GI Joe: The Rise of Cobra Cheats for Xbox 360
Achievements: See the list of achievements for this game. Find or add hints to get them.
Complete the bonus mission to unlock Baroness, Destro, and Firefly as playable characters when you buy them for 15 Battle Points each.
When you complete the game and the credits have finished a cutscene will start and the bonus mission will be unlocked and ready to play.
These bonus costumes are unlocked entering the corresponding codes using the 'New Game' and 'Load Game' options at the 'Main' menu.
Unlock Classic Duke:
Press Left, Up, X, Up, Right, Y.
Unlock Classic Scarlett
Press Right, Up, Down, Down, Y.
Enter this code and unlock the classic character Shanna "scarlett" o'hara. She will be added to your playable characters. At the main menu enter: right,up,down,down,y. You should hear yojoe or another sound effect.