Deadly Skies Press L2, L1, Triangle, Up at the title screen. Press Up, Down, R1, Circle, Square, Left, L1 at the plane selection screen. Press Square, R1, R2, Square, Up, Square, L2 at the plane selection screen. Press Left, Up, Right, Triangle, Select, Left, Right, X during game play. Press Right, Down, Left, Up, Triangle, Select, R1, R2, X during game play. Press Right, Down, Left, Up, Triangle, Select, Left, Right, X during game play. Press L2, L1, Square, Up at the versus mode selection screen. Press L2, L1, Square, Down at the versus mode selection screen.