points
multi workers out at same frame
hiscore saving
stop sound on level begin/end
fix font special chars. two workers on a lift
wrapping players and workers around world boundaries
add end screen, named levels
add intro screen
auto move from intro screen if no key press
mute flag
fix fast mode ladder detection
Fix hit holes in fast mode
boot loader
fix stairs bug from fast-mode fix
intro from hiscore screen
fast mode with both keys
add equator to tiled map
portal change ui