Unlockables
Unlock all of the tracks immediately with the code "OPENROADS." Obtain all of the cars by entering "SHOEBOXES." Get the special green jello car, which wobbles as it drives, with the cheat "BLANCMANGE." Drive as Nicky Grist after you input the code "BACKSEAT."
Special Effects
Race at night with the password "NIGHTRIDER." Speed up the frame rate with the code "SILKYSMOOTH." Make tracks foggy by using the code "PEASOUPER." Ensure high jumps by activating low gravity with the code "MOONWALK." Race the tracks in reverse by entering "SKCART." Make all of the cars small with the code "DIDDYCARS" and give all the voice actors in the game squeaky voices with the cheat "HELIUMNECK."
Controls
Increase your acceleration abilities by entering the code "BUTTONBASH." Change to a four-wheel-drive transmission with the password "TROLLEY." Make your steering looser with the code "MAGFLOAT." Enter turbo mode, which features much faster vehicles, by using the cheat "MORE00MPH." Give your car the ability to jump further by inputting "KITCAR."
Bouncy Cars
You can make all of the racers bouncy by using a cheat during a race. Pause the game and hold down the "L2" and "R2" buttons. Then, press "Circle," "Square," "Square," "Left," "Up" and "Right." When you unpause the game, the effect will begin. The cars will bounce as they move down the track (and off of each other). This fun effect doesn't give you any real advantage, but it's an interesting sight to behold.