
+	add r0, r1, r0
+	cmp r2, r0
+	blt _02027DA4
+	orr r0, r5, #9
+	mov r2, r0, lsl #0x10
+	ldr r0, _02027E28 ; =_022A7AE4
+	add r1, sp, #0
+	mov r2, r2, lsr #0x10
+	bl sub_0200B3FC
+_02027DF0:
+	ldr r0, _02027E2C ; =_020AFD4C
+	mov r1, #1
+#ifdef JAPAN
+	strb r1, [r0]
+#else
+	strb r1, [r0, #3]
+#endif
+_02027DFC:
+	ldrsb r2, [r4, #0xb5]
+_02027E00:
+	mvn r0, #1
+	cmp r2, r0
+	bne _02027B9C
+	add sp, sp, #8
+	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, pc}
+	.align 2, 0
+_02027E14: .word _022A7A6C
+_02027E18: .word WINDOW_LIST
+_02027E1C: .word _0209AC64
+_02027E20: .word _020AFD98
+_02027E24: .word _0209ACAC
+_02027E28: .word _022A7AE4
+_02027E2C: .word _020AFD4C
+	arm_func_end sub_02027B88
+
+	arm_func_start sub_02027E30
+sub_02027E30: ; 0x02027E30
+	stmdb sp!, {r3, r4, r5, r6, r7, lr}
+	sub sp, sp, #8
+	ldr r3, _02028070 ; =WINDOW_LIST
+	mov r2, #0xe0
+	mla r7, r0, r2, r3
+	ldrsb r0, [r7, #9]
+	ldr r2, _02028074 ; =_0209AC64
+	cmp r1, #0
+	rsb r0, r0, #0
+	add r4, r2, r0, lsl #1
+	movne r0, #2
+	moveq r0, #3
+	strb r0, [r7, #0xb6]
+	ldrb r0, [r7, #8]
+	cmp r0, #1
+	bne _02027F34
+	cmp r1, #0
+	bne _02027F20
+	ldrsb r1, [r7, #0x10]
+	ldr r2, _02028070 ; =WINDOW_LIST
+	mov r0, #0xe0
+	mla r0, r1, r0, r2
+	add r0, r0, #0xbc
+	bl InitWindowTrailer
+	ldrsb r0, [r4]
+	cmp r0, #0
+	blt _02027F20
+	ldrb r0, [r7, #5]
+	ldr r6, _02028078 ; =_022A7AE4
+	add r5, sp, #0
+	sub r0, r0, #1
+	str r0, [sp, #4]
+	mov r4, #0
+	b _02027F08
+_02027EB8:
+	ldrb r0, [r7, #4]
+	sub r0, r0, #1
+	str r0, [sp]
+	b _02027EE4
+_02027EC8:
+	mov r0, r6
+	mov r1, r5
+	mov r2, r4
+	bl sub_0200B3FC
+	ldr r0, [sp]
+	add r0, r0, #1
+	str r0, [sp]
+_02027EE4:
+	ldrb r1, [r7, #4]
+	ldrb r0, [r7, #6]
+	ldr r2, [sp]
+	add r0, r1, r0
+	cmp r2, r0
+	ble _02027EC8
+	ldr r0, [sp, #4]
+	add r0, r0, #1
+	str r0, [sp, #4]
+_02027F08:
+	ldrb r1, [r7, #5]
+	ldrb r0, [r7, #7]
+	ldr r2, [sp, #4]
+	add r0, r1, r0
+	cmp r2, r0
+	ble _02027EB8
+_02027F20:
+	bl sub_02027B88
+	ldr r0, _0202807C ; =_020AFD4C
+	mov r1, #1
+#ifdef JAPAN
+	strb r1, [r0]
+#else
+	strb r1, [r0, #3]
+#endif
+	b _02028064
+_02027F34:
+	cmp r1, #0
+	beq _0202801C
+	ldrb r1, [r7, #4]
+	mvn r0, #3
+	mov r1, r1, lsl #3
+	strh r1, [r7, #0x34]
+	ldrb r1, [r7, #5]
+	mov r1, r1, lsl #3
+	strh r1, [r7, #0x36]
+	ldrb r1, [r7, #6]
+	mov r1, r1, lsl #3
+	strh r1, [r7, #0x38]
+	ldrb r1, [r7, #7]
+	mov r1, r1, lsl #3
+	strh r1, [r7, #0x3a]
+	ldrh r1, [r7, #0x34]
+	strh r1, [r7, #0x74]
+	ldrh r1, [r7, #0x36]
+	strh r1, [r7, #0x76]
+	ldrh r1, [r7, #0x38]
+	strh r1, [r7, #0x78]
+	ldrh r1, [r7, #0x3a]
+	strh r1, [r7, #0x7a]
+	ldrsh r1, [r7, #0x74]
+	sub r1, r1, #8
+	strh r1, [r7, #0x74]
+	ldrsh r1, [r7, #0x76]
+	sub r1, r1, #8
+	strh r1, [r7, #0x76]
+	ldrsh r1, [r7, #0x78]
+	add r1, r1, #0x10
+	strh r1, [r7, #0x78]
+	ldrsh r1, [r7, #0x7a]
+	add r1, r1, #0x10
+	strh r1, [r7, #0x7a]
+	ldrsb r1, [r7, #9]
+	cmp r1, r0
+	beq _02027FFC
+	ldrsh r0, [r7, #0x34]
+	sub r0, r0, #1
+	strh r0, [r7, #0x34]
+	ldrsh r0, [r7, #0x36]
+	sub r0, r0, #2
+	strh r0, [r7, #0x36]
+	ldrsh r0, [r7, #0x38]
+	add r0, r0, #2
+	strh r0, [r7, #0x38]
+	ldrsh r0, [r7, #0x3a]
+	add r0, r0, #6
+	strh r0, [r7, #0x3a]
+_02027FFC:
+	ldr r0, _0202807C ; =_020AFD4C
+	ldrb r0, [r0, #1]
+	cmp r0, #0
+	movne r0, #0x90
+	strneb r0, [r7, #0x63]
+	moveq r0, #0xff
+	streqb r0, [r7, #0x63]
+	b _02028064
+_0202801C:
+	ldrsb r1, [r7, #0x10]
+	ldr r2, _02028070 ; =WINDOW_LIST
+	mov r0, #0xe0
+	mla r0, r1, r0, r2
+	add r0, r0, #0xbc
+	bl InitWindowTrailer
+	mov r0, #0
+	strh r0, [r7, #0x3a]
+	strh r0, [r7, #0x38]
+	strh r0, [r7, #0x36]
+	strh r0, [r7, #0x34]
+	strh r0, [r7, #0x74]
+	ldrh r0, [r7, #0x36]
+	strh r0, [r7, #0x76]
+	ldrh r0, [r7, #0x38]
+	strh r0, [r7, #0x78]
+	ldrh r0, [r7, #0x3a]
+	strh r0, [r7, #0x7a]
+_02028064:
+	mov r0, #1
+	add sp, sp, #8
+	ldmia sp!, {r3, r4, r5, r6, r7, pc}
+	.align 2, 0
+_02028070: .word WINDOW_LIST
+_02028074: .word _0209AC64
+_02028078: .word _022A7AE4
+_0202807C: .word _020AFD4C
+	arm_func_end sub_02027E30
+
+	arm_func_start sub_02028080
+sub_02028080: ; 0x02028080
+	stmdb sp!, {r4, lr}
+	ldr r3, _020280B8 ; =WINDOW_LIST
+	mov r2, #0xe0
+	mla r4, r0, r2, r3
+	strb r1, [r4, #9]
+	ldrsb r0, [r4, #0x10]
+	bl UpdateWindow
+	ldr r0, _020280BC ; =_020AFD4C
+	ldrb r1, [r4, #8]
+	ldr r3, [r0, #8]
+	mov r2, #1
+	orr r1, r3, r2, lsl r1
+	str r1, [r0, #8]
+	ldmia sp!, {r4, pc}
+	.align 2, 0
+_020280B8: .word WINDOW_LIST
+_020280BC: .word _020AFD4C
+	arm_func_end sub_02028080
+
+	arm_func_start sub_020280C0
+sub_020280C0: ; 0x020280C0
+	stmdb sp!, {r3, r4, r5, lr}
+	mov r4, r1
+	mov r1, #1
+	mov r5, r0
+	bl sub_02027E30
+	cmp r4, #0
+	ldmeqia sp!, {r3, r4, r5, pc}
+	mov r1, #0xe0
+	mul r3, r5, r1
+	ldr r2, _02028104 ; =_022A88E4
+	ldr r1, _02028108 ; =_020AFD4C
+	ldrb r2, [r2, r3]
+	ldr ip, [r1, #8]
+	mov r3, #1
+	orr r2, ip, r3, lsl r2
+	str r2, [r1, #8]
+	ldmia sp!, {r3, r4, r5, pc}
+	.align 2, 0
+_02028104: .word _022A88E4
+_02028108: .word _020AFD4C
+	arm_func_end sub_020280C0
+
+	arm_func_start sub_0202810C
+sub_0202810C: ; 0x0202810C
+	ldr ip, _02028118 ; =sub_020280C0
+	mov r1, #1
+	bx ip
+	.align 2, 0
+_02028118: .word sub_020280C0
+	arm_func_end sub_0202810C
+
+	arm_func_start sub_0202811C
+sub_0202811C: ; 0x0202811C
+	ldr ip, _02028128 ; =sub_02027E30
+	mov r1, #1
+	bx ip
+	.align 2, 0
+_02028128: .word sub_02027E30
+	arm_func_end sub_0202811C
+
+	arm_func_start sub_0202812C
+sub_0202812C: ; 0x0202812C
+	stmdb sp!, {r4, r5, r6, lr}
+	mov r6, r0
+	mov r1, #0xe0
+	mul r5, r6, r1
+	ldr r1, _02028188 ; =_022A8992
+	ldrsb r1, [r1, r5]
+	cmp r1, #3
+	moveq r0, #1
+	ldmeqia sp!, {r4, r5, r6, pc}
+	mov r1, #0
+	bl sub_02027E30
+	mov r4, r0
+	mov r0, r6
+	bl sub_0202836C
+	ldr r0, _0202818C ; =_022A88E4
+	ldr r1, _02028190 ; =_020AFD4C
+	ldrb r0, [r0, r5]
+	ldr r3, [r1, #8]
+	mov r2, #1
+	orr r2, r3, r2, lsl r0
+	mov r0, r4
+	str r2, [r1, #8]
+	ldmia sp!, {r4, r5, r6, pc}
+	.align 2, 0
+_02028188: .word _022A8992
+_0202818C: .word _022A88E4
+_02028190: .word _020AFD4C
+	arm_func_end sub_0202812C
+
+	arm_func_start DeleteWindow
+DeleteWindow: ; 0x02028194
+	stmdb sp!, {r3, r4, r5, lr}
+	ldr r2, _02028224 ; =WINDOW_LIST
+	mov r1, #0xe0
+	mla r4, r0, r1, r2
+	bl sub_0202812C
+	ldrb r5, [r4, #8]
+	ldr lr, _02028224 ; =WINDOW_LIST
+	mov ip, #1
+	mov r3, #0
+_020281B8:
+	cmp lr, r4
+	ldrnesb r0, [lr, #0xb6]
+	cmpne r0, #0
+	beq _020281EC
+	ldrb r0, [lr, #8]
+	cmp r5, r0
+	bne _020281EC
+	ldrh r2, [lr, #0x12]
+	ldrb r1, [lr, #6]
+	ldrb r0, [lr, #7]
+	mla r0, r1, r0, r2
+	cmp ip, r0
+	movlt ip, r0
+_020281EC:
+	add r3, r3, #1
+	cmp r3, #0x14
+	add lr, lr, #0xe0
+	blt _020281B8
+	ldr r0, [r4, #0x14]
+	ldr r1, _02028228 ; =_022A7A74
+	mov r2, r5, lsl #1
+	strh ip, [r1, r2]
+	bl MemFree
+	ldrsb r0, [r4, #0x10]
+	bl sub_02027974
+	mov r0, #0
+	strb r0, [r4, #0xb6]
+	ldmia sp!, {r3, r4, r5, pc}
+	.align 2, 0
+_02028224: .word WINDOW_LIST
+_02028228: .word _022A7A74
+	arm_func_end DeleteWindow
+
+	arm_func_start sub_0202822C
+sub_0202822C: ; 0x0202822C
+	stmdb sp!, {r4, lr}
+	ldr r2, _02028258 ; =WINDOW_LIST
+	mov r1, #0xe0
+	mla r4, r0, r1, r2
+	ldr r0, [r4, #0x14]
+	bl MemFree
+	ldrsb r0, [r4, #0x10]
+	bl sub_02027974
+	mov r0, #0
+	strb r0, [r4, #0xb6]
+	ldmia sp!, {r4, pc}
+	.align 2, 0
+_02028258: .word WINDOW_LIST
+	arm_func_end sub_0202822C
diff --git a/asm/main_020282C8.s b/asm/main_020282C8.s
deleted file mode 100644
index 9325ef94..00000000
--- a/asm/main_020282C8.s
+++ /dev/null
@@ -1,53 +0,0 @@
-	.include "asm/macros.inc"
-	.include "main_020282C8.inc"
-
-	.text
-
-	arm_func_start sub_020282C8
-sub_020282C8: ; 0x020282C8
-	ldr r3, _020282F0 ; =WINDOW_LIST
-	mov r2, #0xe0
-	mla r2, r0, r2, r3
-	ldrb r0, [r2, #7]
-	mov r0, r0, lsl #3
-	str r0, [r1, #4]
-	ldrb r0, [r2, #6]
-	mov r0, r0, lsl #3
-	str r0, [r1]
-	bx lr
-	.align 2, 0
-_020282F0: .word WINDOW_LIST
-	arm_func_end sub_020282C8
-
-	arm_func_start sub_020282F4
-sub_020282F4: ; 0x020282F4
-	mov r1, #0xe0
-	mul r1, r0, r1
-	ldr r0, _02028308 ; =_022A8994
-	ldr r0, [r0, r1]
-	bx lr
-	.align 2, 0
-_02028308: .word _022A8994
-	arm_func_end sub_020282F4
-
-	arm_func_start sub_0202830C
-sub_0202830C: ; 0x0202830C
-	mov r2, #0xe0
-	mul r2, r0, r2
-	ldr r0, _02028320 ; =_022A8994
-	str r1, [r0, r2]
-	bx lr
-	.align 2, 0
-_02028320: .word _022A8994
-	arm_func_end sub_0202830C
-
-	arm_func_start sub_02028324
-sub_02028324: ; 0x02028324
-	mov r1, #0xe0
-	mul r1, r0, r1
-	ldr r0, _02028338 ; =_022A88E4
-	ldrb r0, [r0, r1]
-	bx lr
-	.align 2, 0
-_02028338: .word _022A88E4
-	arm_func_end sub_02028324
diff --git a/include/main_02027648.h b/include/main_02027648.h
index 29a23292..cb515318 100644
--- a/include/main_02027648.h
+++ b/include/main_02027648.h
@@ -1,6 +1,7 @@
 #ifndef PMDSKY_MAIN_02027648_H
 #define PMDSKY_MAIN_02027648_H
 
+u32 sub_02027624(s32 window_id);
 s32 NewWindowScreenCheck(s32 a, s32 b);
 
 #endif
diff --git a/include/main_02027AF0.h b/include/main_02027AF0.h
new file mode 100644
index 00000000..9f3e7e7a
--- /dev/null
+++ b/include/main_02027AF0.h
@@ -0,0 +1,8 @@
+#ifndef PMDSKY_MAIN_02027AF0_H
+#define PMDSKY_MAIN_02027AF0_H
+
+void UpdateWindow(s32 window_id);
+void sub_02027B1C(s32 window_id);
+void ClearWindow(s32 window_id);
+
+#endif
diff --git a/include/main_02028284.h b/include/main_02028284.h
index be8fec6d..3159dc55 100644
--- a/include/main_02028284.h
+++ b/include/main_02028284.h
@@ -2,7 +2,10 @@
 #define PMDSKY_MAIN_02028284_H
 
 #include "util.h"
+#include "window.h"
 
+void sub_0202825C(s32 index, u16 value);
+u16 sub_02028270(s32 index);
 struct unk_02028284 {
     s32 field_0x0;
     s32 field_0x4;
@@ -12,5 +15,6 @@ struct unk_02028284 {
 
 
 void GetWindowRectangle(s32 window_id, struct unk_02028284* out);
+void sub_020282C8(s32 window_id, Point* out);
 
 #endif
diff --git a/include/main_020282F4.h b/include/main_020282F4.h
new file mode 100644
index 00000000..42af5c2a
--- /dev/null
+++ b/include/main_020282F4.h
@@ -0,0 +1,8 @@
+#ifndef PMDSKY_MAIN_020282F4_H
+#define PMDSKY_MAIN_020282F4_H
+
+s32 sub_020282F4(s32 window_id);
+void sub_0202830C(s32 window_id, s32 value);
+u8 sub_02028324(s32 window_id);
+
+#endif
diff --git a/include/window.h b/include/window.h
index ac54e989..e87e2d14 100644
--- a/include/window.h
+++ b/include/window.h
@@ -116,6 +116,7 @@ struct unk_022A7A6C {
 };
 
 extern struct unk_022A7A6C _022A7A6C;
+extern u16 _022A7A74[2];
 
 s32 NewWindow(s32 a, s32 b);
 
diff --git a/main.lsf b/main.lsf
index ef4512e7..5c3af1be 100644
--- a/main.lsf
+++ b/main.lsf
@@ -148,8 +148,10 @@ Static main
 	Object asm/main_020278C4.o
 	Object src/main_02027A80.o
 	Object asm/main_02027AA0.o
+	Object src/main_02027AF0.o
+	Object asm/main_02027B88.o
 	Object src/main_02028284.o
-	Object asm/main_020282C8.o
+	Object src/main_020282F4.o
 	Object src/main_0202833C.o
 	Object asm/main_02028354.o
 	Object src/main_02029A50.o
diff --git a/src/main_02027648.c b/src/main_02027648.c
index cc7d6502..264767c1 100644
--- a/src/main_02027648.c
+++ b/src/main_02027648.c
@@ -1,6 +1,13 @@
 #include "main_02027648.h"
 #include "window.h"
 
+u32 sub_02027624(s32 window_id)
+{
+    WindowTemplate *tmpl = &WINDOW_LIST[window_id].template;
+
+    return (tmpl->width * tmpl->height) << 5;
+}
+
 s32 NewWindowScreenCheck(s32 a, s32 b)
 {
     s8 i;
diff --git a/src/main_02027AF0.c b/src/main_02027AF0.c
new file mode 100644
index 00000000..493c9479
--- /dev/null
+++ b/src/main_02027AF0.c
@@ -0,0 +1,26 @@
+#include "main_02027AF0.h"
+#include "window.h"
+
+extern void* memset(void *s, s32 c, u32 n);
+
+void UpdateWindow(s32 window_id)
+{
+    Window *w = &WINDOW_LIST[window_id];
+
+    w->active_transfer_src = w->pixel_buffer;
+    w->active_vram_dest = w->vram_base;
+    w->active_transfer_len = w->transfer_length;
+}
+
+void sub_02027B1C(s32 window_id)
+{
+    memset(WINDOW_LIST[window_id].pixel_buffer, 0,
+           WINDOW_LIST[window_id].transfer_length);
+    UpdateWindow(window_id);
+}
+
+void ClearWindow(s32 window_id)
+{
+    memset(WINDOW_LIST[window_id].pixel_buffer, 0,
+           WINDOW_LIST[window_id].transfer_length);
+}
diff --git a/src/main_02028284.c b/src/main_02028284.c
index d859c16e..ff67bdb4 100644
--- a/src/main_02028284.c
+++ b/src/main_02028284.c
@@ -1,6 +1,16 @@
 #include "main_02028284.h"
 #include "window.h"
 
+void sub_0202825C(s32 index, u16 value)
+{
+    _022A7A74[index] = value;
+}
+
+u16 sub_02028270(s32 index)
+{
+    return _022A7A74[index];
+}
+
 void GetWindowRectangle(s32 window_id, struct unk_02028284* out)
 {
     WindowTemplate *tmpl = &WINDOW_LIST[window_id].template;
@@ -13,3 +23,11 @@ void GetWindowRectangle(s32 window_id, struct unk_02028284* out)
     out->field_0x8 = left;
     out->field_0xC = left + (tmpl->width << 3);
 }
+
+void sub_020282C8(s32 window_id, Point* out)
+{
+    WindowTemplate *tmpl = &WINDOW_LIST[window_id].template;
+
+    out->y = tmpl->height << 3;
+    out->x = tmpl->width << 3;
+}
diff --git a/src/main_020282F4.c b/src/main_020282F4.c
new file mode 100644
index 00000000..3a81e3e5
--- /dev/null
+++ b/src/main_020282F4.c
@@ -0,0 +1,17 @@
+#include "main_020282F4.h"
+#include "window.h"
+
+s32 sub_020282F4(s32 window_id)
+{
+    return WINDOW_LIST[window_id].unkB8;
+}
+
+void sub_0202830C(s32 window_id, s32 value)
+{
+    WINDOW_LIST[window_id].unkB8 = value;
+}
+
+u8 sub_02028324(s32 window_id)
+{
+    return WINDOW_LIST[window_id].template.bg_id;
+}
diff --git a/src/overlay_31_02382820.c b/src/overlay_31_02382820.c
index 2e5172a7..57ae4806 100644
--- a/src/overlay_31_02382820.c
+++ b/src/overlay_31_02382820.c
@@ -7,6 +7,7 @@
 #include "weather.h"
 #include "main_02001188.h"
 #include "window.h"
+#include "main_02027AF0.h"
 
 extern struct dungeon *DUNGEON_PTR[];
 
@@ -35,7 +36,6 @@ extern void GetMonsterOrTrapName(u8*, void*, u32); // The third argument isn't a
 extern u8* StringFromId(u32);
 extern void PreprocessString(u8* dst, u32 dsize, const u8* src, u32 flags, struct PPStrValues* ptr);
 extern void DrawTextInWindow(s32, u32, u32, u8*);
-extern void UpdateWindow(s32);
 
 extern u8* AllocateTemp1024ByteBufferFromPool(void);
 extern s32 sub_020265A8(u8*); // Measures the text's width in pixels
diff --git a/src/overlay_31_02383880.c b/src/overlay_31_02383880.c
index 562e6640..aa018b57 100644
--- a/src/overlay_31_02383880.c
+++ b/src/overlay_31_02383880.c
@@ -3,6 +3,7 @@
 #include "main_0202593C.h"
 #include "overlay_31_02383478.h"
 #include "main_02001188.h"
+#include "main_020282F4.h"
 
 extern struct dungeon *DUNGEON_PTR[];
 extern struct loc_struct* OVERLAY31_UNKNOWN_POINTER__NA_238A26C;
@@ -10,7 +11,6 @@ extern struct loc_struct* OVERLAY31_UNKNOWN_POINTER__NA_238A26C;
 extern u8 PositionHasItem(struct position* pos);
 extern bool8 ov10_022BCD10(s8);
 extern void AdvanceFrame(u8);
-extern s32 sub_020282F4(s8);
 extern void CloseInventoryMenu(s8);
 extern void ov29_0234E988(u8*);
 extern void CloseTextBox2();