-level 3: small level change at the end to prevent skipping the moving brick
-level 4: fixed a bug where a hatch wouldn't open in the second playthrough
-level 5: a lever variable didn't reset in the second playthrough
-controls screen now also shows jump for joystick button
-lower volume for game over and end screen music
-top of exit doors now blocked with invisible tiles
-player death animation now shows moving feet