Codes for PS2, please.
Games Guru: This lets you select any level: Go to the chapter selection screen. Hold L1 + R1 and press Up (twice), Down (twice), Left (twice), Right (twice), Square, Right, Square, Right, Square to unlock all levels.
This code gives you invincibility: At the chapter selection screen, hold L1 + R1 and press Triangle, Square, Circle, X, Triangle, Square, Circle, X.
Get the game’s concept art: Finish the indicated battle on the map and unlock concept artwork:
Oran: Oran 1
Oran: Oran 2