Press L1, Square, R1, R1, R2, Square, L1, R1, R2 at the Story mode 'Game Select' screen. During gameplay enter the following codes
L1, Left, L1, Left, R1, Right, R1, Right.
While playing the game, press Up(6), Down,
While playing the game, press Up, Left, Down,
Left, Down, Up(2), Left.