To access the animal teams (bees, snails, etc.), hold L1 + R2 + Start + Select while the game is loading.

For a greater challenge, go to the Options menu and enter these codes.

Challenge 1:
Press Square, Circle, Square, Triangle, Circle, Triangle, Triangle, Circle, Square, Square, Square, Triangle, X, Square.

Challenge 2:
Press Square, Circle, Square, Triangle, Circle, Triangle, X, Square, X, Triangle, Triangle, X, Circle, Circle.

At the begining of the race, before you cross the start line turn around and shoot your opponents until you're the only one left. You can now come in first every time.

For access to all eight tracks, hold L1 + R1 + Select at the main menu. With these buttons held, press Square, Circle, Triangle, Circle, Square.

This trick will make Wipeout XL a lot easier. After a race is loaded and you're zooming to your car, push the open button on your PSX. The code was written in a way that the error generated when the game is searching for the CD slows the overall system down. Don't forget to close the cover at the end of the race.

For unlimited energy, pause the game and hold L1 + R1 + Select. With these buttons held, press Triangle, X, Square, Circle, Triangle, X, Square, Circle.

Slow down and enjoy the scenery with this code. For unlimited time, pause the game and hold L1 + R1 + Select. With these buttons held, press Triangle, Square, Circle, X, Triangle, Square, Circle, X.

For unlimited firepower, pause the game and hold L1 + R1 + Select. With these buttons held, press X, X, Square, Square, Circle, Circle, Triangle.

Lay down the law (and the bullets!) with this code. To refit your vehicle with a machine gun, pause the game and hold L1 + R1 + Select. With these buttons held, press Square, Circle, X, Square, Circle, X, Triangle.

To access the piranha team, hold L1 + R1 + Select at the main menu. With these buttons held, press X, X, X, X, Circle, Triangle, Square.