All cars
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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
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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.