diff --git a/media/effect/chiptune/back.ogg b/media/effect/chiptune/back.ogg
new file mode 100644
index 00000000..16e9b621
Binary files /dev/null and b/media/effect/chiptune/back.ogg differ
diff --git a/parts/scenes/about.lua b/parts/scenes/about.lua
index 12ec2723..3adb13b7 100644
--- a/parts/scenes/about.lua
+++ b/parts/scenes/about.lua
@@ -59,7 +59,7 @@ scene.widgetList={
     WIDGET.newButton{name='staff',  x=1140,y=380,w=220,h=80,font=35,code=goScene'staff'},
     WIDGET.newButton{name='his',    x=1140,y=480,w=220,h=80,font=35,code=goScene'history'},
     WIDGET.newButton{name='legals', x=1140,y=580,w=220,h=80,font=35,code=goScene'legals'},
-    WIDGET.newButton{name='back',   x=640, y=600,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',   x=640, y=600,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/account.lua b/parts/scenes/account.lua
index 17908c5b..cc74b10f 100644
--- a/parts/scenes/account.lua
+++ b/parts/scenes/account.lua
@@ -8,7 +8,7 @@ end
 
 scene.widgetList={
     WIDGET.newText{name='title',x=80,y=50,font=70,align='L'},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_15p.lua b/parts/scenes/app_15p.lua
index ad8bf787..687e7d55 100644
--- a/parts/scenes/app_15p.lua
+++ b/parts/scenes/app_15p.lua
@@ -315,7 +315,7 @@ scene.widgetList={
     WIDGET.newSwitch{name='slide',  x=240, y=420,lim=200,font=40,disp=function()return slide end,  code=pressKey'e',hideF=ifGaming},
     WIDGET.newSwitch{name='pathVis',x=240, y=510,lim=200,font=40,disp=function()return pathVis end,code=pressKey'r',hideF=function()return state==1 or not slide end},
     WIDGET.newSwitch{name='revKB',  x=240, y=600,lim=200,font=40,disp=function()return revKB end,  code=pressKey't',hideF=ifGaming},
-    WIDGET.newButton{name='back',   x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',   x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_2048.lua b/parts/scenes/app_2048.lua
index 530beb8d..7691f5fb 100644
--- a/parts/scenes/app_2048.lua
+++ b/parts/scenes/app_2048.lua
@@ -493,7 +493,7 @@ scene.widgetList={
     WIDGET.newKey{name='record2',      x=1100,y=450,w=220,h=50,fText="",   color='H',code=pressKey'2',     hideF=function()return state==2 end},
     WIDGET.newKey{name='replay1',      x=1245,y=390,w=50,fText="!",        color='G',code=pressKey'c1',    hideF=function()return state==2 or #repeater.seq[1]==0 end},
     WIDGET.newKey{name='replay2',      x=1245,y=450,w=50,fText="!",        color='G',code=pressKey'c2',    hideF=function()return state==2 or #repeater.seq[2]==0 end},
-    WIDGET.newButton{name='back',      x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',      x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_AtoZ.lua b/parts/scenes/app_AtoZ.lua
index 197858bb..dfe49795 100644
--- a/parts/scenes/app_AtoZ.lua
+++ b/parts/scenes/app_AtoZ.lua
@@ -119,7 +119,7 @@ scene.widgetList={
     WIDGET.newSelector{name='level', x=640,y=640,w=200,list={'A_Z','Z_A','Tech1','Tech2','KeyTest1','KeyTest2','Hello','Roll1','Roll2','Roll3','ZZZ','ZXZX','ZMZM','Stair','Stair2','Stair3','BPW'},disp=function()return levelName end,code=function(i)levelName=i;targetString=levels[i]end,hideF=function()return state>0 end},
     WIDGET.newButton{name='reset',   x=160,y=100,w=180,h=100,color='lG',font=50,fText=CHAR.icon.retry_spin,code=pressKey'space'},
     WIDGET.newButton{name='keyboard',x=160,y=210,w=180,h=100,code=function()love.keyboard.setTextInput(true,0,select(2,SCR.xOy:transformPoint(0,500)),1,1)end,hide=not MOBILE},
-    WIDGET.newButton{name='back',    x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',    x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_UTTT.lua b/parts/scenes/app_UTTT.lua
index 651c5d01..e8017377 100644
--- a/parts/scenes/app_UTTT.lua
+++ b/parts/scenes/app_UTTT.lua
@@ -232,7 +232,7 @@ end
 
 scene.widgetList={
     WIDGET.newButton{name='reset',x=1140,y=540,w=170,h=80,font=50,fText=CHAR.icon.retry_spin,color='lG',code=restart},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_arithmetic.lua b/parts/scenes/app_arithmetic.lua
index cb6f6d8b..62a12335 100644
--- a/parts/scenes/app_arithmetic.lua
+++ b/parts/scenes/app_arithmetic.lua
@@ -231,7 +231,7 @@ scene.widgetList={
     WIDGET.newKey{name='7',x=540,y=320,w=90,font=60,fText="7",code=pressKey'7'},
     WIDGET.newKey{name='8',x=640,y=320,w=90,font=60,fText="8",code=pressKey'8'},
     WIDGET.newKey{name='9',x=740,y=320,w=90,font=60,fText="9",code=pressKey'9'},
-    WIDGET.newButton{name='back',x=1200,y=660,w=110,h=60,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1200,y=660,w=110,h=60,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_calc.lua b/parts/scenes/app_calc.lua
index eb6de02d..d9137b40 100644
--- a/parts/scenes/app_calc.lua
+++ b/parts/scenes/app_calc.lua
@@ -165,7 +165,7 @@ scene.widgetList={
     WIDGET.newKey{name='/',x=445,y=600,w=90,sound=false,fText="/",color='lB',font=50,code=pressKey'/'},
     WIDGET.newKey{name='<',x=545,y=300,w=90,sound=false,fText=CHAR.key.backspace,color='lR',font=50,code=pressKey'backspace'},
     WIDGET.newKey{name='=',x=545,y=400,w=90,sound=false,fText="=",color='lY',font=50,code=pressKey'return'},
-    WIDGET.newKey{name='back',x=1135,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newKey{name='back',x=1135,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_cannon.lua b/parts/scenes/app_cannon.lua
index a4f7b668..406f3f58 100644
--- a/parts/scenes/app_cannon.lua
+++ b/parts/scenes/app_cannon.lua
@@ -127,7 +127,7 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_cubefield.lua b/parts/scenes/app_cubefield.lua
index 1ed6d884..651f76ad 100644
--- a/parts/scenes/app_cubefield.lua
+++ b/parts/scenes/app_cubefield.lua
@@ -318,7 +318,7 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newKey{name='back',x=1140,y=80,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newKey{name='back',x=1140,y=80,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_dropper.lua b/parts/scenes/app_dropper.lua
index 72ee0a07..a67d63a9 100644
--- a/parts/scenes/app_dropper.lua
+++ b/parts/scenes/app_dropper.lua
@@ -236,7 +236,7 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newButton{name='back',x=1140,y=60,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=60,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_dtw.lua b/parts/scenes/app_dtw.lua
index 5745d7c1..eb49595a 100644
--- a/parts/scenes/app_dtw.lua
+++ b/parts/scenes/app_dtw.lua
@@ -383,7 +383,7 @@ scene.widgetList={
     WIDGET.newButton{name='reset',x=155,y=100,w=180,h=100,color='lG',font=50,fText=CHAR.icon.retry_spin,code=pressKey'r'},
     modeSelector,bgmSelector,colorSelector,
     arcadeSwitch,
-    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_link.lua b/parts/scenes/app_link.lua
index aac71b64..210a4626 100644
--- a/parts/scenes/app_link.lua
+++ b/parts/scenes/app_link.lua
@@ -399,7 +399,7 @@ end
 scene.widgetList={
     WIDGET.newButton{name='reset',x=80,y=60,w=110,h=60,color='lG',fText=CHAR.icon.retry_spin,code=pressKey'r',hideF=function()return state==0 end},
     WIDGET.newSwitch{name='invis',x=100,y=140,lim=80,disp=function()return invis end,code=pressKey'q',hideF=function()return state==1 end},
-    WIDGET.newButton{name='back',x=1200,y=660,w=110,font=50,fText=CHAR.icon.back,code=pressKey'escape'},
+    WIDGET.newButton{name='back',x=1200,y=660,w=110,font=50,sound='back',fText=CHAR.icon.back,code=pressKey'escape'},
 }
 
 return scene
diff --git a/parts/scenes/app_memorize.lua b/parts/scenes/app_memorize.lua
index f54b0a96..32b032ba 100644
--- a/parts/scenes/app_memorize.lua
+++ b/parts/scenes/app_memorize.lua
@@ -120,7 +120,7 @@ scene.widgetList={
     WIDGET.newKey{name='7',x=540,y=320,w=90,font=60,fText="7",code=pressKey'7'},
     WIDGET.newKey{name='8',x=640,y=320,w=90,font=60,fText="8",code=pressKey'8'},
     WIDGET.newKey{name='9',x=740,y=320,w=90,font=60,fText="9",code=pressKey'9'},
-    WIDGET.newButton{name='back',x=1200,y=660,w=110,h=60,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1200,y=660,w=110,h=60,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_piano.lua b/parts/scenes/app_piano.lua
index 460eb247..f36bba2a 100644
--- a/parts/scenes/app_piano.lua
+++ b/parts/scenes/app_piano.lua
@@ -48,6 +48,6 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newButton{name="back", x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 return scene
diff --git a/parts/scenes/app_polyforge.lua b/parts/scenes/app_polyforge.lua
index 546e5995..a0786acb 100644
--- a/parts/scenes/app_polyforge.lua
+++ b/parts/scenes/app_polyforge.lua
@@ -165,7 +165,7 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newKey{name='back',x=1140,y=60,w=170,h=80,color='D',font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newKey{name='back',x=1140,y=60,w=170,h=80,color='D',font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_pong.lua b/parts/scenes/app_pong.lua
index e92c86b6..a7a09462 100644
--- a/parts/scenes/app_pong.lua
+++ b/parts/scenes/app_pong.lua
@@ -177,7 +177,7 @@ end
 
 scene.widgetList={
     WIDGET.newKey{name='reset',x=640,y=45,w=150,h=50,font=35,fText=CHAR.icon.retry_spin,code=pressKey'r'},
-    WIDGET.newKey{name='back',x=640,y=675,w=150,h=50,font=40,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newKey{name='back',x=640,y=675,w=150,h=50,font=40,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_reflect.lua b/parts/scenes/app_reflect.lua
index 53e73cc5..a087a822 100644
--- a/parts/scenes/app_reflect.lua
+++ b/parts/scenes/app_reflect.lua
@@ -131,7 +131,7 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newKey{name='back',x=640,y=675,w=150,h=50,font=40,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newKey{name='back',x=640,y=675,w=150,h=50,font=40,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_schulteG.lua b/parts/scenes/app_schulteG.lua
index e1b3bad2..d50e34cf 100644
--- a/parts/scenes/app_schulteG.lua
+++ b/parts/scenes/app_schulteG.lua
@@ -175,7 +175,7 @@ scene.widgetList={
     WIDGET.newSwitch{name='invis',    x=240,y=330,lim=200,font=40,disp=function()return invis end,    code=pressKey'q',hideF=function()return state==1 end},
     WIDGET.newSwitch{name='disappear',x=240,y=420,lim=200,font=40,disp=function()return disappear end,code=pressKey'w',hideF=function()return state==1 end},
     WIDGET.newSwitch{name='tapFX',    x=240,y=510,lim=200,font=40,disp=function()return tapFX end,    code=pressKey'e',hideF=function()return state==1 end},
-    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_spin.lua b/parts/scenes/app_spin.lua
index 1d12cbe9..11ae0c82 100644
--- a/parts/scenes/app_spin.lua
+++ b/parts/scenes/app_spin.lua
@@ -43,6 +43,6 @@ end
 
 scene.widgetList={
     WIDGET.newButton{name="spin", x=1140,y=360,w=120,font=60,fText=CHAR.icon.retry_spin,code=pressKey'space'},
-    WIDGET.newButton{name="back", x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 return scene
diff --git a/parts/scenes/app_tap.lua b/parts/scenes/app_tap.lua
index 79db93d2..72c4ee0f 100644
--- a/parts/scenes/app_tap.lua
+++ b/parts/scenes/app_tap.lua
@@ -72,7 +72,7 @@ end
 
 scene.widgetList={
     WIDGET.newKey{name='tap',x=640,y=540,w=626,h=260,fText="TAP",color='Z',font=100,code=function(i)love.keypressed('b'..i)end},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_ten.lua b/parts/scenes/app_ten.lua
index 61e2db0c..d7fbbc85 100644
--- a/parts/scenes/app_ten.lua
+++ b/parts/scenes/app_ten.lua
@@ -308,7 +308,7 @@ scene.widgetList={
     WIDGET.newSwitch{name='next', x=240,y=235,lim=200,font=40,disp=function()return nexts end,code=pressKey'q',hideF=function()return state==1 end},
     WIDGET.newSwitch{name='invis',x=240,y=305,lim=200,font=40,disp=function()return invis end,code=pressKey'w',hideF=function()return state==1 end},
     WIDGET.newSwitch{name='fast', x=240,y=375,lim=200,font=30,disp=function()return fast end,code=pressKey'e',hideF=function()return state==1 end},
-    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/app_triple.lua b/parts/scenes/app_triple.lua
index 9440973a..77316c86 100644
--- a/parts/scenes/app_triple.lua
+++ b/parts/scenes/app_triple.lua
@@ -345,6 +345,6 @@ end
 
 scene.widgetList={
     WIDGET.newButton{name='reset',x=160,y=100,w=180,h=100,color='lG',font=50,fText=CHAR.icon.retry_spin,code=pressKey'r'},
-    WIDGET.newButton{name="back", x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 return scene
diff --git a/parts/scenes/customGame.lua b/parts/scenes/customGame.lua
index e28c7695..5f80f91f 100644
--- a/parts/scenes/customGame.lua
+++ b/parts/scenes/customGame.lua
@@ -210,7 +210,7 @@ scene.widgetList={
     WIDGET.newButton{name='paste',         x=1070,y=380,w=310,h=70,color='lB',font=25,code=pressKey'cV'},
     WIDGET.newButton{name='play_clear',    x=1070,y=460,w=310,h=70,color='lY',font=35,code=pressKey'play1'},
     WIDGET.newButton{name='play_puzzle',   x=1070,y=540,w=310,h=70,color='lM',font=35,code=pressKey'play2',hideF=function()return #FIELD[1]==0 end},
-    WIDGET.newButton{name='back',          x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=pressKey'escape'},
+    WIDGET.newButton{name='back',          x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=pressKey'escape'},
 
     --Rule set
     WIDGET.newSelector{name='eventSet',    x=1050,y=760,w=340,color='H',list=sList.eventSet,disp=CUSval('eventSet'),code=CUSsto('eventSet')},
diff --git a/parts/scenes/custom_field.lua b/parts/scenes/custom_field.lua
index 29691c73..7e9866e0 100644
--- a/parts/scenes/custom_field.lua
+++ b/parts/scenes/custom_field.lua
@@ -481,7 +481,7 @@ scene.widgetList={
     WIDGET.newButton{name='prevPg', x=100, y=350,w=160,h=110,color='lG',font=20,code=pressKey'pageup',hideF=function()return page==1 end},
     WIDGET.newButton{name='nextPg', x=100, y=470,w=160,h=110,color='lG',font=20,code=pressKey'pagedown',hideF=function()return page==#FIELD end},
 
-    WIDGET.newButton{name='back',   x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',   x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/custom_mission.lua b/parts/scenes/custom_mission.lua
index f9015cb0..85216905 100644
--- a/parts/scenes/custom_mission.lua
+++ b/parts/scenes/custom_mission.lua
@@ -224,7 +224,7 @@ scene.widgetList={
     WIDGET.newButton{name='paste',  x=1140,y=540,w=170,h=80,color='lB',font=50,code=pressKey'cV',       fText=CHAR.icon.import},
     WIDGET.newSwitch{name='mission',x=1150,y=340,lim=280,disp=CUSval('missionKill'),code=CUSrev('missionKill')},
 
-    WIDGET.newButton{name='back',   x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',   x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/custom_sequence.lua b/parts/scenes/custom_sequence.lua
index 73e147fd..f8cdd2b9 100644
--- a/parts/scenes/custom_sequence.lua
+++ b/parts/scenes/custom_sequence.lua
@@ -220,7 +220,7 @@ scene.widgetList={
 
     WIDGET.newButton{name='copy', x=1140,y=460,w=170,h=80,color='lR',font=50,fText=CHAR.icon.export,code=pressKey'cC',hideF=function()return #BAG==0 end},
     WIDGET.newButton{name='paste',x=1140,y=550,w=170,h=80,color='lB',font=50,fText=CHAR.icon.import,code=pressKey'cV'},
-    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/dict.lua b/parts/scenes/dict.lua
index eec588ff..d06e0262 100644
--- a/parts/scenes/dict.lua
+++ b/parts/scenes/dict.lua
@@ -221,7 +221,7 @@ scene.widgetList={
     WIDGET.newKey{name='down',    x=1120,y=565,w=80,font=50,fText=CHAR.key.down,   code=pressKey'down',hide=not MOBILE},
     WIDGET.newKey{name='pageup',  x=1210,y=475,w=80,font=50,fText=CHAR.icon.toUp,  code=pressKey'pageup',hide=not MOBILE},
     WIDGET.newKey{name='pagedown',x=1210,y=565,w=80,font=50,fText=CHAR.icon.toDown,code=pressKey'pagedown',hide=not MOBILE},
-    WIDGET.newButton{name='back', x=1165,y=60,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1165,y=60,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/history.lua b/parts/scenes/history.lua
index 87d6f72d..7e07c1e5 100644
--- a/parts/scenes/history.lua
+++ b/parts/scenes/history.lua
@@ -24,7 +24,7 @@ end
 
 scene.widgetList={
     WIDGET.newTextBox{name='texts',x=30,y=45,w=1000,h=640,font=20,fix=true},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/lang.lua b/parts/scenes/lang.lua
index 360e8903..fe091041 100644
--- a/parts/scenes/lang.lua
+++ b/parts/scenes/lang.lua
@@ -68,7 +68,7 @@ scene.widgetList={
     WIDGET.newButton{x=271,y=472,w=346,h=120,font=45, fText=langList.zh_grass,color='N',code=function()_setLang('zh_grass')end},
     WIDGET.newButton{x=637,y=472,w=346,h=120,font=45, fText=langList.zh_yygq, color='S',code=function()_setLang('zh_yygq')end},
     WIDGET.newButton{x=1003,y=472,w=346,h=120,font=45,fText=langList.symbol,  color='B',code=function()_setLang('symbol')end},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/launchpad.lua b/parts/scenes/launchpad.lua
index 1bebdb59..c0fc6c78 100644
--- a/parts/scenes/launchpad.lua
+++ b/parts/scenes/launchpad.lua
@@ -287,7 +287,7 @@ scene.widgetList={
     WIDGET.newSlider{name='voc',  x=1000,y=220,lim=130,w=250,disp=SETval('voc'),code=function(v)SETTING.voc=v VOC.setVol(SETTING.voc)end},
     WIDGET.newSwitch{name='label',x=1200,y=290,lim=160,disp=function()return showLabel end,code=pressKey'space',},
     WIDGET.newButton{name='music',x=1140,y=540,w=170,h=80,font=40,code=pressKey'tab'},
-    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/legals.lua b/parts/scenes/legals.lua
index ab759e09..5d867b41 100644
--- a/parts/scenes/legals.lua
+++ b/parts/scenes/legals.lua
@@ -28,7 +28,7 @@ end
 
 scene.widgetList={
     WIDGET.newTextBox{name='texts',x=30,y=45,w=1000,h=640,font=15,fix=true},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/login.lua b/parts/scenes/login.lua
index ce802249..db0ed718 100644
--- a/parts/scenes/login.lua
+++ b/parts/scenes/login.lua
@@ -36,7 +36,7 @@ scene.widgetList={
     passwordBox,
     WIDGET.newSwitch{name='keepPW',  x=900, y=420,disp=function()return savePW end,code=function()savePW=not savePW end},
     WIDGET.newKey{name='login',      x=1140,y=540,w=170,h=80,font=40,code=_login},
-    WIDGET.newButton{name='back',    x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',    x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/manual.lua b/parts/scenes/manual.lua
index 6e0a18e2..9bb88665 100644
--- a/parts/scenes/manual.lua
+++ b/parts/scenes/manual.lua
@@ -30,7 +30,7 @@ end
 
 scene.widgetList={
     WIDGET.newTextBox{name='texts',x=30,y=45,w=1000,h=640,font=15,fix=true},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/mod.lua b/parts/scenes/mod.lua
index b2f7b3a6..a3dc3f77 100644
--- a/parts/scenes/mod.lua
+++ b/parts/scenes/mod.lua
@@ -158,7 +158,7 @@ scene.widgetList={
     WIDGET.newText{name='title',   x=80,y=50,font=70,align='L'},
     WIDGET.newText{name='unranked',x=1200,y=60,color='Y',font=50,align='R'},
     WIDGET.newButton{name='reset', x=1140,y=540,w=170,h=80,font=25,code=pressKey'tab'},
-    WIDGET.newButton{name='back',  x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',  x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/mode.lua b/parts/scenes/mode.lua
index 11b5adac..75d2d925 100644
--- a/parts/scenes/mode.lua
+++ b/parts/scenes/mode.lua
@@ -331,7 +331,7 @@ end
 scene.widgetList={
     WIDGET.newKey{name='mod',     x=140,y=655,w=220,h=80,font=35,code=goScene'mod'},
     WIDGET.newButton{name='start',x=1040,y=655,w=180,h=80,font=40,code=pressKey'return',hideF=function()return not mapCam.sel end},
-    WIDGET.newButton{name='back', x=1200,y=655,w=120,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1200,y=655,w=120,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/music.lua b/parts/scenes/music.lua
index beb15add..9c3bf0f9 100644
--- a/parts/scenes/music.lua
+++ b/parts/scenes/music.lua
@@ -129,7 +129,7 @@ scene.widgetList={
     WIDGET.newButton{name='play', x=200,y=390,w=120,code=pressKey'space',font=65,fText=CHAR.icon.play_pause},
     WIDGET.newButton{name='down', x=200,y=530,w=120,code=pressKey'down',hideF=function()return selected==#bgmList end,font=60,fText=CHAR.key.down},
     WIDGET.newButton{name='sound',x=1140,y=540,w=170,h=80,font=40,code=pressKey'tab'},
-    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back', x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/net_league.lua b/parts/scenes/net_league.lua
index 8b441457..e4199420 100644
--- a/parts/scenes/net_league.lua
+++ b/parts/scenes/net_league.lua
@@ -17,7 +17,7 @@ end
 scene.widgetList={
     WIDGET.newKey{name='setting',x=1200,y=160,w=90,h=90,font=60,fText=CHAR.icon.settings,code=goScene'setting_game'},
     WIDGET.newKey{name='match',x=640,y=500,w=760,h=140,font=60,code=function()MES.new('warn',text.notFinished)end},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/net_menu.lua b/parts/scenes/net_menu.lua
index 6a29c614..c80cee6e 100644
--- a/parts/scenes/net_menu.lua
+++ b/parts/scenes/net_menu.lua
@@ -30,7 +30,7 @@ scene.widgetList={
                 end
             end
         end},
-    WIDGET.newButton{name='back',  x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',  x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/net_newRoom.lua b/parts/scenes/net_newRoom.lua
index bacf4b6d..2697c303 100644
--- a/parts/scenes/net_newRoom.lua
+++ b/parts/scenes/net_newRoom.lua
@@ -86,7 +86,7 @@ scene.widgetList={
     --Capacity & Create & Back
     WIDGET.newSelector{name='capacity',     x=1070,y=330,w=310,color='lY',list={2,3,4,5,7,10,17,31,49,99},disp=ROOMval('capacity'),code=ROOMsto('capacity')},
     WIDGET.newButton{name='create',         x=1070,y=480,w=310,h=140,color='lN',font=40,code=_createRoom},
-    WIDGET.newButton{name='back',           x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',           x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 
     --Special rules
     WIDGET.newSwitch{name='ospin',          x=850, y=850, lim=210,disp=ROOMval('ospin'),    code=ROOMrev('ospin')},
diff --git a/parts/scenes/net_rooms.lua b/parts/scenes/net_rooms.lua
index 2afb39d9..0002e4ec 100644
--- a/parts/scenes/net_rooms.lua
+++ b/parts/scenes/net_rooms.lua
@@ -140,7 +140,7 @@ scene.widgetList={
     WIDGET.newKey{name='refresh',    x=250,y=630,w=140,h=120,code=_fetchRoom,hideF=function()return fetchTimer>7 end},
     WIDGET.newKey{name='new',        x=510,y=630,w=260,h=120,code=goScene'net_newRoom'},
     WIDGET.newKey{name='join',       x=780,y=630,w=140,h=120,code=pressKey'join',hideF=function()return roomList:getLen()==0 or NET.getlock('enterRoom')end},
-    WIDGET.newButton{name='back',    x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=pressKey'escape'},
+    WIDGET.newButton{name='back',    x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=pressKey'escape'},
 }
 
 return scene
diff --git a/parts/scenes/register.lua b/parts/scenes/register.lua
index 28e92426..934484ae 100644
--- a/parts/scenes/register.lua
+++ b/parts/scenes/register.lua
@@ -28,7 +28,7 @@ scene.widgetList={
     WIDGET.newKey{name='register',      x=640, y=640,w=300,h=80,font=40,code=_register,hideF=function()return NET.getlock('register')end},
     WIDGET.newText{name='registering',  x=640, y=605,font=50,hideF=function()return not NET.getlock('register')end},
 
-    WIDGET.newButton{name='back',       x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',       x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/replays.lua b/parts/scenes/replays.lua
index a1a3b6fd..4845b350 100644
--- a/parts/scenes/replays.lua
+++ b/parts/scenes/replays.lua
@@ -143,7 +143,7 @@ scene.widgetList={
     WIDGET.newButton{name='import',x=350,y=640,w=140,h=80,color='lN',code=pressKey'cV',font=50,fText=CHAR.icon.import},
     WIDGET.newButton{name='play',  x=700,y=640,w=170,h=80,color='lY',code=pressKey'return',font=65,fText=CHAR.icon.play},
     WIDGET.newButton{name='delete',x=850,y=640,w=80,h=80,color='lR',code=pressKey'delete',font=50,fText=CHAR.icon.trash},
-    WIDGET.newButton{name='back',  x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',  x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/savedata.lua b/parts/scenes/savedata.lua
index eb877ab2..752d907b 100644
--- a/parts/scenes/savedata.lua
+++ b/parts/scenes/savedata.lua
@@ -82,7 +82,7 @@ scene.widgetList={
     WIDGET.newText{name='notLogin',   x=55,y=550,color='dB',align='L',font=30,hideF=function()return WS.status('user')=='running'end},
     WIDGET.newButton{name='upload',   x=190,y=610,w=280,h=90,color='lB',font=25,code=NET.uploadSave,hideF=function()return WS.status('user')~='running'end},
     WIDGET.newButton{name='download', x=490,y=610,w=280,h=90,color='lB',font=25,code=NET.downloadSave,hideF=function()return WS.status('user')~='running'end},
-    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/setting_control.lua b/parts/scenes/setting_control.lua
index 4bb88353..0c3a74b9 100644
--- a/parts/scenes/setting_control.lua
+++ b/parts/scenes/setting_control.lua
@@ -105,7 +105,7 @@ scene.widgetList={
             _.sddas,_.sdarr=0,2
             _.ihs,_.irs,_.ims=false,false,false
         end},
-    WIDGET.newButton{name='back',   x=1140,   y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',   x=1140,   y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/setting_game.lua b/parts/scenes/setting_game.lua
index cd1bb07c..537a9f90 100644
--- a/parts/scenes/setting_game.lua
+++ b/parts/scenes/setting_game.lua
@@ -59,7 +59,7 @@ scene.widgetList={
                 end
             end
         end},
-    WIDGET.newButton{name='back',     x=1140, y=640, w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',     x=1140, y=640, w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/setting_key.lua b/parts/scenes/setting_key.lua
index dd83128a..bf78ab34 100644
--- a/parts/scenes/setting_key.lua
+++ b/parts/scenes/setting_key.lua
@@ -231,7 +231,7 @@ scene.widgetList={
 
     WIDGET.newKey{name='restart',x=150,y=670,w=180,h=60,code=function()_setSel(0)end},
 
-    WIDGET.newButton{name='back',x=1140,y=640,w=190,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=190,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/setting_skin.lua b/parts/scenes/setting_skin.lua
index ed5e77b3..0d8ca3e1 100644
--- a/parts/scenes/setting_skin.lua
+++ b/parts/scenes/setting_skin.lua
@@ -124,7 +124,7 @@ scene.widgetList={
             end
             SFX.play('hold')
         end},
-    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
     playEgg,
 }
 
diff --git a/parts/scenes/setting_sound.lua b/parts/scenes/setting_sound.lua
index f400dd62..f1488ebe 100644
--- a/parts/scenes/setting_sound.lua
+++ b/parts/scenes/setting_sound.lua
@@ -95,7 +95,7 @@ scene.widgetList={
     WIDGET.newButton{name='apply',    x=1100,y=400,w=180,h=60,code=function()SETTING.sfxPack=sfxPack SFX.load('media/effect/'..sfxPack..'/')end,hideF=function()return SETTING.sfxPack==sfxPack end},
     WIDGET.newSelector{name='vocPack',x=1100,y=470,w=200,color='lV',list=VOCPACKS,disp=function()return vocPack end,code=function(i)vocPack=i end},
     WIDGET.newButton{name='apply',    x=1100,y=540,w=180,h=60,code=function()SETTING.vocPack=vocPack VOC.load('media/vocal/'..vocPack..'/')end,hideF=function()return SETTING.vocPack==vocPack end},
-    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',     x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/setting_touch.lua b/parts/scenes/setting_touch.lua
index c2e2f2fa..087ec136 100644
--- a/parts/scenes/setting_touch.lua
+++ b/parts/scenes/setting_touch.lua
@@ -115,7 +115,7 @@ scene.widgetList={
         end},
     WIDGET.newSelector{name='snap', x=750,y=90,w=200,h=80,color='Y',list={1,10,20,40,60,80},disp=function()return snapUnit end,code=function(i)snapUnit=i end},
     WIDGET.newButton{name='option', x=530,y=190,w=200,h=80,font=60,fText=CHAR.icon.menu,code=function()SCN.go('setting_touchSwitch')end},
-    WIDGET.newButton{name='back',   x=750,y=190,w=200,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',   x=750,y=190,w=200,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
     WIDGET.newKey{name='save1',     x=475,y=290,w=90,h=70,code=_save1,font=45,fText=CHAR.icon.saveOne},
     WIDGET.newKey{name='load1',     x=585,y=290,w=90,h=70,code=_load1,font=45,fText=CHAR.icon.loadOne},
     WIDGET.newKey{name='save2',     x=695,y=290,w=90,h=70,code=_save2,font=45,fText=CHAR.icon.saveTwo},
diff --git a/parts/scenes/setting_touchSwitch.lua b/parts/scenes/setting_touchSwitch.lua
index fe9da965..d204315e 100644
--- a/parts/scenes/setting_touchSwitch.lua
+++ b/parts/scenes/setting_touchSwitch.lua
@@ -62,7 +62,7 @@ scene.widgetList={
     WIDGET.newSlider{name='tchW',  x=140,  y=860, w=1000,               font=35,disp=SETval('VKTchW'),code=function(i)SETTING.VKTchW=i SETTING.VKCurW=math.max(SETTING.VKCurW,i)end,hideF=_notTrack},
     WIDGET.newSlider{name='curW',  x=140,  y=930, w=1000,               font=35,disp=SETval('VKCurW'),code=function(i)SETTING.VKCurW=i SETTING.VKTchW=math.min(SETTING.VKTchW,i)end,hideF=_notTrack},
 
-    WIDGET.newButton{name='back',  x=1140, y=640, w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',  x=1140, y=640, w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/setting_video.lua b/parts/scenes/setting_video.lua
index 3b79b60e..028c4ba9 100644
--- a/parts/scenes/setting_video.lua
+++ b/parts/scenes/setting_video.lua
@@ -113,7 +113,7 @@ scene.widgetList={
         code=function(v)SETTING.fieldSatur=v;applyFieldSatur(SETTING.fieldSatur)end
         },
 
-    WIDGET.newButton{name='back',         x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',         x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/staff.lua b/parts/scenes/staff.lua
index e064500a..377f208e 100644
--- a/parts/scenes/staff.lua
+++ b/parts/scenes/staff.lua
@@ -95,7 +95,7 @@ function scene.draw()
 end
 
 scene.widgetList={
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene
diff --git a/parts/scenes/stat.lua b/parts/scenes/stat.lua
index ecdea798..b80795d9 100644
--- a/parts/scenes/stat.lua
+++ b/parts/scenes/stat.lua
@@ -131,7 +131,7 @@ scene.widgetList={
         end
     },
     WIDGET.newButton{name='save',x=820,y=640,w=250,h=80,font=25,code=goScene'savedata'},
-    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+    WIDGET.newButton{name='back',x=1140,y=640,w=170,h=80,font=60,sound='back',fText=CHAR.icon.back,code=backScene},
 }
 
 return scene