Downforce Cheats...
Beginner trophy
At the main menu, press Right(2), L1, Triangle(2), R1, Right.
Crash arena
At the main menu, press Left, Right(2), Square, Down, Triangle(2), Square.
Crash arena in two-player mode
At the main menu, press Right, Left(2), Circle, Up, Triangle(2), Square.
Expert championship
At the main menu, press Down, Circle, Up, Down, Circle(2), R1, L1.
Expert CPU
At the main menu, press Triangle, Right, Left, Square, Up, Circle, Down, Right.
Expert trophy
At the main menu, press Right(2), Circle, Left, L1, Circle, R1, Circle.
Intermediate championship
At the main menu, press Down, Square, Up, Square, Right(2), Left.
Intermediate trophy
At the main menu, press Right(2), Square, Left, L1, R1, Square(2).
Invincibility
At the main menu, press L1, Triangle, R1, Triangle, Down(2), Circle.