Cheat mode:
Press [F1] during game play to display the help screen. Then, enter one of the following codes to activate the corresponding cheat function:
Effect Code
Unlimited ammunition [Ctrl] + M
Invisibility [Ctrl] + X
Invincibility [Ctrl] + I
Mission skip [Ctrl] + H
Mission select:
Type hossana at the mission selection screen to unlock all missions.
