At the Race Qualify screen, hold Select then enter the codes.
Buggy Mode | Right, Up, Triangle, Left, Up, Square, Triangle |
Bike Mode | Down, Up, Circle, Triangle, Right, Up, Square, Triangle |
Lava Mode | Square, Circle, Up, Right, Right, Circle, X |
Gibberish Mode | Left, Circle, Up, Down, Down, Right, Circle, Square, Square |
Bonus Track | Left, Circle, Circle, Triangle, Triangle, Circle, Up, Right |
German Mode | Down, Up, Left, Left, Square, Circle, X |
Spanish Mode | Triangle, Circle, Right, Circle, Triangle, Circle, Right, Circle |