diff --git a/parts/gametoolfunc.lua b/parts/gametoolfunc.lua
index aedfcfc8..6281c307 100644
--- a/parts/gametoolfunc.lua
+++ b/parts/gametoolfunc.lua
@@ -528,7 +528,9 @@ do--function resetGameData(args)
 				MES.new('error',"Wrong task type")
 			end
 		end
-		BG.set(GAME.modeEnv.bg)
+
+		local bg=GAME.modeEnv.bg
+		BG.set(type(bg)=='string'and bg or type(bg)=='table'and bg[math.random(#bg)])
 		local bgm=GAME.modeEnv.bgm
 		BGM.play(type(bgm)=='string'and bgm or type(bgm)=='table'and bgm[math.random(#bgm)])
 
diff --git a/parts/globalTables.lua b/parts/globalTables.lua
index 23eb1e7e..370f600d 100644
--- a/parts/globalTables.lua
+++ b/parts/globalTables.lua
@@ -237,10 +237,6 @@ ROOMENV={
 	b2bKill=false,
 	easyFresh=true,
 	deepDrop=false,
-
-	--Else
-	bg='blockfall',
-	bgm='battle',
 }
 SETTING={--Settings
 	--Tuning
diff --git a/parts/language/lang_en.lua b/parts/language/lang_en.lua
index d3c709d1..b03f2d45 100644
--- a/parts/language/lang_en.lua
+++ b/parts/language/lang_en.lua
@@ -294,9 +294,6 @@ return{
 			holdCount="Hold",
 			infHold="Infinite Hold",
 			phyHold="In-place Hold",
-
-			bg="Background",
-			bgm="Music",
 		},
 		net_game={
 			ready="Ready",
diff --git a/parts/language/lang_es.lua b/parts/language/lang_es.lua
index 47ebdd51..7aef960b 100644
--- a/parts/language/lang_es.lua
+++ b/parts/language/lang_es.lua
@@ -260,9 +260,6 @@ return{
 			holdCount="Reserva",
 			infHold="Reserva Inft.",
 			phyHold="Reserva Limit.",
-
-			bg="Fundo",
-			bgm="Música",
 		},
 		net_game={
 			ready="Estoy Listo",
diff --git a/parts/language/lang_fr.lua b/parts/language/lang_fr.lua
index 46300fde..389c498d 100644
--- a/parts/language/lang_fr.lua
+++ b/parts/language/lang_fr.lua
@@ -256,9 +256,6 @@ return{
 			holdCount="Réserve",
 			infHold="Réserver une fois",
 			-- phyHold="Physical Hold",
-
-			bg="Arrière-plan",
-			bgm="Musique",
 		},
 		net_game={
 			-- ready="Ready",
diff --git a/parts/language/lang_pt.lua b/parts/language/lang_pt.lua
index 001276d0..6fef6a75 100644
--- a/parts/language/lang_pt.lua
+++ b/parts/language/lang_pt.lua
@@ -284,9 +284,6 @@ return{
 			holdCount="Segurar",
 			infHold="Segurar Infinito",
 			-- phyHold="Physical Hold",
-
-			bg="Fundo",
-			bgm="Música",
 		},
 		net_game={
 			-- ready="Ready",
diff --git a/parts/language/lang_zh.lua b/parts/language/lang_zh.lua
index 6dbde262..8fd74912 100644
--- a/parts/language/lang_zh.lua
+++ b/parts/language/lang_zh.lua
@@ -294,9 +294,6 @@ return{
 			holdCount="Hold",
 			infHold="无限Hold",
 			phyHold="物理Hold",
-
-			bg="背景",
-			bgm="音乐",
 		},
 		net_game={
 			ready="准备",
diff --git a/parts/modes/netBattle.lua b/parts/modes/netBattle.lua
index 93ff5f63..b7506877 100644
--- a/parts/modes/netBattle.lua
+++ b/parts/modes/netBattle.lua
@@ -8,9 +8,11 @@ local function marginTask(P)
 end
 return{
 	color=COLOR.white,
-	env={},
+	env={
+		bg={'bg1','bg2','blackhole','blockfall','blockrain','blockspace','cubes','fan','flink','glow','lightning','matrix','rainbow','rainbow2','rgb','tunnel','welcome'},
+		bgm={'battle','beat5th','cruelty','distortion','echo','far','final','here','hope','memory','moonbeam','push','rectification','secret7th remix','secret7th','secret8th remix','secret8th','shift','shining terminal','storm','super7th','there','truth','vapor','warped','waterfall'},
+	},
 	load=function()
-		TABLE.clear(GAME.modeEnv)
 		for k,v in next,NET.roomState.roomData do
 			GAME.modeEnv[k]=v
 		end
diff --git a/parts/scenes/net_newRoom.lua b/parts/scenes/net_newRoom.lua
index 0ce36ef2..cccd1b50 100644
--- a/parts/scenes/net_newRoom.lua
+++ b/parts/scenes/net_newRoom.lua
@@ -105,10 +105,6 @@ scene.widgetList={
 	WIDGET.newSlider{name="holdCount",	x=120,y=1030,w=200,unit=6,	disp=ROOMval("holdCount"),code=ROOMsto("holdCount")},
 	WIDGET.newSwitch{name="infHold",	x=560,y=940,				disp=ROOMval("infHold"),code=ROOMrev("infHold"),hideF=function()return ROOMENV.holdCount==0 end},
 	WIDGET.newSwitch{name="phyHold",	x=560,y=1030,				disp=ROOMval("phyHold"),code=ROOMrev("phyHold"),hideF=function()return ROOMENV.holdCount==0 end},
-
-	--BG & BGM
-	WIDGET.newSelector{name="bg",		x=840,	y=1030,w=250,color='Y',list=BG.getList(),disp=ROOMval("bg"),code=function(i)ROOMENV.bg=i BG.set(i)end},
-	WIDGET.newSelector{name="bgm",		x=1120,	y=1030,w=250,color='Y',list=BGM.getList(),disp=ROOMval("bgm"),code=function(i)ROOMENV.bgm=i BGM.play(i)end},
 }
 
 return scene
\ No newline at end of file