During play press 'F9' five times to activate the cheat mode.  Now
        use the following keys:

            'F1'_______Add to power up.     'F5'_________Invincibility.
            'F2'_______Add to power up.     'F6'______Special weapon 1.
            'F3'____________Add energy.     'F7'______Special weapon 2.
            'F4'___________Fill energy.     'F8'______Special Weapon 3.
                            'DEL'__________________Die!