diff --git a/Zframework/init.lua b/Zframework/init.lua
index a89799ba..5981781a 100644
--- a/Zframework/init.lua
+++ b/Zframework/init.lua
@@ -197,7 +197,7 @@ local function noDevkeyPressed(key)
 	if key=="f1"then
 		PROFILE.switch()
 	elseif key=="f2"then
-		LOG.print(string.format("System:%s[%s]\nluaVer:%s\njitVer:%s\njitVerNum:%s",SYSTEM,jit.arch,_VERSION,jit.version,jit.version_num))
+		LOG.print(("System:%s[%s]\nluaVer:%s\njitVer:%s\njitVerNum:%s"):format(SYSTEM,jit.arch,_VERSION,jit.version,jit.version_num))
 	elseif key=="f3"then
 		for _=1,8 do
 			local P=PLY_ALIVE[rnd(#PLY_ALIVE)]
diff --git a/Zframework/widget.lua b/Zframework/widget.lua
index 4c620354..d164b87c 100644
--- a/Zframework/widget.lua
+++ b/Zframework/widget.lua
@@ -3,7 +3,7 @@ local gc=love.graphics
 
 local int,abs=math.floor,math.abs
 local max,min=math.max,math.min
-local sub,format=string.sub,string.format
+local sub=string.sub
 local ins=table.insert
 local COLOR=COLOR
 local setFont,mStr=setFont,mStr
@@ -182,7 +182,7 @@ function button:draw()
 	end
 end
 function button:getInfo()
-	return format("x=%d,y=%d,w=%d,h=%d,font=%d",self.x+self.w*.5,self.y+self.h*.5,self.w,self.h,self.font)
+	return("x=%d,y=%d,w=%d,h=%d,font=%d"):format(self.x+self.w*.5,self.y+self.h*.5,self.w,self.h,self.font)
 end
 function button:press()
 	self.code()
@@ -276,7 +276,7 @@ function key:draw()
 	end
 end
 function key:getInfo()
-	return format("x=%d,y=%d,w=%d,h=%d,font=%d",self.x+self.w*.5,self.y+self.h*.5,self.w,self.h,self.font)
+	return("x=%d,y=%d,w=%d,h=%d,font=%d"):format(self.x+self.w*.5,self.y+self.h*.5,self.w,self.h,self.font)
 end
 function key:press()
 	self.code()
@@ -364,7 +364,7 @@ function switch:draw()
 	mDraw_Y(self.obj,x-12-ATV-self.obj:getWidth(),y+25)
 end
 function switch:getInfo()
-	return format("x=%d,y=%d,font=%d",self.x,self.y,self.font)
+	return("x=%d,y=%d,font=%d"):format(self.x,self.y,self.font)
 end
 function switch:press()
 	self.code()
@@ -488,7 +488,7 @@ function slider:draw()
 	end
 end
 function slider:getInfo()
-	return format("x=%d,y=%d,w=%d",self.x,self.y,self.w)
+	return("x=%d,y=%d,w=%d"):format(self.x,self.y,self.w)
 end
 function slider:drag(x)
 	if not x then return end
@@ -648,7 +648,7 @@ function selector:draw()
 	mStr(self.selText,x+w*.5,y+43-21)
 end
 function selector:getInfo()
-	return format("x=%d,y=%d,w=%d",self.x+self.w*.5,self.y+30,self.w)
+	return("x=%d,y=%d,w=%d"):format(self.x+self.w*.5,self.y+30,self.w)
 end
 function selector:press(x)
 	if x then
@@ -779,7 +779,7 @@ function inputBox:draw()
 	end
 end
 function inputBox:getInfo()
-	return format("x=%d,y=%d,w=%d,h=%d",self.x+self.w*.5,self.y+self.h*.5,self.w,self.h)
+	return("x=%d,y=%d,w=%d,h=%d"):format(self.x+self.w*.5,self.y+self.h*.5,self.w,self.h)
 end
 function inputBox:press()
 	if MOBILE then
@@ -946,7 +946,7 @@ function textBox:draw()
 	end
 end
 function textBox:getInfo()
-	return format("x=%d,y=%d,w=%d,h=%d",self.x+self.w*.5,self.y+self.h*.5,self.w,self.h)
+	return("x=%d,y=%d,w=%d,h=%d"):format(self.x+self.w*.5,self.y+self.h*.5,self.w,self.h)
 end
 function WIDGET.newTextBox(D)--name,x,y,w,h[,font=30][,lineH][,fix],hide
 	local _={
diff --git a/parts/data.lua b/parts/data.lua
index 641b5ddb..eac761eb 100644
--- a/parts/data.lua
+++ b/parts/data.lua
@@ -241,14 +241,13 @@ function DATA.copyQuestArgs()
 	return str
 end
 do--function DATA.pasteQuestArgs(str)
-	local sub=string.sub
 	function DATA.pasteQuestArgs(str)
 		if #str<4 then return end
 		local ENV=CUSTOMENV
-		ENV.holdCount=		byte(str,1)-48
-		ENV.ospin=			byte(str,2)~=90
-		ENV.missionKill=	byte(str,3)~=90
-		ENV.sequence=		sub(str,4)
+		ENV.holdCount=		str:byte(1)-48
+		ENV.ospin=			str:byte(2)~=90
+		ENV.missionKill=	str:byte(3)~=90
+		ENV.sequence=		str:sub(4)
 		return true
 	end
 end
diff --git a/parts/modes/bigbang.lua b/parts/modes/bigbang.lua
index f8c791a6..b46a76f8 100644
--- a/parts/modes/bigbang.lua
+++ b/parts/modes/bigbang.lua
@@ -1,4 +1,3 @@
-local format=string.format
 return{
 	color=COLOR.lH,
 	env={
@@ -11,8 +10,8 @@ return{
 	load=function()
 		PLY.newPlayer(1)
 	end,
-	score=function(P)return{P.modeData.event,P.stat.finesseRate*25/P.stat.piece}end,
-	scoreDisp=function(D)return D[1].."Stage "..format("%.2f",D[2]).."%"end,
+	score=function(P)return{P.modeData.event,P.stat.finesseRate*20/P.stat.piece}end,
+	scoreDisp=function(D)return("%d Stage %.2f%"):format(D[1],D[2])end,
 	comp=function(a,b)return a[1]>b[1]or a[1]==b[1]and a[2]>b[2]end,
 	getRank=function(P)
 		local W=P.modeData.event
diff --git a/parts/modes/classic_fast.lua b/parts/modes/classic_fast.lua
index 6bf1631f..e1d7200a 100644
--- a/parts/modes/classic_fast.lua
+++ b/parts/modes/classic_fast.lua
@@ -1,5 +1,4 @@
 local gc=love.graphics
-local format=string.format
 
 return{
 	color=COLOR.lBlue,
@@ -40,7 +39,7 @@ return{
 	mesDisp=function(P)
 		setFont(75)
 		local r=P.modeData.target*.1
-		mStr(r<11 and 18 or r<22 and r+8 or format("%02x",r*10-220),69,210)
+		mStr(r<11 and 18 or r<22 and r+8 or("%02x"):format(r*10-220),69,210)
 		mText(drawableText.speedLV,69,290)
 		setFont(45)
 		mStr(P.stat.row,69,320)
diff --git a/parts/modes/infinite.lua b/parts/modes/infinite.lua
index dc3879ce..129aee14 100644
--- a/parts/modes/infinite.lua
+++ b/parts/modes/infinite.lua
@@ -1,4 +1,3 @@
-local format=string.format
 return{
 	color=COLOR.white,
 	env={
@@ -11,8 +10,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/infinite_dig.lua b/parts/modes/infinite_dig.lua
index 8a79e48b..896f46d7 100644
--- a/parts/modes/infinite_dig.lua
+++ b/parts/modes/infinite_dig.lua
@@ -1,4 +1,3 @@
-local format=string.format
 local function check_rise(P)
 	local L=P.garbageBeneath
 	if #P.clearedRow==0 then
@@ -47,7 +46,7 @@ return{
 		setFont(45)
 		mStr(P.stat.dig,69,190)
 		mStr(P.stat.atk,69,310)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,420)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,420)
 		mText(drawableText.line,69,243)
 		mText(drawableText.atk,69,363)
 		mText(drawableText.eff,69,475)
diff --git a/parts/modes/tech_finesse.lua b/parts/modes/tech_finesse.lua
index 7753b0db..681942a7 100644
--- a/parts/modes/tech_finesse.lua
+++ b/parts/modes/tech_finesse.lua
@@ -1,5 +1,3 @@
-local format=string.format
-
 return{
 	color=COLOR.lYellow,
 	env={
@@ -16,8 +14,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_finesse_f.lua b/parts/modes/tech_finesse_f.lua
index 803ee16a..0221c295 100644
--- a/parts/modes/tech_finesse_f.lua
+++ b/parts/modes/tech_finesse_f.lua
@@ -1,4 +1,3 @@
-local format=string.format
 local function tech_check_hard(P)
 	local C=P.lastPiece
 	if C.row>0 then
@@ -28,8 +27,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_h.lua b/parts/modes/tech_h.lua
index e1898a34..6c00a729 100644
--- a/parts/modes/tech_h.lua
+++ b/parts/modes/tech_h.lua
@@ -1,5 +1,3 @@
-local format=string.format
-
 return{
 	color=COLOR.magenta,
 	env={
@@ -14,8 +12,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_h_plus.lua b/parts/modes/tech_h_plus.lua
index 94b77d78..9f69ebd5 100644
--- a/parts/modes/tech_h_plus.lua
+++ b/parts/modes/tech_h_plus.lua
@@ -1,4 +1,3 @@
-local format=string.format
 local function tech_check_hard(P)
 	local C=P.lastPiece
 	if C.row>0 then
@@ -25,8 +24,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_l.lua b/parts/modes/tech_l.lua
index 69ea2f22..e2c6c37b 100644
--- a/parts/modes/tech_l.lua
+++ b/parts/modes/tech_l.lua
@@ -1,5 +1,3 @@
-local format=string.format
-
 return{
 	color=COLOR.red,
 	env={
@@ -14,8 +12,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_l_plus.lua b/parts/modes/tech_l_plus.lua
index 90cfc486..72326b53 100644
--- a/parts/modes/tech_l_plus.lua
+++ b/parts/modes/tech_l_plus.lua
@@ -1,4 +1,3 @@
-local format=string.format
 local function tech_check_hard(P)
 	local C=P.lastPiece
 	if C.row>0 then
@@ -25,8 +24,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_n.lua b/parts/modes/tech_n.lua
index 60894c01..cc442a4a 100644
--- a/parts/modes/tech_n.lua
+++ b/parts/modes/tech_n.lua
@@ -1,5 +1,3 @@
-local format=string.format
-
 return{
 	color=COLOR.green,
 	env={
@@ -14,8 +12,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/modes/tech_n_plus.lua b/parts/modes/tech_n_plus.lua
index 44173d71..4fbd497d 100644
--- a/parts/modes/tech_n_plus.lua
+++ b/parts/modes/tech_n_plus.lua
@@ -1,4 +1,3 @@
-local format=string.format
 local function tech_check_hard(P)
 	local C=P.lastPiece
 	if C.row>0 then
@@ -25,8 +24,8 @@ return{
 	end,
 	mesDisp=function(P)
 		setFont(45)
-		mStr(format("%.1f",P.stat.atk),69,190)
-		mStr(format("%.2f",P.stat.atk/P.stat.row),69,310)
+		mStr(("%.1f"):format(P.stat.atk),69,190)
+		mStr(("%.2f"):format(P.stat.atk/P.stat.row),69,310)
 		mText(drawableText.atk,69,243)
 		mText(drawableText.eff,69,363)
 	end,
diff --git a/parts/scenes/app_15p.lua b/parts/scenes/app_15p.lua
index 5dc1a9e8..92d20267 100644
--- a/parts/scenes/app_15p.lua
+++ b/parts/scenes/app_15p.lua
@@ -1,7 +1,6 @@
 local gc=love.graphics
 
 local int,rnd=math.floor,math.random
-local format=string.format
 local mStr=mStr
 
 local scene={}
@@ -266,7 +265,7 @@ local backColor={
 function scene.draw()
 	setFont(40)
 	gc.setColor(1,1,1)
-	gc.print(format("%.3f",time),1026,80)
+	gc.print(("%.3f"):format(time),1026,80)
 	gc.setColor(1,.8,.8)
 	gc.print(move,1026,130)
 	gc.setColor(.8,.8,1)
diff --git a/parts/scenes/app_2048.lua b/parts/scenes/app_2048.lua
index e4baabca..8109a0f0 100644
--- a/parts/scenes/app_2048.lua
+++ b/parts/scenes/app_2048.lua
@@ -3,7 +3,6 @@ local setColor,rectangle=gc.setColor,gc.rectangle
 
 local int,abs=math.floor,math.abs
 local rnd,min=math.random,math.min
-local format=string.format
 local ins=table.insert
 local setFont=setFont
 local mStr=mStr
@@ -121,7 +120,7 @@ local function freshMaxTile()
 	maxTile=maxTile+1
 	if maxTile==12 then skipper.cd=0 end
 	SFX.play("reach")
-	ins(progress,format("%s - %.3fs",tileName[maxTile],TIME()-startTime))
+	ins(progress,("%s - %.3fs"):format(tileName[maxTile],TIME()-startTime))
 end
 local function squash(L)
 	local p1,p2=1
@@ -349,7 +348,7 @@ end
 function scene.draw()
 	setFont(35)
 	setColor(1,1,1)
-	gc.print(format("%.3f",time),1000,10)
+	gc.print(("%.3f"):format(time),1000,10)
 	gc.print(move,1000,45)
 
 	--Progress time list
diff --git a/parts/scenes/app_AtoZ.lua b/parts/scenes/app_AtoZ.lua
index 8b4691fb..c5388d7b 100644
--- a/parts/scenes/app_AtoZ.lua
+++ b/parts/scenes/app_AtoZ.lua
@@ -1,6 +1,5 @@
 local gc=love.graphics
 local rnd=math.random
-local format=string.format
 local mStr=mStr
 
 local levels={
@@ -89,11 +88,11 @@ end
 function scene.draw()
 	setFont(40)
 	gc.setColor(1,1,1)
-	gc.print(format("%.3f",time),1026,80)
+	gc.print(("%.3f"):format(time),1026,80)
 	gc.print(mistake,1026,150)
 
 	if state>0 then
-		gc.print(format("%.3f/s",(progress-1)/time),1026,220)
+		gc.print(("%.3f/s"):format((progress-1)/time),1026,220)
 	end
 
 	if state==2 then
diff --git a/parts/scenes/app_calc.lua b/parts/scenes/app_calc.lua
index 4487d8fe..64183a66 100644
--- a/parts/scenes/app_calc.lua
+++ b/parts/scenes/app_calc.lua
@@ -1,8 +1,6 @@
 local gc=love.graphics
 local kb=love.keyboard
 
-local find,sub,byte=string.find,string.sub,string.byte
-
 local scene={}
 
 local reg--register
@@ -18,7 +16,7 @@ end
 
 scene.mouseDown=NULL
 function scene.keyDown(k)
-	if byte(k)>=48 and byte(k)<=57 then
+	if k:byte()>=48 and k:byte()<=57 then
 		if sym=="="then
 			val=k
 			sym=false
@@ -34,7 +32,7 @@ function scene.keyDown(k)
 	elseif k:sub(1,2)=="kp"then
 		scene.keyDown(k:sub(3))
 	elseif k=="."then
-		if not(find(val,".",nil,true)or find(val,"e"))then
+		if not(val:find(".",nil,true)or val:find"e")then
 			if sym and not reg then
 				reg=val
 				val="0."
@@ -42,7 +40,7 @@ function scene.keyDown(k)
 			val=val.."."
 		end
 	elseif k=="e"then
-		if not find(val,"e")then
+		if not val:find"e"then
 			val=val.."e"
 		end
 	elseif k=="backspace"then
@@ -51,7 +49,7 @@ function scene.keyDown(k)
 		elseif sym then
 			sym=false
 		else
-			val=sub(val,1,-2)
+			val=val:sub(1,-2)
 		end
 		if val==""then val="0"end
 	elseif k=="+"or k=="="and kb.isDown("lshift","rshift")then sym="+" reg=false
@@ -59,9 +57,9 @@ function scene.keyDown(k)
 	elseif k=="-"then sym="-" reg=false
 	elseif k=="/"then sym="/" reg=false
 	elseif k=="return"then
-		if byte(val,-1)==101 then val=sub(val,1,-2)end
+		if val:byte(-1)==101 then val=val:sub(1,-2)end
 		if sym and reg then
-			if byte(reg,-1)==101 then reg=sub(reg,1,-2)end
+			if reg:byte(-1)==101 then reg=reg:sub(1,-2)end
 			val=
 				sym=="+"and (tonumber(reg)or 0)+tonumber(val)or
 				sym=="-"and (tonumber(reg)or 0)-tonumber(val)or
diff --git a/parts/scenes/app_dtw.lua b/parts/scenes/app_dtw.lua
index 68e5902f..87aa1ec6 100644
--- a/parts/scenes/app_dtw.lua
+++ b/parts/scenes/app_dtw.lua
@@ -1,7 +1,6 @@
 local gc=love.graphics
 
 local int,rnd=math.floor,math.random
-local format=string.format
 local ins,rem=table.insert,table.remove
 
 local targets={
@@ -132,7 +131,7 @@ local function touch(n)
 			keyTime[21]=nil
 			score=score+1
 			if not arcade and targets[score]then
-				ins(progress,format("%s - %.3fs",score,TIME()-startTime))
+				ins(progress,("%s - %.3fs"):format(score,TIME()-startTime))
 				if score==2600 then
 					for i=1,#pos do
 						pos[i]=626
@@ -211,14 +210,14 @@ function scene.draw()
 
 	if arcade then
 		--Draw rolling speed
-		mStr(format("%.2f/s",rollSpeed/2),155,490)
+		mStr(("%.2f/s"):format(rollSpeed/2),155,490)
 	else
 		--Draw speed
 		setFont(45)
 		gc.setColor(1,.6,.6)
-		mStr(format("%.2f",maxSpeed/60),155,460)
+		mStr(("%.2f"):format(maxSpeed/60),155,460)
 		gc.setColor(1,1,1)
-		mStr(format("%.2f",speed/60),155,520)
+		mStr(("%.2f"):format(speed/60),155,520)
 
 		--Progress time list
 		setFont(30)
@@ -230,7 +229,7 @@ function scene.draw()
 		--Draw time
 		gc.setColor(1,1,1)
 		setFont(45)
-		gc.print(format("%.3f",time),1030,70)
+		gc.print(("%.3f"):format(time),1030,70)
 	end
 
 	--Draw tiles
diff --git a/parts/scenes/app_schulteG.lua b/parts/scenes/app_schulteG.lua
index 41c49288..a95fdf8d 100644
--- a/parts/scenes/app_schulteG.lua
+++ b/parts/scenes/app_schulteG.lua
@@ -2,7 +2,6 @@ local gc=love.graphics
 local ms=love.mouse
 
 local int,rnd=math.floor,math.random
-local format=string.format
 local rem=table.remove
 local setFont=setFont
 local mStr=mStr
@@ -122,7 +121,7 @@ end
 function scene.draw()
 	setFont(40)
 	gc.setColor(1,1,1)
-	gc.print(format("%.3f",time),1026,80)
+	gc.print(("%.3f"):format(time),1026,80)
 	gc.print(mistake,1026,150)
 
 	setFont(70)
diff --git a/parts/scenes/app_tap.lua b/parts/scenes/app_tap.lua
index fc07425b..6c5a3b0c 100644
--- a/parts/scenes/app_tap.lua
+++ b/parts/scenes/app_tap.lua
@@ -1,6 +1,5 @@
 local gc=love.graphics
 local max=math.max
-local format=string.format
 local ins=table.insert
 local mStr=mStr
 
@@ -45,16 +44,16 @@ end
 
 function scene.draw()
 	setFont(70)gc.setColor(1,.6,.6)
-	mStr(format("%.2f",maxSpeed),640,20)
+	mStr(("%.2f"):format(maxSpeed),640,20)
 
 	setFont(100)gc.setColor(1,1,1)
-	mStr(format("%.2f",speed),640,150)
+	mStr(("%.2f"):format(speed),640,150)
 
 	setFont(35)
 	gc.setColor(.6,.6,.9)
-	mStr(format("%.2f",maxSpeed/60),640,95)
+	mStr(("%.2f"):format(maxSpeed/60),640,95)
 	gc.setColor(.8,.8,.8)
-	mStr(format("%.2f",speed/60),640,255)
+	mStr(("%.2f"):format(speed/60),640,255)
 
 	setFont(60)gc.setColor(.7,.7,.7)
 	mStr("/min",640,310)
diff --git a/parts/scenes/app_ten.lua b/parts/scenes/app_ten.lua
index 215a4aaa..ba5ac0d7 100644
--- a/parts/scenes/app_ten.lua
+++ b/parts/scenes/app_ten.lua
@@ -3,7 +3,6 @@ local msIsDown,kbIsDown,tcTouches=love.mouse.isDown,love.keyboard.isDown,love.to
 local setColor,rectangle=gc.setColor,gc.rectangle
 
 local int,rnd=math.floor,math.random
-local format=string.format
 local ins,rem=table.insert,table.remove
 local mStr=mStr
 
@@ -98,7 +97,7 @@ local function merge()
 		if chosen==maxTile then
 			maxTile=chosen+1
 			if maxTile>=6 then
-				ins(progress,format("%s - %.3fs",maxTile,TIME()-startTime))
+				ins(progress,("%s - %.3fs"):format(maxTile,TIME()-startTime))
 			end
 			maxNew=
 				maxTile<=4 and 2 or
@@ -224,7 +223,7 @@ end
 function scene.draw()
 	setFont(40)
 	setColor(1,1,1)
-	gc.print(format("%.3f",time),1026,50)
+	gc.print(("%.3f"):format(time),1026,50)
 	gc.print(score,1026,100)
 
 	--Progress time list
diff --git a/parts/scenes/custom_field.lua b/parts/scenes/custom_field.lua
index b62c3b28..7f20b4b2 100644
--- a/parts/scenes/custom_field.lua
+++ b/parts/scenes/custom_field.lua
@@ -230,8 +230,13 @@ function scene.keyDown(key)
 		LOG.print(text.exportSuccess,COLOR.G)
 	elseif key=="v"and kb.isDown("lctrl","rctrl")or key=="cV"then
 		local str=sys.getClipboardText()
-		local p=string.find(str,":")--ptr*
-		if p then str=sub(str,p+1)end
+		local p=str:find":"--ptr*
+		if p then
+			if not str:sub(1,p-1):find"Field"then
+				LOG.print(text.pasteWrongPlace)
+			end
+			str=str:sub(p+1)
+		end
 		if DATA.pasteBoard(str,page)then
 			LOG.print(text.importSuccess,COLOR.G)
 		else
diff --git a/parts/scenes/custom_mission.lua b/parts/scenes/custom_mission.lua
index 75e4d060..83747cd3 100644
--- a/parts/scenes/custom_mission.lua
+++ b/parts/scenes/custom_mission.lua
@@ -78,7 +78,12 @@ function scene.keyDown(key)
 	elseif key=="v"and kb.isDown("lctrl","rctrl")or key=="cV"then
 		local str=sys.getClipboardText()
 		local p=str:find":"--ptr*
-		if p then str=sub(str,p+1)end
+		if p then
+			if not str:sub(1,p-1):find"Target"then
+				LOG.print(text.pasteWrongPlace)
+			end
+			str=str:sub(p+1)
+		end
 		if DATA.pasteMission(str)then
 			LOG.print(text.importSuccess,COLOR.G)
 			cur=#MISSION
diff --git a/parts/scenes/custom_sequence.lua b/parts/scenes/custom_sequence.lua
index ecef0d5b..39a09824 100644
--- a/parts/scenes/custom_sequence.lua
+++ b/parts/scenes/custom_sequence.lua
@@ -92,8 +92,13 @@ function scene.keyDown(key)
 		end
 	elseif key=="v"and kb.isDown("lctrl","rctrl")or key=="cV"then
 		local str=sys.getClipboardText()
-		local p=string.find(str,":")--ptr*
-		if p then str=sub(str,p+1)end
+		local p=str:find":"--ptr*
+		if p then
+			if not str:sub(1,p-1):find"SEQ"then
+				LOG.print(text.pasteWrongPlace)
+			end
+			str=str:sub(p+1)
+		end
 		if DATA.pasteSequence(str)then
 			LOG.print(text.importSuccess,COLOR.G)
 			cur=#BAG
diff --git a/parts/scenes/pause.lua b/parts/scenes/pause.lua
index 76ff2b7e..416325e6 100644
--- a/parts/scenes/pause.lua
+++ b/parts/scenes/pause.lua
@@ -1,6 +1,5 @@
 local gc=love.graphics
 local sin,log=math.sin,math.log10
-local format=string.format
 
 local GAME,SCR=GAME,SCR
 local setFont,mStr=setFont,mStr
@@ -39,16 +38,16 @@ function scene.sceneInit(org)
 
 	local frameLostRate=(S.frame/S.time/60-1)*100
 	form={
-		{COLOR.Z,STRING.time(S.time),COLOR[frameLostRate>10 and"R"or frameLostRate>3 and"Y"or"H"],format(" (%.2f%%)",frameLostRate)},
-		format("%d/%d/%d",S.key,S.rotate,S.hold),
-		format("%d  %.2fPPS",S.piece,S.piece/S.time),
-		format("%d(%d)  %.2fLPM",S.row,S.dig,S.row/S.time*60),
-		format("%d(%d)  %.2fAPM",S.atk,S.digatk,S.atk/S.time*60),
-		format("%d(%d-%d)",S.pend,S.recv,S.recv-S.pend),
-		format("%d/%d/%d/%d",S.clears[1],S.clears[2],S.clears[3],S.clears[4]),
-		format("(%d)/%d/%d/%d",S.spins[1],S.spins[2],S.spins[3],S.spins[4]),
-		format("%d/%d ; %d/%d",S.b2b,S.b3b,S.pc,S.hpc),
-		format("%d/%dx/%.2f%%",S.extraPiece,S.maxFinesseCombo,S.finesseRate*20/S.piece),
+		{COLOR.Z,STRING.time(S.time),COLOR[frameLostRate>10 and"R"or frameLostRate>3 and"Y"or"H"],(" (%.2f%%)"):format(frameLostRate)},
+		("%d/%d/%d"):format(S.key,S.rotate,S.hold),
+		("%d  %.2fPPS"):format(S.piece,S.piece/S.time),
+		("%d(%d)  %.2fLPM"):format(S.row,S.dig,S.row/S.time*60),
+		("%d(%d)  %.2fAPM"):format(S.atk,S.digatk,S.atk/S.time*60),
+		("%d(%d-%d)"):format(S.pend,S.recv,S.recv-S.pend),
+		("%d/%d/%d/%d"):format(S.clears[1],S.clears[2],S.clears[3],S.clears[4]),
+		("(%d)/%d/%d/%d"):format(S.spins[1],S.spins[2],S.spins[3],S.spins[4]),
+		("%d/%d ; %d/%d"):format(S.b2b,S.b3b,S.pc,S.hpc),
+		("%d/%dx/%.2f%%"):format(S.extraPiece,S.maxFinesseCombo,S.finesseRate*20/S.piece),
 	}
 	--From right-down, 60 degree each
 	radar={
@@ -67,7 +66,7 @@ function scene.sceneInit(org)
 	end
 
 	for i=1,6 do
-		radar[i]=format("%.2f",radar[i])..text.radarData[i]
+		radar[i]=("%.2f%s"):format(radar[i],text.radarData[i])
 	end
 	local f=1
 	for i=1,6 do
@@ -184,7 +183,7 @@ function scene.draw()
 	setFont(25)
 	if GAME.pauseCount>0 then
 		gc.setColor(1,.4,.4,T)
-		gc.print(text.pauseCount..":["..GAME.pauseCount.."] "..format("%.2f",GAME.pauseTime).."s",40,180)
+		gc.print(("%s:[%d] %.2fs"):format(text.pauseCount,GAME.pauseCount,GAME.pauseTime),40,180)
 	end
 
 	gc.setColor(1,1,1,T)
diff --git a/parts/scenes/stat.lua b/parts/scenes/stat.lua
index db64a90a..d90ac2a5 100644
--- a/parts/scenes/stat.lua
+++ b/parts/scenes/stat.lua
@@ -1,7 +1,6 @@
 local gc=love.graphics
 
 local abs,int,sin=math.abs,math.floor,math.sin
-local format=string.format
 local mStr=mStr
 
 local scene={}
@@ -34,10 +33,10 @@ function scene.sceneInit()
 		S.piece.."  "..S.row.."  "..int(S.atk),
 		S.recv.."  "..S.off.."  "..S.pend,
 		S.dig.."  "..int(S.digatk),
-		format("%.2f  %.2f",S.atk/S.row,S.digatk/S.dig),
+		("%.2f  %.2f"):format(S.atk/S.row,S.digatk/S.dig),
 		S.b2b.."  "..S.b3b,
 		S.pc.."  "..S.hpc,
-		format("%d/%.2f%%",S.extraPiece,S.finesseRate*20/S.piece),
+		("%d/%.2f%%"):format(S.extraPiece,S.finesseRate*20/S.piece),
 	}
 	for i=1,11 do
 		item[i]=text.stat[i].."\t"..item[i]