To enter these codes, go to the OPTIONS menu, then select SAVE GAME and type one of these codes in slot 10. You'll hear a horn if you entered them correctly.

Code               Effect
NOAICARS           No computer-controlled cars in multi-player
STICKIER           No 3d collisions
AARDVARK           All collisions turned off
ITSLATE            No special effects (3dfx)
CREDITZ            Show credits
LEVELLLA           Unlock all secret tracks
SPAZZY             Spinning camera
SRACLLA            Unlock all cars
BANDW              Black and white
COLOUR             Back to color
MIKTROUT           Giant cars
MPALMER            Tiny cars
BIRDVIEW           Birds-eye view
NITROXXX           Nitro with horn
GONZON             Fast forward mode on
GONZOFF            Fast forward mode off