While playing a game, quickly press one of the following button sequences (shown under the default controller configuration) to make the corresponding power-up appear next to your character. Note: Each power-up may only be enabled five times per level.
Press Down, Left, Square, Circle.
Press Up, Triangle, Up, Triangle.
Press Right(2), Square, X.
Press Down(2), Up, Circle.
Press Up, Circle, Down, Right, Square.
Press Left(2), Right(2), Triangle.
Press Down, Right, Down, Right, Circle.