Southpark

Cheatcodes:
Choose "ENTER CHEAT" from the main menu.
Press left or right on the D-Pad, joystick, or C-Left & C-Right buttons to change the letter on the "Cheesy Poofs secret decoder". Press START or A to enter a letter. Press B to enter the cheat.
If a code was entered correctly it will show which cheat was activated on the screen.

BOBBYBIRD - Master cheat activated - all Fusk enabled
SCREWYOUGUYS - Show credits activated
OMGTKKYB - All characters activated
SLAPUPMEAL - Starvin Marvin activated
PHAERT - Phillip activated
RAFT - Terrance activated
DOROTHYSFRIEND - Mr. Garrison activated
CHEATINGISBAD - Mr. Mackey activated
LOVEMACHINE - Chef activated
CHECKATACO - Wendy activated
FISHNCHIPS - Pip activated
KICKME - Ike activated
ALLWOMAN - Mrs. Cartman activated
GOODSCIENCE - Mephisto activated
STARINGFROG - Jimbo activated
HAWKING - Ned activated
OUTRAGE - Big Gay Al activated
ELVISLIVES - Barbrady activated
MAJESTIC - Alien activated
THEEARTHMOVED - Level select activated
VEGGIEHEAVEN - Skinny activated
MEGANOGGIN - Big heads activated
FATTERKNACKER - Unlimited ammo activated
FATKNACKER - All weapons activated
ASSMAN - Invincibility activated
PLANEARIUM - Pen & Ink activated Access All Multi-Player Characters:
To gain access to all the characters for Multi-Player type in OMGTKKYB as a code.