Bonus Tracks and Challages
Hold L1 and R1 for 1 sec at the main screen and then press Left, Right, Right, Right, Right, Right, Right, Right, Left, Left, Left, Left, Left, Left, Left, Left, Left, Left, Left, Left, Left, Left, Left. You'll hear a crash sound to confirm proper entry. (Note that you hit right 7 times and left 15 times).
Unlock Double Decker Buses
Hold L1 and R1 for 1 sec at the main screen and then press Left(3), Right(15), Left,(3), Right(11), Left(14), Right(5), Left(25)... Note that numbers in the ( ) are how many times to press that direction.
