Unlock all circuit tracks:
At the main menu, press Down, R, R, R, Black, Black, Black, X.
Unlock all drag tracks:
At the main menu, press Right, X, Left, R, X, L, White, Black.
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.
Level 1 Performance Parts:
At the main menu, press Black, Black, R, R, Left, Right, Left, Right.
Level 2 Performance Parts:
At the main menu, press R, R, R, R, Black, Black, Left, Right.
Level 2 Visual Parts:
At the main menu, press Down, Left, Up, Down, R, Black, Black, X.
Unlock Acura Integra:
At the main menu, press Black, Black, R, Black, White, L, Down, Up.
Unlock Acura RSX:
At the main menu, press R, Black, Down, Left, Up, Right, Left, Right.
Unlock Ford Focus:
At the main menu, press Left, Right, Up, R, Black, R, Black, Up.
Unlock Honda S2000:
At the main menu, press Up, Up, Down, Down, Up, Left, X, Black.
Unlock Lost Prophets car:
At the main menu, press Up, Up, Up, Right, Down, Down, Up, Right.
Unlock Mitsubishi Lancer:
At the main menu, press Left, Left, Left, R, R, Black, Black, White.
Unlock Mystikal car:
At the main menu, press Up, Right, Up, Up, Down, Right, Up, Right.
Unlock Nismo car:
At the main menu, press Up, Down, Up, Left, Down, Down, Up, Right.
Unlock Nissan 240SX:
At the main menu, press Up, Down, Left, Right, X, R, White, R.
Unlock Nissan 350Z:
At the main menu, press Right, Right, Down, Up, X, L, R, White.
Unlock Nissan Sentra:
At the main menu, press Black, Black, Black, White, White, Black, Black, Up.
Unlock Nissan Skyline:
At the main menu, press Down, Down, L, White, L, White, L, Down.
Unlock Petey Pablo car:
At the main menu, press Up, Up, Up, Up, Down, Up, Up, Right.
Unlock Rob Zombie car:
At the main menu, press Up, Left, Up, Up, Down, Left, Up, Right.
Unlock Subaru Impreza:
At the main menu, press Up, Down, Down, Up, White, Up, White, Down.
Unlock Toyota Supra:
At the main menu, press R, R, Black, R, Black, R, White, L.
Unlock all drift tracks:
At the main menu, press Left, Left, Left, Left, Right, Black, R, White.
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Need for Speed: Underground Cheats at CheatingDome.com.