G.I. Joe: The Rise of Cobra (Nintendo Wii)
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Cheat mode
Enter one of the following codes at the main menu or title screen to activate the corresponding cheat function. A sound effect or the phrase "Yo Joe!" will be heard to confirm correct code entry.
Function
How to unlock
Duke
Press Left, Up, Square, Up, Minus, Plus.
Scarlett classic costume
Press Right, Up, Down two times, Plus.