diff --git a/parts/language/lang_en.lua b/parts/language/lang_en.lua
index 2892641e..2c81d53d 100644
--- a/parts/language/lang_en.lua
+++ b/parts/language/lang_en.lua
@@ -770,6 +770,7 @@ return{
 		['infinite_dig']=		{"Infinite: Dig",	"",				"Dig-diggi-dug."},
 		['sprintFix']=			{"Sprint",			"NO LEFT/RIGHT"},
 		['sprintLock']=			{"Sprint",			"NO ROTATIONS"},
+		['sprintSmooth']=		{"Sprint",			"NO FRICTION"},
 		['marathon_bfmax']=		{"Marathon",		"ULTIMATE"},
 		['custom_clear']=		{"Custom",			"NORMAL"},
 		['custom_puzzle']=		{"Custom",			"PUZZLE"},
diff --git a/parts/language/lang_fr.lua b/parts/language/lang_fr.lua
index 60c4d470..41bc1ef4 100644
--- a/parts/language/lang_fr.lua
+++ b/parts/language/lang_fr.lua
@@ -681,7 +681,8 @@ return{
 		['infinite_dig']=		{"Infini : Dig",	"",				"Creuser, creuser, creuser."},
 		['sprintFix']=			{"Sprint",			"Sans gauche/droite"},
 		['sprintLock']=			{"Sprint",			"Sans rotation"},
-		['marathon_bfmax']=		{"Marathon",			"ULTIME"},
+		-- ['sprintSmooth']=		{"Sprint",			"NO FRICTION"},
+		['marathon_bfmax']=		{"Marathon",		"ULTIME"},
 		['custom_clear']=		{"Perso.",			"NORMAL"},
 		['custom_puzzle']=		{"Perso.",			"PUZZLE"},
 	},
diff --git a/parts/language/lang_pt.lua b/parts/language/lang_pt.lua
index 0573c58d..d7206a41 100644
--- a/parts/language/lang_pt.lua
+++ b/parts/language/lang_pt.lua
@@ -766,6 +766,7 @@ return{
 		['infinite_dig']=		{"Infinito:Cave",	"",				"Cava, Cava, Cava."},
 		['sprintFix']=			{"Sprint",			"SEM ESQUERDA/DIREITA"},
 		['sprintLock']=			{"Sprint",			"SEM ROTAÇÃO"},
+		-- ['sprintSmooth']=		{"Sprint",			"NO FRICTION"},
 		['marathon_bfmax']=		{"Maratona",		"ULTIMATE"},
 		['custom_clear']=		{"Custom",			"NORMAL"},
 		['custom_puzzle']=		{"Custom",			"PUZZLE"},
diff --git a/parts/language/lang_sp.lua b/parts/language/lang_sp.lua
index f41e6002..372ce886 100644
--- a/parts/language/lang_sp.lua
+++ b/parts/language/lang_sp.lua
@@ -678,6 +678,7 @@ return{
 		['infinite_dig']=		{"Infinito: Queso",	"",				"Limpia, limpia, más limpia que tú."},
 		['sprintFix']=			{"Sprint",			"Sin mover a Izq./Der."},
 		['sprintLock']=			{"Sprint",			"Sin rotar"},
+		-- ['sprintSmooth']=		{"Sprint",			"NO FRICTION"},
 		['marathon_bfmax']=		{"Maratón",			"Supremo"},
 		['custom_clear']=		{"Personalizado",	"Normal"},
 		['custom_puzzle']=		{"Personalizado",	"Puzzle"},
diff --git a/parts/language/lang_yygq.lua b/parts/language/lang_yygq.lua
index cb4a780d..8fbd49b4 100644
--- a/parts/language/lang_yygq.lua
+++ b/parts/language/lang_yygq.lua
@@ -279,6 +279,7 @@ return{
 		['infinite_dig']=		{"无尽:挖掘",	"",			"闲得慌就来挖"},
 		['sprintFix']=			{"竞速",		"无移动"},
 		['sprintLock']=			{"竞速",		"无旋转"},
+		['sprintSmooth']=		{"竞速",		"无摩擦"},
 		['marathon_bfmax']=		{"马拉松",		"极限"},
 		['custom_clear']=		{"自定义",		"普通"},
 		['custom_puzzle']=		{"自定义",		"拼图"},
diff --git a/parts/language/lang_zh.lua b/parts/language/lang_zh.lua
index ef656244..74f15ee1 100644
--- a/parts/language/lang_zh.lua
+++ b/parts/language/lang_zh.lua
@@ -771,6 +771,7 @@ return{
 		['infinite_dig']=		{"无尽:挖掘",	"",			"挖呀挖呀挖"},
 		['sprintFix']=			{"竞速",		"无移动"},
 		['sprintLock']=			{"竞速",		"无旋转"},
+		['sprintSmooth']=		{"竞速",		"无摩擦"},
 		['marathon_bfmax']=		{"马拉松",		"极限"},
 		['custom_clear']=		{"自定义",		"普通"},
 		['custom_puzzle']=		{"自定义",		"拼图"},
diff --git a/parts/language/lang_zh2.lua b/parts/language/lang_zh2.lua
index 92173186..5dc90954 100644
--- a/parts/language/lang_zh2.lua
+++ b/parts/language/lang_zh2.lua
@@ -227,6 +227,7 @@ return{
 		['infinite_dig']=		{"无尽:挖掘",	"",			"挖呀挖呀挖"},
 		['sprintFix']=			{"竞速",		"无移动"},
 		['sprintLock']=			{"竞速",		"无旋转"},
+		['sprintSmooth']=		{"竞速",		"无摩擦"},
 		['marathon_bfmax']=		{"马拉松",		"极限"},
 		['custom_clear']=		{"自定义",		"普通"},
 		['custom_puzzle']=		{"自定义",		"拼图"},
diff --git a/parts/modes.lua b/parts/modes.lua
index aee88c39..4f20ee3d 100644
--- a/parts/modes.lua
+++ b/parts/modes.lua
@@ -111,10 +111,11 @@ return{
 
 	{name='sprintFix'},
 	{name='sprintLock'},
+
+	{name='sprintSmooth'},
 	{name='marathon_bfmax'},
 
 	{name='custom_puzzle'},
 	{name='custom_clear'},
-
 	{name="netBattle"},
 }
\ No newline at end of file
diff --git a/parts/modes/sprintSmooth.lua b/parts/modes/sprintSmooth.lua
new file mode 100644
index 00000000..2cc29c2b
--- /dev/null
+++ b/parts/modes/sprintSmooth.lua
@@ -0,0 +1,31 @@
+return{
+	color=COLOR.green,
+	env={
+		drop=0,lock=120,
+		nextCount=3,
+		das=0,arr=0,
+		dropPiece=function(P)if P.stat.row>=40 then P:win('finish')end end,
+		bg='aura',bgm='waterfall',
+	},
+	load=function()
+		PLY.newPlayer(1)
+	end,
+	mesDisp=function(P)
+		setFont(55)
+		local r=40-P.stat.row
+		if r<0 then r=0 end
+		mStr(r,69,265)
+		PLY.draw.drawTargetLine(P,r)
+	end,
+	getRank=function(P)
+		if P.stat.row<40 then return end
+		local T=P.stat.time
+		return
+		T<=40 and 5 or
+		T<=50 and 4 or
+		T<=70 and 3 or
+		T<=100 and 2 or
+		T<=150 and 1 or
+		0
+	end,
+}
\ No newline at end of file
diff --git a/parts/scenes/setting_sound.lua b/parts/scenes/setting_sound.lua
index b3b9dc3b..a0458c51 100644
--- a/parts/scenes/setting_sound.lua
+++ b/parts/scenes/setting_sound.lua
@@ -23,8 +23,16 @@ function scene.mouseDown(x,y)
 		jump=10
 		local t=TIME()-last
 		if t>1 then
-			VOC.play((t<1.5 or t>15)and"doubt"or rnd()<.8 and"happy"or"egg")
-			last=TIME()
+			if t>2.6 and t<3 then
+				loadGame('sprintSmooth',true)
+			else
+				VOC.play(
+					(t<1.5 or t>15)and"doubt"or
+					rnd()<.8 and"happy"or
+					"egg"
+				)
+				last=TIME()
+			end
 		end
 	end
 end