Destruction Derby Cheats for PlayStation
To access this feature select 2-Player mode and enter RIDGE as the player 1 name and RACER as the player 2 name.
Enter the following codes at the Name Entry screen to unlock the corresponding effect.
Unlock Cow Mode:
Choose Championship, enter in Wreckin', and make your name REFLECT!, Then go back to the main menu, then go choose Wreckin', and now choose a track and notice there should be a new one called, Ruined Monastery.
To be entered as a character name in campionship mode.