GI Joe: The Rise of Cobra Cheats for PlayStation 2
At the 'Start' menu, enter the following codes using the D-Pad to unlock the corresponding characters classic costume. If the code has been entered correctly you will hear a 'Yo Joe!' sound (the voice will be male for Duke and female for Scarlett). These characters are separated from the modern outfit characters.
Unlock Classic Duke Costume:
Press Left, Up, Square, Up, Right, Triangle.
Unlock Classic Shana 'Scarlett' O'Hara' Costume:
Press Right, Up, Down, Down, Triangle.