Level select: Press L1, R1, L2, R2, Triangle,
X, Circle, Square(2), Circle, X,
Triangle at the "Press Start" screen. Return
to the "Start Mission" screen to select any level in
the game.
All ships,
weapons, and upgrades: Press L1, R1, L2, R2, Up,
Down, Right, Left(2), Right, Down,
Up at the "Press Start" screen.
