Various cheats
     Enter  the  codes  by first going to the Save Game screen. Select
slot  number 10, type in the cheat codes and press Enter. You can type
in all the codes together (one after another).

Cheat code:             Effect:
NOAICARS                No AI racers in a LAN game
BIRDVIEW                Top view
AARDVARK                All collisions disable
STICKIER                3d collisions disable
SRACLLA                 Able to access all cars (including hidden ones) 
CREDITZ                 Show credits and funny pics
ITSLATE                 No special effects (3dfx version only)
LEVELLLA                Unlock all tracks
SPAZZY                  Drugged driving
MIKTROUT                Enable big cars
MPALMER                 Enable small cars
BANDW                   Black and white screen mode
GONZON                  Fast forward mode
GONZOFF                 Fast forward mode off
NITROXXX                Nitro boosy by pressing X
BOBCRED                 Bonus end credits
MASTER                  View end credits