Press Up, Triangle, Left, Square, Down, X, Right, Circle, then hold L1 + R1 at the Bandai Logo. A sound will be heard
if you entered the code correctly. Next, release L1 + R1 after the title screen appears. Finally, press L1 + L2 + R1 + R2
to access "Addition Mode", which allows you to play FMV sequences, narrations, 3D demonstrations, and voices.