During play enter any of the following sequences (Press the keys
        do not hold them):

        Press 'F1', 'UP CURSOR', 'DOWN CURSOR', 'DEL', and type "ILMVS" for 
        infinite lives.

        Press 'F2', 'TAB', 'SPACE', 'F6', and type "RMADL" for infinite
        bombs.
        
        Press 'F3', 'W', 'O', 'M', 'CTRL', 'X', '4', 'Y', and 'LEFT ALT'
        to enable level skip.  Now press 'ESC' to skip levels.