You c - Asteroids
You can the classic version this game by holding Select and pressing Circle, Circle, Circle, Triangle, Square, Square, Circle at the title screen, a sound will confirm correct code entry.
Codes for Classic game:
Extra Life - Up, Down, Left, Right, Circle, Square, X, Triangle
Invincibility - Down, Down, Up, Up, Circle, Square, Triangle, Triangle
99 Lives - Up, X, Down, Triangle, Left, Square, Right, Circle
Hold Select and press Triangle, Circle, Circle, Triangle, Square, Circle, Square at the title screen, a sound will confirm correct code entry.
Hold Select and press Square, Triangle, Circle, Triangle, Triangle, Square, Circle at the title screen. Then start a game and hold Select, then press Start and you will access a special menu, select your options (including start stage) then press L1 to be warped there.