:: video games cheat and cheat codes ::                                            

XBox - Conflict: Global Terror cheats

Cheat option:
Go to the main menu, then push L, R, L, R, X, white, black, X 
buttons combination on your Xbox controller to get access to 
the cheat menu.

Unlock Extreme mode:
Finish the game once on normal or hard difficulty level to get access 
to the extreme difficulty level.