Roadkill

Pause the game and enter the codes at the Map Screen:

Respawn power-ups:
Triangle, X (2), Triangle, Square, Circle (2), Square,
X, Square, Circle, Triangel.

All vehicles:
Up, Down, Up, Down, Triangle, X, Triangle, X, Square, Circle, Circle, Square.

Infinite Ammo:
Triangle, Square, Square, Circle, Triangle, Square, Square, Circle.

More money:
Triangle, Circle, Triangle, Circle, Square, X, Square, X, Down, Up.

Restore health:
Square, Circle, Square, Circle, Square, Circle, Square, Circle.

 