Reversed tracks:
Win the motocross championship under simulation or arcade mode.

Bonus Track:
At the main menu, press R1, R2, Up, Left, Triangle.

Faster Bikes:
At the main menu, press Up(3), Right, Left, Triangle, X.

Higher Jumps:
At the main menu, press Left(2), Up(2), Right(2), Down(2), Square, Triangle, X.

Other Racers Limited to 50 km/h:
At the main menu, press Circle, Square, Right, Left, L1, R1, X.

Ultimate Championship:
At the main menu, press R2, L2, Up(2), Square(2), Down(2), R1, Square, Triangle, Square, Up, Down,
R, Triangle, R2, L1, Square, R2, L2(2), Up, Down, Up, Square, Circle, Triangle.

Mirror Tracks:
Win the Gold Trophy in the Super Bike Championship. Then, mirror mode will be available in practice
and single races.