http://www.netrover.com/~timt/cheats/p/putty.html (Amiga Plus Extra No. 5/97, 05/1997)On the high score screen after the games is over (you don't need a high score), type "HEADLIKEAHOLE" and press the 'ENTER' key on the keypad. Use 'F1-F10' to skip levels. This also gives you infinite lives. Hold 'SHIFT' or 'CTRL' and press the function keys to access the other levels.