Daisy
At the main menu, go down to Options. In Options, choose Load and press X. Now, enter the Password Screen, enter the code: LLLLLLLLLLLLLL, then press Start. Now start a new race and yo will be playing as Daisy the Cow!
Mystery Car
For a mystery car, enter the password VVVVVVVVVVVVVV, then start the game. To drive this car, look on the car selection screen for a vehicle with no name.
Password
For access to level 2 with the super car and a bonus, enter the password "4xvhbbbcdbcdbg".
Play All the Movies
At the main menu, highlight OPTIONS and press Circle, Square, Triangle, Left, Right, Up, Square, Right.
Time/Date
On any menu screen. to show the compilation time/date press: up, left, right, triangle, circle, square, left, right, square, circle.
Fly as a Cow
On the ship select screen press: Up, left, down, left, down, right, left, down, right, square, X, circle.