Roadkill
Cheats:
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Pause the game and enter the codes at the Map Screen.
Respawn power-ups:
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Press Triangle, X, X, Triangle, Square, Circle, Circle, Square, X, Square,
Circle, Triangel.
All vehicles:
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Press Up, Down, Up, Down, Triangle, X, Triangle, X, Square, Circle, Circle, Square.
Infinite Ammo:
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Press Triangle, Square, Square, Circle, Triangle, Square, Square, Circle.
More money:
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Press Triangle, Circle, Triangle, Circle, Square, X, Square, X, Down, Up.
Restore health:
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Press Square, Circle, Square, Circle, Square, Circle, Square, Circle.