Press ESC during game play to return to the main menu, then slowly type franchiseme to enable cheat mode. The word "Hallelujah" will be heard to confirm correct code entry. Select "Resume Game", then activate the following cheats by pressing the corresponding keys:
CHEAT FUNCTION - CHEAT CODE Toggle invincibility - E Toggle life - R Shield - Y Weapon - I Super jump - U Toggle speed - T Ammunition - I Damage yourself - W
Note: These codes can also be used in the demo version of the game. However, no sound is there to confirm correct code entry. You also must highlight "Game" instead of "Resume Game" to activate the codes.