DR. PLUMMET'S HOUSE OF FLUX:

        During play, press 'HELP' to activate the cheat mode, and then use
        any of the following:

                 'F1'____________________________Skip levels.
                 'F2'__________________________Invincibility.
                 'F3'_____________________Restock everything.
                 'F10'_______Resets fuel and number of ships.