diff --git a/engine/games/unown_puzzle.asm b/engine/games/unown_puzzle.asm
index f6bbd18d2..4dfebb9b0 100644
--- a/engine/games/unown_puzzle.asm
+++ b/engine/games/unown_puzzle.asm
@@ -14,8 +14,8 @@ _UnownPuzzle:
 	xor a
 	ldh [hBGMapMode], a
 	call DisableLCD
-	ld hl, wc608 ; includes wPuzzlePieces
-	ld bc, wc7e8 - wc608
+	ld hl, wUnownPuzzle ; includes wPuzzlePieces
+	ld bc, wUnownPuzzleEnd - wUnownPuzzle
 	xor a
 	call ByteFill
 	ld hl, UnownPuzzleCursorGFX
diff --git a/engine/overworld/overworld.asm b/engine/overworld/overworld.asm
index ab9770ee5..e47645f2c 100644
--- a/engine/overworld/overworld.asm
+++ b/engine/overworld/overworld.asm
@@ -594,7 +594,7 @@ endr
 	jr c, .done
 
 	ld a, h
-	add $8
+	add HIGH(vTiles1 - vTiles0)
 	ld h, a
 	call .CopyToVram
 
diff --git a/engine/overworld/warp_connection.asm b/engine/overworld/warp_connection.asm
index b39d424a7..2630ad913 100644
--- a/engine/overworld/warp_connection.asm
+++ b/engine/overworld/warp_connection.asm
@@ -1,6 +1,6 @@
 
 HandleNewMap:
-	call Clearwc7e8
+	call ClearUnusedC7E8
 	call ResetMapBufferEventFlags
 	call ResetFlashIfOutOfCave
 	call GetCurrentMapSceneID
diff --git a/engine/rtc/timeset.asm b/engine/rtc/timeset.asm
index 366dd2460..3275d313a 100644
--- a/engine/rtc/timeset.asm
+++ b/engine/rtc/timeset.asm
@@ -44,7 +44,7 @@ InitClock:
 	ld hl, Text_WokeUpOak
 	call PrintText
 	ld hl, wTimeSetBuffer
-	ld bc, 50
+	ld bc, wTimeSetBufferEnd - wTimeSetBuffer
 	xor a
 	call ByteFill
 	ld a, 10 ; default hour = 10 AM
diff --git a/home/map.asm b/home/map.asm
index 5cd658727..9af673f3d 100644
--- a/home/map.asm
+++ b/home/map.asm
@@ -1,8 +1,8 @@
 ; Functions dealing with rendering and interacting with maps.
 
-Clearwc7e8::
-	ld hl, wc7e8
-	ld bc, wc7e8_End - wc7e8
+ClearUnusedC7E8::
+	ld hl, wUnusedC7E8
+	ld bc, wUnusedC7E8End - wUnusedC7E8
 	ld a, 0
 	call ByteFill
 	ret
diff --git a/pokecrystal.link b/pokecrystal.link
index 4c5e69c2c..ccef50b37 100644
--- a/pokecrystal.link
+++ b/pokecrystal.link
@@ -319,7 +319,7 @@ WRAM0
 	align 8
 	"Sprites"
 	"Tilemap"
-	"Battle"
+	"Miscellaneous"
 	"Overworld Map"
 	"Video"
 WRAMX 1
diff --git a/wram.asm b/wram.asm
index 9eccd7bad..7b1d26cb4 100644
--- a/wram.asm
+++ b/wram.asm
@@ -354,54 +354,26 @@ wTileMap:: ; c4a0
 wTileMapEnd::
 
 
-SECTION "Battle", WRAM0
+SECTION "Miscellaneous", WRAM0
 
+; This union spans 480 bytes from c608 to c7e8.
 UNION ; c608
-; unidentified uses
-wc608:: ds 53
-wc63d:: ds 5
-wc642:: ds 5
-wc647:: ds 33
-wc668:: ds 32
-wc688:: ds 2
-wc68a:: ds 350
-
-NEXTU ; c608
 ; surrounding tiles
+; This buffer determines the size for the rest of the union;
+; it uses exactly 480 bytes.
 wSurroundingTiles:: ds SURROUNDING_WIDTH * SURROUNDING_HEIGHT
 
 NEXTU ; c608
 ; box save buffer
+; SaveBoxAddress uses this buffer in three steps because it
+; needs more space than the buffer can hold.
 wBoxPartialData:: ds 480
 wBoxPartialDataEnd::
 
-NEXTU ; c608
-; odd egg
-wOddEgg:: party_struct wOddEgg
-wOddEggName:: ds MON_NAME_LENGTH
-wOddEggOTName:: ds NAME_LENGTH
-
 NEXTU ; c608
 ; battle tower temp struct
 wBT_OTTemp:: battle_tower_struct wBT_OTTemp
 
-NEXTU ; c608
-; hall of fame temp struct
-wHallOfFameTemp:: hall_of_fame wHallOfFameTemp
-
-NEXTU ; c608
-; timeset temp storage
-wTimeSetBuffer::
-	ds 20
-wInitHourBuffer:: db ; c61c
-	ds 9
-wInitMinuteBuffer:: db ; c626
-
-NEXTU ; c608
-; link engine data
-wLink_c608:: ds 10
-wc612:: ds 10
-
 NEXTU ; c608
 ; battle data
 wBattle::
@@ -578,9 +550,6 @@ wPlayerAtkLevel:: db ; c6cc
 wPlayerDefLevel:: db ; c6cd
 wPlayerSpdLevel:: db ; c6ce
 wPlayerSAtkLevel:: db ; c6cf
-
-UNION ; c6d0
-; finish battle RAM
 wPlayerSDefLevel:: db ; c6d0
 wPlayerAccLevel:: db ; c6d1
 wPlayerEvaLevel:: db ; c6d2
@@ -739,107 +708,60 @@ wSomeoneIsRampaging:: db ; c73b
 wPlayerJustGotFrozen:: db ; c73c
 wEnemyJustGotFrozen:: db ; c73d
 wBattleEnd::
-; Battle RAM
-; c741
 
-NEXTU ; c6d0
-; trade
-wTrademons::
-wPlayerTrademon:: trademon wPlayerTrademon
-wOTTrademon::     trademon wOTTrademon
-wTrademonsEnd::
-wTradeAnimAddress:: dw
-wLinkPlayer1Name:: ds NAME_LENGTH
-wLinkPlayer2Name:: ds NAME_LENGTH
-wLinkTradeSendmonSpecies:: db
-wLinkTradeGetmonSpecies::  db
-
-NEXTU ; c6d0
-; naming screen
-wNamingScreenDestinationPointer:: dw ; c6d0
-wNamingScreenCurNameLength:: db ; c6d2
-wNamingScreenMaxNameLength:: db ; c6d3
-wNamingScreenType:: db ; c6d4
-wNamingScreenCursorObjectPointer:: dw ; c6d5
-wNamingScreenLastCharacter:: db ; c6d7
-wNamingScreenStringEntryCoord:: dw ; c6d8
-
-NEXTU ; c6d0
-; pokegear
-wPokegearPhoneLoadNameBuffer:: db ; c6d0
-wPokegearPhoneCursorPosition:: db ; c6d1
-wPokegearPhoneScrollPosition:: db ; c6d2
-wPokegearPhoneSelectedPerson:: db ; c6d3
-wPokegearPhoneSubmenuCursor:: db ; c6d4
-wPokegearMapCursorObjectPointer:: dw ; c6d5
-wPokegearMapCursorLandmark:: db ; c6d7
-wPokegearMapPlayerIconLandmark:: db ; c6d8
-wPokegearRadioChannelBank:: db ; c6d9
-wPokegearRadioChannelAddr:: dw ; c6da
-wPokegearRadioMusicPlaying:: db ; c6dc
-
-NEXTU ; c6d0
-; slot machine
-wSlots::
-wReel1:: slot_reel wReel1
-wReel2:: slot_reel wReel2
-wReel3:: slot_reel wReel3
-; c700
-wReel1Stopped:: ds 3
-wReel2Stopped:: ds 3
-wReel3Stopped:: ds 3
-wSlotBias:: db
-wSlotBet:: db
-wFirstTwoReelsMatching:: db
-wFirstTwoReelsMatchingSevens:: db
-wSlotMatched:: db
-wCurReelStopped:: ds 3
-wPayout:: dw
-wCurReelXCoord:: db
-wCurReelYCoord:: db
-	ds 2
-wSlotBuildingMatch:: db
-wSlotsDataEnd::
-	ds 28
-wSlotsEnd::
-
-NEXTU ; c6d0
-; card flip
-wCardFlip::
-wDeck:: ds 24
-wDeckEnd::
-; c6e8
-wCardFlipNumCardsPlayed:: db
-wCardFlipFaceUpCard:: db
-wDiscardPile:: ds 24
-wDiscardPileEnd::
-wCardFlipEnd::
-
-NEXTU ; c6d0
-; dummy game
-wDummyGame::
-wDummyGameCards:: ds 9 * 5
-wDummyGameCardsEnd::
-wDummyGameLastCardPicked:: db ; c6fd
-wDummyGameCard1:: db ; c6fe
-wDummyGameCard2:: db ; c6ff
-wDummyGameCard1Location:: db ; c700
-wDummyGameCard2Location:: db ; c701
-wDummyGameNumberTriesRemaining:: db ; c702
-wDummyGameLastMatches:: ds 5 ; c703
-wDummyGameCounter:: db ; c708
-wDummyGameNumCardsMatched:: db ; c709
-wDummyGameEnd::
-
-NEXTU ; c6d0
+NEXTU ; c608
 ; unown puzzle
 wUnownPuzzle::
+	ds 200
 wPuzzlePieces:: ds 6 * 6
+	ds 244
 wUnownPuzzleEnd::
 
-NEXTU ; c6d0
+NEXTU ; c608
+
+; This union spans 200 bytes from c608 to c6d0.
+UNION ; c608
+; timeset temp storage
+wTimeSetBuffer::
+	ds 20
+wInitHourBuffer:: db ; c61c
+	ds 9
+wInitMinuteBuffer:: db ; c626
+	ds 19
+wTimeSetBufferEnd::
+
+NEXTU ; c608
+; hall of fame temp struct
+wHallOfFameTemp:: hall_of_fame wHallOfFameTemp
+
+NEXTU ; c608
+; link engine data
+wLink_c608:: ds 10
+wc612:: ds 10
+
+NEXTU ; c608
+; odd egg
+wOddEgg:: party_struct wOddEgg
+wOddEggName:: ds MON_NAME_LENGTH
+wOddEggOTName:: ds NAME_LENGTH
+
+NEXTU ; c608
+; mobile data
+wc608:: ds 53
+wc63d:: ds 5
+wc642:: ds 5
+wc647:: ds 33
+wc668:: ds 32
+wc688:: ds 2
+wc68a:: ds 4
+	ds 66
+
+ENDU ; c6d0
+
+; This union spans 280 bytes from c6d0 to c7e8.
+UNION ; c6d0
 ; pokedex
-wPokedexDataStart::
+wPokedexDataStart:: ; c6d0
 wPokedexOrder:: ds $100 ; >= NUM_POKEMON
 wPokedexOrderEnd::
 wDexListingScrollOffset:: db ; offset of the first displayed entry from the start
@@ -871,6 +793,95 @@ wPokedexDataEnd:: ds 1
 endc
 	ds 2
 
+NEXTU ; c6d0
+; pokegear
+wPokegearPhoneLoadNameBuffer:: db ; c6d0
+wPokegearPhoneCursorPosition:: db ; c6d1
+wPokegearPhoneScrollPosition:: db ; c6d2
+wPokegearPhoneSelectedPerson:: db ; c6d3
+wPokegearPhoneSubmenuCursor:: db ; c6d4
+wPokegearMapCursorObjectPointer:: dw ; c6d5
+wPokegearMapCursorLandmark:: db ; c6d7
+wPokegearMapPlayerIconLandmark:: db ; c6d8
+wPokegearRadioChannelBank:: db ; c6d9
+wPokegearRadioChannelAddr:: dw ; c6da
+wPokegearRadioMusicPlaying:: db ; c6dc
+
+NEXTU ; c6d0
+; trade
+wTrademons:: ; c6d0
+wPlayerTrademon:: trademon wPlayerTrademon
+wOTTrademon::     trademon wOTTrademon
+wTrademonsEnd::
+wTradeAnimAddress:: dw
+wLinkPlayer1Name:: ds NAME_LENGTH
+wLinkPlayer2Name:: ds NAME_LENGTH
+wLinkTradeSendmonSpecies:: db
+wLinkTradeGetmonSpecies::  db
+
+NEXTU ; c6d0
+; naming screen
+wNamingScreenDestinationPointer:: dw ; c6d0
+wNamingScreenCurNameLength:: db ; c6d2
+wNamingScreenMaxNameLength:: db ; c6d3
+wNamingScreenType:: db ; c6d4
+wNamingScreenCursorObjectPointer:: dw ; c6d5
+wNamingScreenLastCharacter:: db ; c6d7
+wNamingScreenStringEntryCoord:: dw ; c6d8
+
+NEXTU ; c6d0
+; slot machine
+wSlots:: ; c6d0
+wReel1:: slot_reel wReel1
+wReel2:: slot_reel wReel2
+wReel3:: slot_reel wReel3
+; c700
+wReel1Stopped:: ds 3
+wReel2Stopped:: ds 3
+wReel3Stopped:: ds 3
+wSlotBias:: db
+wSlotBet:: db
+wFirstTwoReelsMatching:: db
+wFirstTwoReelsMatchingSevens:: db
+wSlotMatched:: db
+wCurReelStopped:: ds 3
+wPayout:: dw
+wCurReelXCoord:: db
+wCurReelYCoord:: db
+	ds 2
+wSlotBuildingMatch:: db
+wSlotsDataEnd::
+	ds 28
+wSlotsEnd::
+
+NEXTU ; c6d0
+; card flip
+wCardFlip:: ; c6d0
+wDeck:: ds 24
+wDeckEnd::
+; c6e8
+wCardFlipNumCardsPlayed:: db
+wCardFlipFaceUpCard:: db
+wDiscardPile:: ds 24
+wDiscardPileEnd::
+wCardFlipEnd::
+
+NEXTU ; c6d0
+; dummy game
+wDummyGame:: ; c6d0
+wDummyGameCards:: ds 9 * 5
+wDummyGameCardsEnd::
+wDummyGameLastCardPicked:: db ; c6fd
+wDummyGameCard1:: db ; c6fe
+wDummyGameCard2:: db ; c6ff
+wDummyGameCard1Location:: db ; c700
+wDummyGameCard2Location:: db ; c701
+wDummyGameNumberTriesRemaining:: db ; c702
+wDummyGameLastMatches:: ds 5 ; c703
+wDummyGameCounter:: db ; c708
+wDummyGameNumCardsMatched:: db ; c709
+wDummyGameEnd::
+
 NEXTU ; c6d0
 ; mobile data
 wc6d0:: ds 56
@@ -896,10 +907,11 @@ wc7d2:: ds 1
 wc7d3:: ds 1
 wc7d4:: ds 1
 ENDU ; c7e8
+
 ENDU ; c7e8
 
-wc7e8:: ds 24
-wc7e8_End::
+wUnusedC7E8:: ds 24
+wUnusedC7E8End::
 
 
 SECTION "Overworld Map", WRAM0