Unlock All Tracks
Enter HELLOCLEVELAND at the "Create New Driver Profile" screen to unlock all tracks.

Unlock All Cars
Enter ONECAREFULOWNER at the "Create New Driver Profile" screen to unlock all cars.

Car Codes
If you only want to unlock select cars, you can enter the following vehicle codes at the "Create New Driver Profile" screen:

Car - Code:

Lancer Road Car - OFFROAD
Mini Cooper - JOBINITALY
Sierra Cosworth - JIMMYSCAR
Ford Puma - COOLESTCAR

Cheat mode
Enter the following codes at the Cheat Options screen:

Code - Result:

RORRIMSKCART - Mirrored tracks
NEURALNIGHTMAR - Smarter CPU AI
GREATBALLSOF - Shoot fireballs
RUBBERTREES - Bouncy collisions
FRIDAYSCHILD - No damage
EASYROLLER - Monster truck wheels
MOONLANDER - Low gravity
ROCKETFUEL - Turbo mode
PRUNEJUICE - Faster game speed
HELLO RAZU AND FLEA - Cat silhouette