We've had a mixed response as to whether or not cheat codes for Need for Speed Underground actually work.

Below are the ones that we have, hopefully they will work for you.

I also suggest that you take a look at our user submitted cheats and hints for this game for some great suggestions for Need for Speed Underground from our readers.

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Cheat Codes
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Unlock all drag tracks:
At the main menu, press Left, X, Right, R, X, L, White, Black.

Unlock all drift tracks:
At the main menu, press Right, Right, Right, Right, Left, Black, R, White.

Unlock all sprint tracks:
At the main menu, press Up, Black, Black, Black, R, Down, Down, Down.

Drift physics:
At the main menu, press R, Up, Up, Up, Down, Down, Down, L.

Unlimited turbo:
At the main menu, press A, B, Y, Y, A, A, B.

Unlock all circuit tracks:
At the main menu, press Down, R, R, R, Black, Black, Black, X.