Cheat menu
At the main menu, highlight the "Options" selection, then hold L + R + Z + C-Up + C-Right to display a "Cheats" selection at the bottom of the screen. Choose the "Cheats" selection to enter the cheat menu:

All cars
Highlight the "All Cars" option on the cheat menu, then press C-Left(3), C-Up(3), C-Right(3), C-Down(3). Hold L + R + C-Up + C-Left + C-Down + C-Right and press Z.

All parts
Highlight the "All Parts" option on the cheat menu, then hold L + R and press Z. Release the buttons, then press C-Down, C-Up, C-Left, C-Right. Hold L + R and press Z.

Invincibility
Press C-Right, L, R(2), L. Then, hold C-Left + C-Down and press Z.

All parts
Hold L + R and press Z. Release the buttons, then press C-Down, C-Up, C-Left, C-Right. Then, hold L + R and press Z.

Intermediate circuit
Finish in first, second or third place on the beginner circuit to unlock The Mission track and the intermediate circuit.

Extreme circuit
Finish in first, second or third place on the intermediate circuit to unlock The Presidio track and the extreme circuit.

Venom car
Collect all silver coins in stunt mode to unlock the Venom car.

Crusher car
Collect sixteen gold coins in stunt mode to unlock the Crusher car.

Euro LX car
Collect 24 gold coins in stunt mode to unlock the Euro LX car.

GX-2 car
Collect half of the gold coins in stunt mode to unlock the GX-2 car.

The Disco track
Get 100,000 points in stunt mode to unlock The Disco track.

The Oasis track
Get 250,000 points in stunt mode to unlock The Oasis track.

The Warehouse track
Get 500,000 points in stunt mode to unlock The Warehouse track.

The Obstacle Course
Get 1,000,000 points in stunt mode to unlock The Obstacle Course.

Downtown battle arena
Get 100 kills in battle mode to unlock the Downtown battle arena.

Plaza battle arena
Get 250 kills in battle mode to the Plaza battle arena.

Roadkill battle arena
Get 500 kills in battle mode to the Roadkill battle arena.