All garage cars pimped:
Up, Down, Left, Right, B, X, A, Y, Up, Down, Left then right
Always first place in street races, and great success in acquires and retributions:
Up, Down, Left, Right, A, Left, B then up

Disable Police:
Up, Down, Left, Right, A, X, Right, Y then left

Get 00:
Up, Down, Left, Right, B, Left, A then Up

Traffic at full speed:
Up, Down, Left, Right, X, Right, Circle then left

Unlimited nitro:
Up, Down, Left, Right, X, Up, Down, B then Up