To view the credits, enter the password "screwyouguys".
For unlimited ammo, enter the password FATTERKNACKER.
Pen and Ink Mode
For Turok's famous "pen and ink" mode, enter the password PLANEARIUM.
To unlock all codes at once, enter the code BOBBYBIRD at the Cheats menu.
To choose your starting level enter the password THEEARTHMOVED. After activating this code, start a new game and pause it. You may now enter the Level Select menu.
Big Head Mode
For big head mode enter the password MEGANOGGIN at the Cheat menu.
For god mode enter the password ASSMAN.
For all weapons, enter the password FATKNACKER.
All Characters in Multiplayer Mode
To enable all characters in multiplayer mode, enter the password OMGTKKYB. That, as any South Park fan will know, stands for "Oh My God, They Killed Kenny! You Bastards."
To access these characters in multiplayer mode, enter one of the passwords below.
veggieheaven = Skinny
cheatingisbad = Mr. Mackey
elvislives = Bar Brady
outrage = Big Gay Al
hawking = Ned
slapupmeal = Starvin Marvin
phaert = Phillip
raft = Terrance
dorothysfriend = Mr. Garrison
lovemachine = Chef
checkataco = Wendy
fishnchips = Pip
kickme = Ike
allwoman = Mrs. Cartman
goodscience = Mephisto
staringfrog = Jimbo
majestic = Alien