X-Box :: Pariah Cheat Codes
EB Games multi-player levelAt the main menu, select the "Settings" option, then select the "Cheat Codes" option. Press White, Y, X, Black to unlock the EB Games multi-player level.
Gamestop multi-player level
At the main menu, select the "Settings" option, then select the "Cheat Codes" option. Press Left, L, X, Left to unlock the Gamestop multi-player level.
Search for more cheats at CheatSearcher
God Mode: press up left X left.
All Ammo: down up down Y.