Driving
All tracks
At the main menu, press Up(2), Left, Down, Left, Right(2), Up to unlock all tracks.
All cars
At the main menu, press Up, Down, Right(2), Left, Up(2), Down to unlock all cars.
Story mode
At the main menu, press Down, Left, Up, Right(2), Up, Down, Left to unlock story mode.
Arcade championships
At the main menu, press Right, Left, Up, Right, Down(2), Left(2) to unlock arcade championships.
Multi-player championships
At the main menu, press Left, Down, Left, Up, Right, Left, Down, Right to unlock multi-player championships.