diff --git a/Zframework/bg.lua b/Zframework/bg.lua
index 9cb63d5d..9fe65a06 100644
--- a/Zframework/bg.lua
+++ b/Zframework/bg.lua
@@ -1,4 +1,3 @@
-local function NULL(...)end
 local BG={
 	list={},
 	cur="",
diff --git a/main.lua b/main.lua
index f43ac6aa..51e2c33b 100644
--- a/main.lua
+++ b/main.lua
@@ -11,7 +11,7 @@
 local fs=love.filesystem
 
 --?
-NULL=function()end
+NONE={}function NULL()end
 DBP=print--use this if need debugging print
 SYSTEM=love.system.getOS()
 MOBILE=SYSTEM=="Android"or SYSTEM=="iOS"
diff --git a/parts/scenes/main.lua b/parts/scenes/main.lua
index 9f452785..2c429b8f 100644
--- a/parts/scenes/main.lua
+++ b/parts/scenes/main.lua
@@ -7,7 +7,7 @@ function sceneInit.main()
 	BGM.play("blank")
 	BG.set("space")
 
-	modeEnv={}
+	modeEnv=NONE
 	--Create demo player
 	destroyPlayers()
 	GAME.frame=0
diff --git a/parts/scenes/savedata.lua b/parts/scenes/savedata.lua
index 641ea856..d56edc72 100644
--- a/parts/scenes/savedata.lua
+++ b/parts/scenes/savedata.lua
@@ -5,7 +5,6 @@ function keyDown.savedata(key)
 	LOG.print("keyPress: ["..key.."]")
 end
 
-local NULL={}
 local function encodeCB(T)
 	love.system.setClipboardText(
 			love.data.encode(
@@ -30,7 +29,7 @@ local function parseCB()
 
 	s=loadstring(s)
 	if s then
-		setfenv(s,NULL)
+		setfenv(s,NONE)
 		LOG.print(text.importSuccess,COLOR.green)
 		return s()
 	end
@@ -44,10 +43,10 @@ WIDGET.init("savedata",{
 	WIDGET.newButton({name="exportSetting",	x=790,y=150,w=280,h=100,color="lGreen",font=25,code=function()encodeCB(SETTING)end}),
 	WIDGET.newButton({name="exportVK",		x=1090,y=150,w=280,h=100,color="lGreen",font=25,code=function()encodeCB(VK_org)end}),
 
-	WIDGET.newButton({name="importUnlock",	x=190,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NULL,RANKS)end}),
-	WIDGET.newButton({name="importData",	x=490,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NULL,STAT)end}),
-	WIDGET.newButton({name="importSetting",	x=790,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NULL,SETTING)end}),
-	WIDGET.newButton({name="importVK",		x=1090,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NULL,VK_org)end}),
+	WIDGET.newButton({name="importUnlock",	x=190,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NONE,RANKS)end}),
+	WIDGET.newButton({name="importData",	x=490,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NONE,STAT)end}),
+	WIDGET.newButton({name="importSetting",	x=790,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NONE,SETTING)end}),
+	WIDGET.newButton({name="importVK",		x=1090,y=300,w=280,h=100,color="lBlue",font=25,code=function()addToTable(parseCB()or NONE,VK_org)end}),
 
 	WIDGET.newButton({name="reset",			x=640,y=460,w=280,h=100,color="lRed",font=40,code=function()sceneTemp.reset=true end,hide=function()return sceneTemp.reset end}),
 	WIDGET.newButton({name="resetUnlock",	x=340,y=460,w=280,h=100,color="red",