SD cars:
Hold X and press Right, Right, Up, Up, Down, Left, Down, Left, Right, Up, Down, Left, Right, Up, Right when the main menu appears.
Monochrome graphics:
Hold Select and press Right, Right, Right, Right, Up, Up, Up, Up, Down, Right, Up, Down, Right, Up, Left when the main menu appears.
Big tracks:
Hold X + Select and press Right, Down, Left, Up, Right, Down, Left, Up, Down, Right, Up, Left, Down, Right, Up when the main menu appears.
Wider turns:
Hold Circle and press Down, Down, Left, Down, Down, Down, Left, Down, Up, Down, Right, Left, Right, Left, Up when the main menu appears.
Decrease gravity:
Hold Circle + Start press Right, Up, Down, Left, Right, Up, Down, Left, Right, Up, Down, Left, Right, Up, Left when the main menu appears
Transparent car:
Hold Start and press Up, Up, Right, Left, Down, Down, Left, Up, Right, Right, Up, Down, Left, Left, Down when the main menu appears.
