Complete the fire level and get killed on the water level.  Now on
        the high score table, enter \"BBBB\" for your name.  This will give
        you infinite continues.  Run through the game as normal until you
        get to the level selection page.  Now type in \"GO PLANET\".  Now,
        when the game starts hit 'F10' and 'RETURN' Together, and you
        should be taken back to the level selection page, where you can
        choose any level.