If you receive a medal for a mission, you also will receive a skeleton key which opens a small box which contains a new skin for multi-player mode. The Japanese can only be killed with a headshot when this cheat is active. Select the "Bonus" option to enable/disable this cheat. Achilles head modeĮnter " CARDINAL" at the password screen at the options menu. All that you will see is their guns and helmets. Invisible soldiersĮnter " PARROT" at the password screen at the options menu. Characters will have various objects on their heads. Men with hatsĮnter " DOTTYBACK" at the password screen at the options menu. Rubber grenade modeĮnter " BETTA" at the password screen at the options menu. Silver bullet mode allows enemies to be killed with one shot. Silver bulletĮnter " BATFISH" at the password screen at the options menu. All bullets that are fired at you will be ineffective and will not damage you. Bullet shieldĮnter " WRASSE" at the password screen at the options menu. Infinite ammunitionĮnter " JAWFISH" at the password screen at the options menu. ImmortalityĮnter " BANNER" at the password screen at the options menu.
All replay itemsĮnter " BOXFISH" at the password screen at the options menu.
Enter " TUSKFISH" at the password screen at the options menu to unlock all missions.