Need For Speed Underground Codes -

Completion bonus:
Successfully complete Go Underground mode to unlock all cars and upgrades.

Recommended cars:
The first car that you should buy is the Subaru Impreza. The second best car to race would be the Toyota Celica. With the Celica, you should be able to be number one in drift, circuit, and drag racing.

Fast getaway:
When racing in Underground mode or against a friend, never use the emergency brake ( ). Using it will almost make you come to a complete stop, allowing your opponent to pass you. The best way is to just let off the gas for a few seconds before your next turn.