diff --git a/main.lua b/main.lua
index bb21a7bf..a554eb80 100644
--- a/main.lua
+++ b/main.lua
@@ -143,8 +143,8 @@ Z.setOnFnKeys({
     function()
         if GAME.playing and not GAME.net then
             for _=1,8 do
-                local P=PLY_ALIVE[math.random(#PLY_ALIVE)]
-                if P and P~=PLAYERS[1]then
+                if #PLY_ALIVE>1 then
+                    local P=PLY_ALIVE[math.random(2,#PLY_ALIVE)]
                     P.lastRecv=PLAYERS[1]
                     P:lose()
                 end
@@ -153,7 +153,7 @@ Z.setOnFnKeys({
     end,
     function()print(WIDGET.getSelected()or"no widget selected")end,
     function()for k,v in next,_G do print(k,v)end end,
-    function()if love["_openConsole"]then love["_openConsole"]()end end,
+    function()if love['_openConsole']then love['_openConsole']()end end,
 })
 do--Z.setOnFocus
     local function task_autoSoundOff()
@@ -222,7 +222,7 @@ if missionData then
     DATA.pasteMission(missionData)
 end
 local customData=FILE.load('conf/customEnv')
-if customData and customData.version==VERSION.code then
+if customData and customData['version']==VERSION.code then
     TABLE.complete(customData,CUSTOMENV)
 end
 TABLE.complete(require"parts.customEnv0",CUSTOMENV)
diff --git a/parts/scenes/app_2048.lua b/parts/scenes/app_2048.lua
index 6973eb57..114327de 100644
--- a/parts/scenes/app_2048.lua
+++ b/parts/scenes/app_2048.lua
@@ -261,8 +261,8 @@ local moveFunc={
     right=moveRight,
 }
 local arrows={
-    up="↑",down="↓",left="←",right="→",
-    ["↑"]="up",["↓"]="down",["←"]="left",["→"]="right",
+    up='↑',down='↓',left='←',right='→',
+    ['↑']='up',['↓']='down',['←']='left',['→']='right',
 }
 local function setFocus(n)
     if state~=2 then
diff --git a/parts/scenes/custom_field.lua b/parts/scenes/custom_field.lua
index 60c594ab..f480db26 100644
--- a/parts/scenes/custom_field.lua
+++ b/parts/scenes/custom_field.lua
@@ -23,7 +23,7 @@ local function isEmpty(L)
     return true
 end
 local penKey={
-    ["1"]=1,["2"]=2,["3"]=3,["4"]=4,["5"]=5,["6"]=6,["7"]=7,["8"]=8,
+    ['1']=1,['2']=2,['3']=3,['4']=4,['5']=5,['6']=6,['7']=7,['8']=8,
     q=9,w=10,e=11,r=12,t=13,y=14,u=15,i=16,
     a=17,s=18,d=19,f=20,g=21,h=22,j=23,k=24,
     z=0,x=-1,