Weapon power-up: Pause game play, then hold L2 and quickly press Up, Down, Left, Right, Triangle, X, Square. Release L2, then immediately press Start to resume game play.
Level skip: Pause game play, then hold L2 and quickly press Up, Down, Left, Right, Triangle, X(2), Triangle, Right, Left, Down, Up. Release L2, then immediately press Start to resume game play.
