YO! JOE:

        During play, type "WELTRAUMKAKALAKEN" for all the weapons and to
        activate the following keys:

        ']'_________________________________________________Add lives.
        '/'____________________________________________Subtract lives.
        'Y'___________________________________________Advances levels.
        'SPACE'_________Transports you to the end of the flying level.
        'S'_____________Press repeatedly while paused for slow motion.