diff --git a/demos/old_sokoban.lua b/demos/old_sokoban.lua
deleted file mode 100644
index de97f3c..0000000
--- a/demos/old_sokoban.lua
+++ /dev/null
@@ -1,161 +0,0 @@
-FLOOR = 0
-GOAL = 1
-BOX = 2
-PLAYER = 4
-WALL = 7
-
-function init()
-    mode(2)
-    level=1
-    player={}
-    menu.init()
-end
-
--- ====================================================================================================
--- MENU (game state)
--- ====================================================================================================
-blink=0
-
-menu={
-    init = function()
-        update=menu.update
-    end,
-
-    update = function()
-        color(15,0) cls()
-        ink(1)  print("\x20\x20\x20\x87\x81\x87\x85\x85\x85\x87\x85\x87\x85\x87\x85\x87\x84\x20\x20\x20",0,2)
-        ink(9)  print("\x20\x20\x20\x83\x85\x85\x85\x8D\x81\x85\x85\x87\x84\x8D\x85\x85\x85\x20\x20\x20",0,3)
-        ink(11) print("\x20\x20\x20\x83\x81\x83\x81\x81\x81\x83\x81\x83\x81\x81\x81\x81\x81\x20\x20\x20",0,4)
-        ink(15*flr((blink%60)/30)) print("PRESS SPACE TO PLAY",1,9)
-        blink=blink+1
-
-        if btnp(KEY_SPACE) then
-            level=1
-            game.init()
-        end
-    end
-}
-
--- ====================================================================================================
--- GAME (game state)
--- ====================================================================================================
-game={
-    init = function()
-        update=game.update
-        level.load_from_string("####|# .#|#  ###|#*@  #|#  $ #|#  ###|####")
-    end,
-    
-    update = function()
-        border(0)
-        color(1,0)
-        cls()
-        level.draw()
-    
-        if btnp(KEY_UP) then level.try_move(0,-1)
-        elseif btnp(KEY_DOWN) then level.try_move(0,1)
-        elseif btnp(KEY_LEFT) then level.try_move(-1,0)
-        elseif btnp(KEY_RIGHT) then level.try_move(1,0)
-        end
-    end
-}
-
--- ====================================================================================================
--- LOADING (game state)
--- ====================================================================================================
-loading = {
-    init = function()
-        border(15)
-        update=loading.update
-        wait=120
-    end
-    
-    function inbetween_update()
-        color(15,0)
-        cls()
-        print("LEVEL "..level,6,6)
-        print("GOOD JOB!",4,8)
-        wait=wait-1
-        if wait==0 then
-            level=level+1
-            game_init()
-        end
-    end
-}
-
-function level_load_from_string(str)
-    map={}
-    local pos=0
-    local y,x=1,1
-    local maxx=0
-    map[y] = {}
-    while pos<#str do
-        local chr = ascii(str,pos)
-        if chr == 35 then map[y][x] = WALL end
-        if chr == 64 then player.x,player.y=x,y map[y][x] = FLOOR end
-        if chr == 43 then player.x,player.y=x,y map[y][x] = GOAL end
-        if chr == 36 then map[y][x] = BOX end
-        if chr == 42 then map[y][x] = GOAL+BOX end
-        if chr == 46 then map[y][x] = GOAL end
-        if chr == 32 then map[y][x] = FLOOR end
-        if chr == 124 then
-            y=y+1
-            map[y] = {}
-            if maxx < x then maxx=x end
-            x=0
-        end
-        pos=pos+1
-        x=x+1
-    end
-    ox = flr((20-maxx)/2)
-    oy = flr((15-y)/2)
-end
-
-function level_draw()
-    for y=1,#map do
-        for x=1,#map[y] do
-            if map[y][x] == WALL then color(4,15) print("\127",ox+x-1,oy+y-1)
-            elseif map[y][x] == BOX then color(0,6) print("\016",ox+x-1,oy+y-1)
-            elseif map[y][x] == BOX+GOAL then color(0,4) print("\016",ox+x-1,oy+y-1)
-            elseif map[y][x] == GOAL then color(4,0) print("\144",ox+x-1,oy+y-1)
-            end
-        end
-    end
-    color(15,0) print("\248",ox+player.x-1,oy+player.y-1)
-end
-
-function try_move(x,y)
-    if is_empty(x,y) then
-        move_player(x,y)
-    elseif is_box(x,y) and is_empty(x*2,y*2) then
-        move_box(x,y)
-    end
-end
-
-function is_empty(x,y)
-    return map[player.y+y][player.x+x] < 2
-end
-
-function is_box(x,y)
-    return map[player.y+y][player.x+x] < 4
-end
-
-function move_player(x,y)
-    player.x=player.x+x
-    player.y=player.y+y 
-end
-
-function move_box(x,y)
-    map[player.y+y*2][player.x+x*2] = map[player.y+y*2][player.x+x*2] + BOX
-    map[player.y+y][player.x+x] = map[player.y+y][player.x+x] - BOX
-    move_player(x,y)
-    check_finished()
-end
-
-function check_finished()
-    for y=1,#map do
-        for x=1,#map[y] do
-            if map[y][x] == GOAL then return end
-        end
-    end
-    inbetween_init()
-end
diff --git a/lua.cpp b/lua.cpp
index a86973a..c469200 100644
--- a/lua.cpp
+++ b/lua.cpp
@@ -431,15 +431,14 @@ const char boot[] =
         "ink(1) print('G A M E',8,16)"
         "ink(4) print('S Y S T E M',20,16)"
         "ink(7) print('mini',9,8)"
-        "ink(8) print('v0.7.4',34,29)"
-        "w=0 "
+        "ink(8) print('v0.7.5',34,29)"
+        "w=time() "
     "end "
     "function update()"
-        "w=w+1 "
-        "if w>90 then "
+        "if time()>w+2000 then "
             "cls()"
             "load()"
-        "end"
+        "end "
     "end";
 
 void lua_init(const char* filename, const bool start_playing) {