Ghost In The Shell Codes -

All mission and training FMV sequences:
Quickly press R2, R1, Square(2), Up, Down, Square(2), R2(2) at the main menu. A sound will confirm correct code entry. For the PAL version of the game, quickly press R2, R1, Up, Down, Square(2), R2(2) at the main menu.

Hidden Motoko Kusanagi picture:
Finish all missions without continuing to view a bonus picture after the ending credits.