The graphics do look good though.
Please tell me how You did health bar and camera movement!
If you'll look at the code,
zoomscreen 9x7
in the prelude makes the screen center on the player with a 9x7 grid.
And the following lines keep the overlay where it should be:
( Move overlay with player )
[ > Player ] [ Heart ] -> [ > Player ] [ > Heart ]
[ > Player ] [ Dim ] -> [ > Player ] [ > Dim ]
[ > Player ] [ Dimmer ] -> [ > Player ] [ > Dimmer ]
Good game! Really good, but where is that semi-random map?