Enter the codes by first going to the save game screen. Select slot number 10, type in the cheats and press enter. You can type in all ocodes together (one after the other):-

noaicars - no AI racers in a LAN game

birdview - top view

aardvark - all collisions disabled

stickier - 3D collisions disabled

sraclla - able to access all cars (including hidden ones)

creditz - show credits and funny pictures

itslate - no special effects (3D effects only)

levellia - unlocks all tracks

spazzy - drugged driving

miktrout - enabled big cars

mplamer - enabled small cars

bamdw - black and white screen mode

gonzon - fast foward mode on

gonzon - fast foward mode off

nitroxxx - nitro boosy by pressing x

bobcred - bonus end credits

master - view end credits