Various cheats
     During  gameplay,  press T to bring up the talk screen, and enter
any of the following

Cheat code:         Effect:
God                 Turns God mode on or off 
Health              Restores full health 
Armor               Restores full armor 
Poltergeist         Turns invisibility on or off 
Gimmegun _________  Type in the name of the weapon you wish 
                    your character to have
Ammo                Full ammo