To enter a cheat code, first go to the Save Game screen. Select Slot
            10, type in the cheat code and press [ENTER]. You can use multiple
            cheat codes together. IT IS VERY IMPORTANT THAT EVERYONE IN THE LAN
            GAME USES THE SAME CHEAT CODES. IF PEOPLE IN THE LAN GAMES HAVE
            DIFFERENT CHEAT CODES ON THE GAME MAY CRASH !!!

            Cheat codes

            NOAICARS = No AI racers in the LAN game
            STICKIER = No 3D collisions (you can still spin each other but your
            cars will not leave the ground)
            AARDVARK = All collisions turned off
            ITSLATE = No special effects (3Dfx version only)
            CREDITZ = Show Credits with cool pics
            SRACLLA = Unlock All Cars
            LEVELLLA = Unlock All Tracks
            SPAZZY = Test Drive on Acid
            BANDW = Black & White Mode
            MIKTROUT = BIG Cars
            MPALMER = Mini Cars
            GONZON = Fast Forward Mode
            GONZOFF = FF Mode Off
            BIRDVIEW = View From Above
            NITROXXX = nitro boost with horn button
            BOBCRED = extra credits
            COLOUR = changes screen back to color when in b and W mode

            These codes also work, but not quite sure the effect (possibly multiplayer only?):

            ASTIDERC
            TSTIDERC
            DSTIDERC
            MASTER