G.I. Joe: The Rise of Cobra Cheats - PlayStation 2
Primary Collection of Cheats
Unlock Classic Characters
Enter the following codes with the D-Pad at Start Menu. A "Yo Joe!" sound will be heard if the codes you entered are correct (The voice will be a male voice for Duke and female voice for Scarlett). Note: The characters are separated from the modern outfit characters.
[Left], [Up], [Square], [Up], [Right], [Triangle] - Classic Duke.
[Right], [Up], [Down], [Down], [Triangle] - Classic Scarlett.