Cheat mode: Reduce your ship's speed to the minimum setting, press
[F1] to fix the gun sights, and press [Backspace]
to pause game play. Type js arg s and press [Enter]
two times to enable cheat mode. Note: In other versions of the
game, type js arg, press [Backspace], press S,
then press [Backspace] followed by [Enter]. In addition
to the default invincibility and unlimited fuel, press one of
the following keys to activate the corresponding cheat function.
