We're not pulling your teat...
Be the Mechanical Cow:
Select "Options", then "Load", then "choose password." Enter the password: LLLLLLLLLLLLLL.
Now press X and start a race. You're a metal cow!!! (dreams DO come true...)
Enter the password screen and type in VVVVVVVVVVVVVV. Now check out the vehicle select screen....
Play all the Movies:
At the Options screen in the Main Menu, press Circle, Square, Triangle, Left, Right, Up, Square, Right
Thanks to Revolution readers Bovinus, Chris Pert, and Fabian Flechas!