All cars:
Press Up, Down, Right(2), Left, Up(2), Down at the main menu. The sound of an engine will confirm correct code entry.

All tracks:
Press Up(2), Left, Down, Left, Right(2), Up at the main menu. The sound of an engine will confirm correct code entry.

Story mode:
Press Down, Left, Up, Right(2), Up, Down, Left at the main menu. The sound of an engine will confirm correct code entry.

Arcade championships:
Press Right, Left, Up, Right, Down(2), Left(2) at the main menu. The sound of an engine will confirm correct code entry.

Multi-player championships:
Press Left, Down, Left, Up, Right, Left, Down, Right at the main menu. The sound of an engine will confirm correct code entry.