diff --git a/asm/include/itcm.inc b/asm/include/itcm.inc
index fe07588e..85288163 100644
--- a/asm/include/itcm.inc
+++ b/asm/include/itcm.inc
@@ -166,7 +166,6 @@
 .public sub_0201BD50
 .public sub_0201BD80
 .public sub_0202760C
-.public sub_02027AF0
 .public sub_0207A238
 .public sub_0207A244
 .public sub_0207A300
@@ -178,3 +177,4 @@
 .public TRIG_TABLE
 .public TryAddTargetToAiTargetList
 .public UpdateAiTargetPos
+.public UpdateWindow
diff --git a/asm/include/main_02054C24.inc b/asm/include/main_02054C24.inc
index 70b5c62a..59bf0608 100644
--- a/asm/include/main_02054C24.inc
+++ b/asm/include/main_02054C24.inc
@@ -494,7 +494,6 @@
 .public sub_020264F8
 .public sub_02026E78
 .public sub_02027180
-.public sub_02027AF0
 .public sub_0202836C
 .public sub_02029F88
 .public sub_02029FBC
@@ -614,6 +613,7 @@
 .public UnloadFile
 .public UnloadOverlay
 .public UpdateTrackVolumeEnvelopes
+.public UpdateWindow
 .public vsprintf
 .public WAN_TABLE
 .public ZINC_BAND_STAT_BOOST
diff --git a/asm/include/overlay_01.inc b/asm/include/overlay_01.inc
index 0deaf54c..fa6d0cef 100644
--- a/asm/include/overlay_01.inc
+++ b/asm/include/overlay_01.inc
@@ -277,7 +277,6 @@
 .public sub_02026268
 .public sub_0202676C
 .public sub_0202737C
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_020288FC
 .public sub_02029F88
@@ -372,5 +371,6 @@
 .public sub_020851AC
 .public sub_0208FE3C
 .public sub_0208FE48
+.public UpdateWindow
 .public vsprintf
 .public WAN_TABLE
diff --git a/asm/include/overlay_05.inc b/asm/include/overlay_05.inc
index 4bcc5148..3fa8aacc 100644
--- a/asm/include/overlay_05.inc
+++ b/asm/include/overlay_05.inc
@@ -74,7 +74,6 @@
 .public sub_02003BC8
 .public sub_02003BFC
 .public sub_02006C8C
-.public sub_02027AF0
 .public sub_0202836C
 .public sub_02029F88
 .public sub_02029FBC
@@ -108,3 +107,4 @@
 .public sub_02062B64
 .public sub_0208FE3C
 .public sub_0208FE48
+.public UpdateWindow
diff --git a/asm/include/overlay_07.inc b/asm/include/overlay_07.inc
index ab4dde09..5d24134b 100644
--- a/asm/include/overlay_07.inc
+++ b/asm/include/overlay_07.inc
@@ -115,7 +115,6 @@
 .public sub_02003BFC
 .public sub_0202065C
 .public sub_020264F8
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202836C
 .public sub_02029F88
@@ -149,3 +148,4 @@
 .public sub_0205BD78
 .public sub_0208FE3C
 .public sub_0208FE48
+.public UpdateWindow
diff --git a/asm/include/overlay_09.inc b/asm/include/overlay_09.inc
index c5aacf40..60ae6bc5 100644
--- a/asm/include/overlay_09.inc
+++ b/asm/include/overlay_09.inc
@@ -41,7 +41,6 @@
 .public sub_02017B7C
 .public sub_020263C8
 .public sub_020265A8
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202810C
 .public sub_0202812C
@@ -66,3 +65,4 @@
 .public sub_02033758
 .public sub_0204CA1C
 .public sub_02052060
+.public UpdateWindow
diff --git a/asm/include/overlay_10.inc b/asm/include/overlay_10.inc
index b5af6787..8f36a269 100644
--- a/asm/include/overlay_10.inc
+++ b/asm/include/overlay_10.inc
@@ -262,7 +262,6 @@
 .public sub_02025010_EU
 .public sub_020263C8
 .public sub_020265A8
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202810C
 .public sub_0202812C
@@ -341,5 +340,6 @@
 .public UnloadFile
 .public UnloadOverlay
 .public UnloadWte
+.public UpdateWindow
 .public vsprintf
 .public WAN_TABLE
diff --git a/asm/include/overlay_11.inc b/asm/include/overlay_11.inc
index 3eb25278..eadf3096 100644
--- a/asm/include/overlay_11.inc
+++ b/asm/include/overlay_11.inc
@@ -520,7 +520,6 @@
 .public sub_02026268
 .public sub_020262E0
 .public sub_020265A8
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202810C
 .public sub_0202812C
@@ -809,6 +808,7 @@
 .public UnloadFile
 .public UnloadOverlay
 .public UpdateTeamStats
+.public UpdateWindow
 .public vsprintf
 .public WAN_TABLE
 .public ZInit8
diff --git a/asm/include/overlay_13.inc b/asm/include/overlay_13.inc
index 66460500..c31ee264 100644
--- a/asm/include/overlay_13.inc
+++ b/asm/include/overlay_13.inc
@@ -60,7 +60,6 @@
 .public sub_02017C74
 .public sub_02017CB4
 .public sub_0201F2E4
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202836C
 .public sub_02028770
@@ -73,3 +72,4 @@
 .public sub_02048764
 .public sub_02048794
 .public sub_0204A198
+.public UpdateWindow
diff --git a/asm/include/overlay_14.inc b/asm/include/overlay_14.inc
index a9101ce1..3c7661eb 100644
--- a/asm/include/overlay_14.inc
+++ b/asm/include/overlay_14.inc
@@ -64,8 +64,8 @@
 .public sub_02017B70
 .public sub_02017B7C
 .public sub_02017C80
-.public sub_02027AF0
 .public sub_0202BC60
 .public sub_0202F334
 .public sub_0202F954
 .public sub_0204AE60
+.public UpdateWindow
diff --git a/asm/include/overlay_15.inc b/asm/include/overlay_15.inc
index 667b09bf..9f6eca80 100644
--- a/asm/include/overlay_15.inc
+++ b/asm/include/overlay_15.inc
@@ -35,7 +35,6 @@
 .public ShowStringIdInDialogueBox
 .public sub_02017C80
 .public sub_02026268
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202836C
 .public sub_020288DC
@@ -44,3 +43,4 @@
 .public sub_020395CC
 .public sub_020396E4
 .public sub_02039B0C
+.public UpdateWindow
diff --git a/asm/include/overlay_18.inc b/asm/include/overlay_18.inc
index 9b235c5b..f2286b80 100644
--- a/asm/include/overlay_18.inc
+++ b/asm/include/overlay_18.inc
@@ -51,7 +51,6 @@
 .public sub_02017C74
 .public sub_02017C80
 .public sub_02026268
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202BBF0
 .public sub_0202BC60
@@ -112,4 +111,5 @@
 .public sub_020573A0
 .public sub_0205B028
 .public TEAM_MEMBER_TABLE_PTR
+.public UpdateWindow
 .public vsprintf
diff --git a/asm/include/overlay_20.inc b/asm/include/overlay_20.inc
index a6b19dff..39b1ecae 100644
--- a/asm/include/overlay_20.inc
+++ b/asm/include/overlay_20.inc
@@ -77,7 +77,6 @@
 .public sub_02017C10
 .public sub_02017C50
 .public sub_02025D50
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202A03C
 .public sub_0202B490
@@ -97,3 +96,4 @@
 .public sub_02046C30
 .public sub_02046C78
 .public sub_02046D20
+.public UpdateWindow
diff --git a/asm/include/overlay_21.inc b/asm/include/overlay_21.inc
index 952cc639..ee1e4f30 100644
--- a/asm/include/overlay_21.inc
+++ b/asm/include/overlay_21.inc
@@ -72,7 +72,6 @@
 .public sub_02017C74
 .public sub_02017C80
 .public sub_02026268
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202836C
 .public sub_0202F2C4
@@ -101,3 +100,4 @@
 .public sub_020420F4
 .public sub_020572EC
 .public sub_0205B028
+.public UpdateWindow
diff --git a/asm/include/overlay_25.inc b/asm/include/overlay_25.inc
index 66ad4a5f..797adf5a 100644
--- a/asm/include/overlay_25.inc
+++ b/asm/include/overlay_25.inc
@@ -49,7 +49,7 @@
 .public sub_02017C74
 .public sub_02017C80
 .public sub_02026268
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202836C
 .public sub_0202F2C4
+.public UpdateWindow
diff --git a/asm/include/overlay_29_022E37DC.inc b/asm/include/overlay_29_022E37DC.inc
index 94a1b717..a9fae429 100644
--- a/asm/include/overlay_29_022E37DC.inc
+++ b/asm/include/overlay_29_022E37DC.inc
@@ -163,7 +163,6 @@
 .public sub_0201C000
 .public sub_0201CF90
 .public sub_0201D034
-.public sub_02027AF0
 .public sub_02048384
 .public sub_020483B8
 .public sub_020483D8
@@ -174,3 +173,4 @@
 .public TOP_SCREEN_STATUS_PTR
 .public UnloadFile
 .public UpdateMinimap
+.public UpdateWindow
diff --git a/asm/include/overlay_29_022F05B4.inc b/asm/include/overlay_29_022F05B4.inc
index fa0be144..2ac856ba 100644
--- a/asm/include/overlay_29_022F05B4.inc
+++ b/asm/include/overlay_29_022F05B4.inc
@@ -186,7 +186,6 @@
 .public sub_0201B9F8
 .public sub_0201CF90
 .public sub_02026268
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0204AEA0
 .public sub_0204AEB0
@@ -203,4 +202,5 @@
 .public UpdateAiTargetPos
 .public UpdateMinimap
 .public UpdateTrapsVisibility
+.public UpdateWindow
 .public YesNoMenu
diff --git a/asm/include/overlay_31.inc b/asm/include/overlay_31.inc
index 2f06292c..75c09927 100644
--- a/asm/include/overlay_31.inc
+++ b/asm/include/overlay_31.inc
@@ -187,7 +187,6 @@
 .public sub_02017C80
 .public sub_02025888
 .public sub_020265A8
-.public sub_02027AF0
 .public sub_02027B1C
 .public sub_0202810C
 .public sub_0202812C
@@ -244,5 +243,6 @@
 .public sub_020585B4
 .public TryPointCameraToMonster
 .public UpdateMapSurveyorFlag
+.public UpdateWindow
 .public vsprintf
 .public YesNoMenu
diff --git a/asm/itcm.s b/asm/itcm.s
index dc2d7ebd..62f97855 100644
--- a/asm/itcm.s
+++ b/asm/itcm.s
@@ -1329,7 +1329,7 @@ _01FF9274:
 	ldrb r1, [r1, #6]
 	cmp r6, r1
 	blt _01FF9170
-	bl sub_02027AF0
+	bl UpdateWindow
 _01FF9288:
 	add sp, sp, #0x14
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
@@ -1441,7 +1441,7 @@ _01FF940C:
 	ldrb r1, [r1, #6]
 	cmp r6, r1
 	blt _01FF92EC
-	bl sub_02027AF0
+	bl UpdateWindow
 _01FF9420:
 	add sp, sp, #0x20
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
diff --git a/asm/main_0200C4CC.s b/asm/main_0200C4CC.s
index 51246e0d..6644c133 100644
--- a/asm/main_0200C4CC.s
+++ b/asm/main_0200C4CC.s
@@ -32943,11 +32943,11 @@ _0202600C: .word sub_01FF929C
 
 	arm_func_start sub_02026010
 sub_02026010: ; 0x02026010
-	ldr ip, _0202601C ; =sub_02027AF0
+	ldr ip, _0202601C ; =UpdateWindow
 	ldrsb r0, [r0]
 	bx ip
 	.align 2, 0
-_0202601C: .word sub_02027AF0
+_0202601C: .word UpdateWindow
 	arm_func_end sub_02026010
 
 	arm_func_start sub_02026020
@@ -35161,8 +35161,8 @@ _02027AE8: .word _020AFD9C
 _02027AEC: .word _020AFD94
 	arm_func_end sub_02027AA0
 
-	arm_func_start sub_02027AF0
-sub_02027AF0: ; 0x02027AF0
+	arm_func_start UpdateWindow
+UpdateWindow: ; 0x02027AF0
 	ldr r2, _02027B18 ; =_022A88DC
 	mov r1, #0xe0
 	mla r1, r0, r1, r2
@@ -35175,7 +35175,7 @@ sub_02027AF0: ; 0x02027AF0
 	bx lr
 	.align 2, 0
 _02027B18: .word _022A88DC
-	arm_func_end sub_02027AF0
+	arm_func_end UpdateWindow
 
 	arm_func_start sub_02027B1C
 sub_02027B1C: ; 0x02027B1C
@@ -35190,7 +35190,7 @@ sub_02027B1C: ; 0x02027B1C
 	mov r1, #0
 	bl memset
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _02027B50: .word _022A88F0
@@ -35571,7 +35571,7 @@ sub_02028080: ; 0x02028080
 	mla r4, r0, r2, r3
 	strb r1, [r4, #9]
 	ldrsb r0, [r4, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, _020280BC ; =_020AFD4C
 	ldrb r1, [r4, #8]
 	ldr r3, [r0, #8]
@@ -38426,7 +38426,7 @@ _0202A564:
 	add r1, r5, #0x30
 	bl sub_02026E3C
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, r5
 	bl MemFree
 _0202A5B4:
@@ -38784,7 +38784,7 @@ _0202AA3C:
 	ldrb r0, [r7, #8]
 	bl sub_020287C4
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #3
 	str r0, [r8, #0x19c]
 	mov r2, #0
@@ -39225,7 +39225,7 @@ _0202B008:
 	add r0, r5, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	arm_func_end sub_0202AF78
 
@@ -39974,7 +39974,7 @@ _0202B9F4:
 	add r0, r4, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	arm_func_end sub_0202B934
 
@@ -40282,7 +40282,7 @@ _0202BDC8:
 	ldrb r0, [r6, #8]
 	bl sub_020287C4
 	ldrsb r0, [r6, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0x19c]
 	b _0202C1D8
@@ -40681,7 +40681,7 @@ _0202C36C:
 	add r0, r4, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0xc
 	add sp, sp, #0x400
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
@@ -41102,7 +41102,7 @@ _0202C8A4:
 	ldrb r0, [r4, #8]
 	bl sub_020287C4
 	ldrsb r0, [r4, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r5, #0x1ac]
 	b _0202CE40
@@ -41643,7 +41643,7 @@ _0202D04C:
 	bl sub_0202A03C
 _0202D058:
 	ldrsb r0, [r5, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x410
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	arm_func_end sub_0202CEA0
@@ -42127,7 +42127,7 @@ _0202D668:
 	ldrb r0, [r7, #8]
 	bl sub_020287C4
 	ldrsb r0, [r7, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0x1a0]
 	b _0202DA5C
@@ -42525,7 +42525,7 @@ _0202DC1C:
 	add r0, r4, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x160
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -42819,7 +42819,7 @@ _0202DFE8:
 	ldrb r0, [r7, #8]
 	bl sub_020287C4
 	ldrsb r0, [r7, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0x1a0]
 	b _0202E294
@@ -43083,7 +43083,7 @@ _0202E3B0:
 	add r0, r4, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0xc
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	arm_func_end sub_0202E29C
@@ -44008,7 +44008,7 @@ _0202F088:
 	add r0, r5, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x124
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -45061,7 +45061,7 @@ _0202FDD0:
 	add r3, r6, #0xac
 	bl DrawTextInWindow
 	ldrsb r0, [r5, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0xa0]
 	sub r0, r0, #3
@@ -45181,7 +45181,7 @@ _0202FF54:
 	mov r2, #2
 	bl sub_02026268
 	ldrsb r0, [r5, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0xa0]
 	sub r0, r0, #3
@@ -45507,7 +45507,7 @@ _02030388:
 	bl sub_02025D50
 _020303C4:
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add r0, r6, #0x600
 	ldrsh r1, [r0, #0x46]
 	strh r1, [r0, #0x48]
@@ -46375,7 +46375,7 @@ _02030ED8:
 	add r0, r4, #4
 	bl sub_0202A03C
 	ldrsb r0, [r5, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r3, r4, r5, pc}
 	arm_func_end sub_02030E94
 
@@ -46691,7 +46691,7 @@ _020312D4:
 	ldrb r0, [r7, #8]
 	bl sub_020287C4
 	ldrsb r0, [r7, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0x19c]
 	b _02031714
@@ -47085,7 +47085,7 @@ _02031868:
 	add r0, r4, #4
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0xc
 	add sp, sp, #0x400
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
@@ -54678,7 +54678,7 @@ sub_02037C78: ; 0x02037C78
 	mov r2, r1
 	bl sub_02026268
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _02037CA4: .word 0x00000122
@@ -54695,7 +54695,7 @@ sub_02037CA8: ; 0x02037CA8
 	mov r2, r1
 	bl sub_02026268
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _02037CD4: .word 0x00000123
@@ -54859,7 +54859,7 @@ _02037EF8:
 	cmp r4, #0x54
 	bne _02037D20
 	mov r0, r7
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x40
 	ldmia sp!, {r4, r5, r6, r7, r8, pc}
 	.align 2, 0
@@ -55197,7 +55197,7 @@ _02038394:
 	bl sub_02025D50
 _020383CC:
 	mov r0, sb
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x114
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -56389,7 +56389,7 @@ _020393E0:
 	mov r2, #3
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x254
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
@@ -60285,7 +60285,7 @@ sub_0203C784: ; 0x0203C784
 	str ip, [sp]
 	bl sub_020262E0
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
@@ -60902,7 +60902,7 @@ _0203CEE4:
 	add r3, sp, #0xd4
 	bl DrawTextInWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 _0203CF84:
 	add sp, sp, #0x1d4
 	ldmia sp!, {r3, r4, r5, r6, pc}
@@ -61200,7 +61200,7 @@ _0203D3D0:
 	mov r1, #4
 	bl DrawTextInWindow
 	mov r0, r6
-	bl sub_02027AF0
+	bl UpdateWindow
 _0203D3F4:
 	add sp, sp, #0xcc
 	add sp, sp, #0x400
@@ -64503,7 +64503,7 @@ _02040250:
 	mov r0, #1
 	bl sub_0204027C
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
 _02040274: .word _020AFE7C
@@ -65428,7 +65428,7 @@ _02040F18:
 	ldr r0, _02040F94 ; =_020AFE7C
 	ldr r0, [r0, #8]
 	ldrsb r0, [r0]
-	bl sub_02027AF0
+	bl UpdateWindow
 	cmp r4, #0
 	bne _02040F84
 	mov r0, #2
@@ -69407,7 +69407,7 @@ sub_02044210: ; 0x02044210
 	mov r2, #2
 	bl sub_020262E0
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
@@ -69532,7 +69532,7 @@ _020443B0:
 	bl sub_020262E0
 _020443F4:
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 _020443FC:
 	add sp, sp, #0x54
 	ldmia sp!, {r4, r5, pc}
@@ -69647,7 +69647,7 @@ sub_020444F0: ; 0x020444F0
 	bl sub_02026268
 _02044558:
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _02044564: .word _020AFECC
@@ -69732,7 +69732,7 @@ sub_02044604: ; 0x02044604
 	mov r2, #0xc
 	bl sub_020262E0
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 _02044678:
 	add sp, sp, #0x54
 	ldmia sp!, {r3, r4, pc}
@@ -73762,7 +73762,7 @@ _02047C18:
 	strb r1, [r0, #0xf7b]
 _02047C2C:
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 _02047C34:
 	add sp, sp, #8
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
diff --git a/asm/main_02054C24.s b/asm/main_02054C24.s
index f54df4cf..333a4385 100644
--- a/asm/main_02054C24.s
+++ b/asm/main_02054C24.s
@@ -25291,7 +25291,7 @@ sub_020696E8: ; 0x020696E8
 	add r3, sp, #4
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x154
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
@@ -25316,7 +25316,7 @@ sub_02069750: ; 0x02069750
 	mov r2, #3
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x100
 	ldmia sp!, {r4, pc}
 	.align 2, 0
@@ -25717,7 +25717,7 @@ _02069C50:
 	strb r2, [sp, #0x45]
 	bl sub_02060FD8
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x68
 	ldmia sp!, {r3, r4, r5, pc}
 	.align 2, 0
@@ -25756,7 +25756,7 @@ _02069CFC:
 	bl sub_02060FD8
 _02069D2C:
 	mov r0, r6
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x68
 	ldmia sp!, {r4, r5, r6, pc}
 	.align 2, 0
diff --git a/asm/overlay_01.s b/asm/overlay_01.s
index 2d96d3eb..31396f4f 100644
--- a/asm/overlay_01.s
+++ b/asm/overlay_01.s
@@ -7797,7 +7797,7 @@ ov01_0232F830: ; 0x0232F830
 	bl DrawTextInWindow
 _0232F8F0:
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	add sp, sp, #0x400
 	ldmia sp!, {r4, r5, pc}
@@ -11357,7 +11357,7 @@ _02332950:
 	ldr r0, [r0]
 	add r0, r0, #0x600
 	ldrsb r0, [r0, #0xd]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, _023329F0 ; =MAIN_MENU_WINDOW_PARAMS_7
 	ldr r3, _023329F4 ; =MAIN_MENU_ITEMS_CONFIRM
 	add r2, sp, #0xc
@@ -11729,7 +11729,7 @@ _02332E58:
 	ldr r0, [r0]
 	add r0, r0, #0x600
 	ldrsb r0, [r0, #0xd]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, _02332EEC ; =MAIN_MENU_WINDOW_PARAMS_7
 	ldr r3, _02332EF0 ; =MAIN_MENU_ITEMS_CONFIRM
 	add r2, sp, #0
@@ -14273,7 +14273,7 @@ _0233506C:
 	mov r0, sl
 	bl ov01_02335088
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x204
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -15951,7 +15951,7 @@ _02336564:
 	add r3, r3, #0x12
 	bl sub_02030978
 	mov r0, r8
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x10
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, pc}
 	.align 2, 0
@@ -16010,7 +16010,7 @@ _02336684:
 	add r3, r3, #0x12
 	bl sub_02030978
 	mov r0, r8
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, pc}
 	.align 2, 0
 _02336724: .word ov01_0233BB88
@@ -16104,7 +16104,7 @@ _02336824:
 	cmp r7, #3
 	blt _02336824
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, pc}
 	.align 2, 0
 _02336880: .word ov01_0233BB9E
@@ -16155,7 +16155,7 @@ _023368B4:
 	sub r2, r2, #8
 	bl sub_02030978
 	mov r0, r8
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x10
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, pc}
 	.align 2, 0
diff --git a/asm/overlay_05.s b/asm/overlay_05.s
index b8b9f6e4..1fb06a89 100644
--- a/asm/overlay_05.s
+++ b/asm/overlay_05.s
@@ -3551,7 +3551,7 @@ _0233FAE0:
 	mov r2, #2
 	bl DrawTextInWindow
 	mov r0, r6
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x194
 	ldmia sp!, {r3, r4, r5, r6, pc}
 	.align 2, 0
diff --git a/asm/overlay_07.s b/asm/overlay_07.s
index ecff1e04..ea4c3a2f 100644
--- a/asm/overlay_07.s
+++ b/asm/overlay_07.s
@@ -1340,7 +1340,7 @@ ov07_0233DB50: ; 0x0233DB50
 	mov r0, r5
 	bl MemFree
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, pc}
 	.align 2, 0
@@ -5846,7 +5846,7 @@ _02341888:
 	add r7, r7, #0x12
 	blt _02341824
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x108
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
diff --git a/asm/overlay_09.s b/asm/overlay_09.s
index 9e464016..05af659e 100644
--- a/asm/overlay_09.s
+++ b/asm/overlay_09.s
@@ -2182,7 +2182,7 @@ _0233E8EC:
 	add r0, r4, #8
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r1, [r4, #4]
 	mov r0, #2
 	bl ov01_02330E38
@@ -2836,7 +2836,7 @@ _0233F1DC:
 	add r0, r4, #8
 	bl sub_0202A03C
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r1, [r4, #4]
 	mov r0, #3
 	bl ov01_02330E38
@@ -3013,7 +3013,7 @@ _0233F444:
 	add r3, r6, #0x1a8
 	bl DrawTextInWindow
 	ldrsb r0, [r5, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r1, [r6, #4]
 	mov r0, #1
 	bl ov01_02330E38
diff --git a/asm/overlay_10.s b/asm/overlay_10.s
index 7d010603..51554c80 100644
--- a/asm/overlay_10.s
+++ b/asm/overlay_10.s
@@ -377,7 +377,7 @@ _022BCF0C:
 	ldrb r0, [r8, #8]
 	bl sub_020287C4
 	ldrsb r0, [r8, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, #2
 	str r0, [r4, #0x19c]
 	b _022BD200
@@ -677,7 +677,7 @@ _022BD354:
 	add r0, r4, #4
 	bl sub_0202A0B0
 	ldrsb r0, [sl, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #4
 	add sp, sp, #0x400
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
@@ -5810,7 +5810,7 @@ _022C169C:
 	cmp r5, #4
 	blt _022C15F4
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, _022C16CC ; =ov10_022DC1D0
 	ldr r0, [r0]
 	add r0, r0, #0x2d8
@@ -5899,7 +5899,7 @@ _022C1794:
 	bne _022C17C8
 	bl ClearWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	b _022C182C
 _022C17C8:
 	bl ClearWindow
@@ -5939,7 +5939,7 @@ _022C17C8:
 	add r3, sp, #0x154 + OV10_022C1748_STACK_OFFSET
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 _022C182C:
 	add sp, sp, #0x254 + OV10_022C1748_STACK_OFFSET
 	ldmia sp!, {r4, r5, pc}
@@ -5994,7 +5994,7 @@ _022C18A4:
 	mov r0, r5
 	bl ClearWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 	b _022C197C
 _022C18D8:
 	ldr r1, _022C1988 ; =ov10_022DBFB0
@@ -6038,7 +6038,7 @@ _022C1930:
 	mov r2, r1
 	bl DrawTextInWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 _022C197C:
 	add sp, sp, #0x258
 	ldmia sp!, {r3, r4, r5, pc}
diff --git a/asm/overlay_11.s b/asm/overlay_11.s
index c8e2b552..1bcabfbb 100644
--- a/asm/overlay_11.s
+++ b/asm/overlay_11.s
@@ -41613,7 +41613,7 @@ _022FF0F8:
 	bl sub_0202A434
 	strb r0, [r6, #4]
 	ldrsb r0, [r8, #0x10]
-	bl sub_02027AF0
+	bl UpdateWindow
 _022FF118:
 	bl GetMoneyCarried
 	str r0, [sp, #0x28]
@@ -43760,8 +43760,8 @@ _02300D80: .word ov11_0232260C
 _02300D84: .word ov11_02324D34
 	arm_func_end ov11_02300D5C
 
-	arm_func_start ov11_02300D88
-ov11_02300D88: ; 0x02300D88
+	arm_func_start CreateTopGroundMenu
+CreateTopGroundMenu: ; 0x02300D88
 	stmdb sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, lr}
 	sub sp, sp, #0x98
 	bl GetGameMode
@@ -43802,7 +43802,7 @@ _02300DFC:
 	beq _02300E2C
 	b _02300E44
 _02300E1C:
-	bl ov11_02304AC4
+	bl IsBagNotEmpty
 	b _02300E48
 _02300E24:
 	mov r0, r7
@@ -43862,10 +43862,10 @@ _02300EE4: .word ov11_0232262C
 _02300EE8: .word ov11_023225FC
 _02300EEC: .word 0x00400213
 _02300EF0: .word ov11_0232261C
-	arm_func_end ov11_02300D88
+	arm_func_end CreateTopGroundMenu
 
-	arm_func_start ov11_02300EF4
-ov11_02300EF4: ; 0x02300EF4
+	arm_func_start CloseTopGroundMenu
+CloseTopGroundMenu: ; 0x02300EF4
 	stmdb sp!, {r3, lr}
 	ldr r0, _02300F4C ; =ov11_02324D34
 	ldr r0, [r0]
@@ -43890,10 +43890,10 @@ ov11_02300EF4: ; 0x02300EF4
 	ldmia sp!, {r3, pc}
 	.align 2, 0
 _02300F4C: .word ov11_02324D34
-	arm_func_end ov11_02300EF4
+	arm_func_end CloseTopGroundMenu
 
-	arm_func_start ov11_02300F50
-ov11_02300F50: ; 0x02300F50
+	arm_func_start UpdateTopGroundMenu
+UpdateTopGroundMenu: ; 0x02300F50
 	stmdb sp!, {r3, lr}
 	ldr r0, _02301138 ; =ov11_02324D34
 	ldr r2, [r0]
@@ -44031,7 +44031,7 @@ _02301130:
 	ldmia sp!, {r3, pc}
 	.align 2, 0
 _02301138: .word ov11_02324D34
-	arm_func_end ov11_02300F50
+	arm_func_end UpdateTopGroundMenu
 
 	arm_func_start ov11_0230113C
 ov11_0230113C: ; 0x0230113C
@@ -47697,7 +47697,7 @@ _02304334:
 	mov r2, #3
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #4
 	add sp, sp, #0x400
 	ldmia sp!, {r3, r4, pc}
@@ -48294,8 +48294,8 @@ _02304ABC: .word ov11_02324D78
 _02304AC0: .word ov11_02322AC4
 	arm_func_end ov11_0230492C
 
-	arm_func_start ov11_02304AC4
-ov11_02304AC4: ; 0x02304AC4
+	arm_func_start IsBagNotEmpty
+IsBagNotEmpty: ; 0x02304AC4
 	stmdb sp!, {r3, lr}
 	bl GetNbItemsInBag
 	cmp r0, #0
@@ -48303,7 +48303,7 @@ ov11_02304AC4: ; 0x02304AC4
 	movle r0, #0
 	and r0, r0, #0xff
 	ldmia sp!, {r3, pc}
-	arm_func_end ov11_02304AC4
+	arm_func_end IsBagNotEmpty
 
 	arm_func_start ov11_02304AE0
 ov11_02304AE0: ; 0x02304AE0
@@ -51286,7 +51286,7 @@ _023073FC:
 	str r2, [r0]
 	b _02308CF0
 _02307464:
-	bl ov11_02304AC4
+	bl IsBagNotEmpty
 	cmp r0, #0
 	bne _02307494
 	ldr r0, _023082B4 ; =ov11_02324D8C
@@ -51402,7 +51402,7 @@ _023075F0:
 	mov r2, r1
 	bl DrawTextInWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 _0230760C:
 	ldr r0, _023082B4 ; =ov11_02324D8C
 	ldr r0, [r0]
@@ -52770,7 +52770,7 @@ _023089C0:
 	ldr r0, [r0]
 	ldrsb r0, [r0, #8]
 	bl ShowDialogueBox
-	bl ov11_02304AC4
+	bl IsBagNotEmpty
 	cmp r0, #0
 	ldreq r0, _023082B4 ; =ov11_02324D8C
 	moveq r1, #0xc
@@ -55685,7 +55685,7 @@ _0230B184:
 	str r4, [sp]
 	bl sub_020262E0
 	mov r0, r7
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x15c
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -57549,7 +57549,7 @@ ov11_0230CA7C: ; 0x0230CA7C
 	mov r2, #2
 	bl sub_02026268
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _0230CAA0: .word 0x000003A9
@@ -57620,7 +57620,7 @@ ov11_0230CB28: ; 0x0230CB28
 	mov r1, #6
 	bl sub_020262E0
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
@@ -69663,7 +69663,7 @@ _023169FC:
 	bl sub_02026268
 _02316A18:
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	mov r0, r6
 	bl MemFree
 	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
@@ -80060,9 +80060,9 @@ ov11_023225FC:
 	.global ov11_0232260C
 ov11_0232260C:
 	.byte 0x0D, 0x00, 0x00, 0x00
-	.word ov11_02300D88
-	.word ov11_02300EF4
-	.word ov11_02300F50
+	.word CreateTopGroundMenu
+	.word CloseTopGroundMenu
+	.word UpdateTopGroundMenu
 	.global ov11_0232261C
 ov11_0232261C:
 	.byte 0x00, 0x00, 0x00, 0x00, 0x0D, 0x04, 0x11, 0x02, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
diff --git a/asm/overlay_13.s b/asm/overlay_13.s
index e6efcca4..f6d246d2 100644
--- a/asm/overlay_13.s
+++ b/asm/overlay_13.s
@@ -2120,7 +2120,7 @@ ov13_0238BE6C: ; 0x0238BE6C
 	mov r2, #0x24
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	add sp, sp, #0x400
 	ldmia sp!, {r4, r5, pc}
diff --git a/asm/overlay_14.s b/asm/overlay_14.s
index 72de1f81..56017336 100644
--- a/asm/overlay_14.s
+++ b/asm/overlay_14.s
@@ -903,7 +903,7 @@ _0238AD84:
 	bl DrawTextInWindow
 _0238ADE8:
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 _0238ADF0:
 	add sp, sp, #0x18
 	ldmia sp!, {r4, pc}
@@ -3454,7 +3454,7 @@ _0238D160:
 	ldr r0, _0238D2FC ; =SENTRY_DUTY_PTR
 	ldr r0, [r0]
 	ldrsb r0, [r0, #4]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, _0238D2FC ; =SENTRY_DUTY_PTR
 	ldr r0, [r0]
 	ldrsb r0, [r0, #5]
@@ -3462,7 +3462,7 @@ _0238D160:
 	ldr r0, _0238D2FC ; =SENTRY_DUTY_PTR
 	ldr r0, [r0]
 	ldrsb r0, [r0, #5]
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r1, _0238D2FC ; =SENTRY_DUTY_PTR
 	ldr r3, [r1]
 	add r0, r3, #0x3000
diff --git a/asm/overlay_15.s b/asm/overlay_15.s
index 29988c57..3f5082ef 100644
--- a/asm/overlay_15.s
+++ b/asm/overlay_15.s
@@ -946,7 +946,7 @@ ov15_0238ADFC: ; 0x0238ADFC
 	add r3, sp, #4
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	add sp, sp, #0x400
 	ldmia sp!, {r3, r4, pc}
diff --git a/asm/overlay_18.s b/asm/overlay_18.s
index ae6a4001..853f6aea 100644
--- a/asm/overlay_18.s
+++ b/asm/overlay_18.s
@@ -1045,7 +1045,7 @@ ov18_0238AF3C: ; 0x0238AF3C
 	mov r2, #0x10
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	add sp, sp, #0x400
 	ldmia sp!, {r3, r4, pc}
diff --git a/asm/overlay_20.s b/asm/overlay_20.s
index faa54c50..f4570035 100644
--- a/asm/overlay_20.s
+++ b/asm/overlay_20.s
@@ -1875,7 +1875,7 @@ _0238BA14:
 	cmp sb, r0
 	blt _0238B94C
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x154
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -1916,7 +1916,7 @@ ov20_0238BA40: ; 0x0238BA40
 	mov r2, #2
 	bl DrawTextInWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x154
 	ldmia sp!, {r4, r5, pc}
 	.align 2, 0
@@ -1968,7 +1968,7 @@ ov20_0238BAB4: ; 0x0238BAB4
 	add r3, sp, #0x54
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x154
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
@@ -3435,7 +3435,7 @@ ov20_0238CE9C: ; 0x0238CE9C
 	add r3, sp, #0x54
 	bl DrawTextInWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x154
 	ldmia sp!, {r4, r5, pc}
 	.align 2, 0
@@ -3468,7 +3468,7 @@ ov20_0238CF20: ; 0x0238CF20
 	add r3, sp, #0x54
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x154
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
diff --git a/asm/overlay_21.s b/asm/overlay_21.s
index 4fec8041..26c0a1ad 100644
--- a/asm/overlay_21.s
+++ b/asm/overlay_21.s
@@ -2840,7 +2840,7 @@ ov21_0238C9A4: ; 0x0238C9A4
 	add r3, sp, #4
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	add sp, sp, #0x400
 	ldmia sp!, {r3, r4, pc}
diff --git a/asm/overlay_25.s b/asm/overlay_25.s
index f4490c4f..77a6f7b3 100644
--- a/asm/overlay_25.s
+++ b/asm/overlay_25.s
@@ -1347,7 +1347,7 @@ ov25_0238B414: ; 0x0238B414
 	add r3, sp, #4
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	add sp, sp, #0x400
 	ldmia sp!, {r3, r4, pc}
diff --git a/asm/overlay_29_022E37DC.s b/asm/overlay_29_022E37DC.s
index 432f3839..19e50db8 100644
--- a/asm/overlay_29_022E37DC.s
+++ b/asm/overlay_29_022E37DC.s
@@ -6871,7 +6871,7 @@ ov29_022E8E60: ; 0x022E8E60
 	mov r2, r1
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 #ifdef EUROPE
@@ -6968,7 +6968,7 @@ ov29_022E8F78: ; 0x022E8F78
 	mov r2, r1
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _022E8FC4: .word ov29_02353558
diff --git a/asm/overlay_29_022F05B4.s b/asm/overlay_29_022F05B4.s
index e76b8e70..03107207 100644
--- a/asm/overlay_29_022F05B4.s
+++ b/asm/overlay_29_022F05B4.s
@@ -458,7 +458,7 @@ ov29_022F0B10: ; 0x022F0B10
 	add r3, sp, #0x54
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0xd4
 	ldmia sp!, {r3, r4, pc}
 	.align 2, 0
diff --git a/asm/overlay_31.s b/asm/overlay_31.s
index 1bf4590d..8746bd5b 100644
--- a/asm/overlay_31.s
+++ b/asm/overlay_31.s
@@ -172,7 +172,7 @@ _02382A88:
 	blt _023829D8
 _02382A90:
 	mov r0, sl
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x254
 	ldmia sp!, {r4, r5, r6, r7, r8, sb, sl, fp, pc}
 	.align 2, 0
@@ -220,7 +220,7 @@ DungeonMenuSwitch: ; 0x02382AC0
 	mov r0, r4
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x54
 	ldmia sp!, {r3, r4, r5, r6, pc}
 	.align 2, 0
@@ -549,7 +549,7 @@ ov31_02382F68: ; 0x02382F68
 	str r3, [ip]
 	bl DrawTextInWindow
 	mov r0, r4
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldmia sp!, {r4, pc}
 	.align 2, 0
 _02382FB4: .word ov31_0238A2A0
@@ -1693,7 +1693,7 @@ _02383F34:
 	add r3, sp, #0x4c
 	bl DrawTextInWindow
 	mov r0, r8
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, [sp, #0x28]
 	mov r1, #0
 	mov r2, #1
@@ -1749,7 +1749,7 @@ _02383FF0:
 	add r3, sp, #0x4c
 	bl DrawTextInWindow
 	mov r0, r8
-	bl sub_02027AF0
+	bl UpdateWindow
 	ldr r0, [r4]
 	mov r1, #0
 	add r2, r0, #0x1000
@@ -8326,7 +8326,7 @@ ov31_02389A04: ; 0x02389A04
 	mov r2, #2
 	bl DrawTextInWindow
 	mov r0, r5
-	bl sub_02027AF0
+	bl UpdateWindow
 	add sp, sp, #0x94
 	ldmia sp!, {r4, r5, pc}
 	.align 2, 0