By: 

   Release date: 



   The codes.

   Press the ESC key and select the password option. Now use
 LETSRIP! as a password. The phrase "Cheat Mode Is On" will
 appear to confirm correct code entry. Now you can use the
 following keys.

 A          Increase air.
 F          Full fire.
 G          Invincibility.
 H          Jason fire.
 J          Jason probe.
 R          Rapid fire.
 S          Increase shields.
 U          Fire upwards.