Code to unlock the Dead Ops Arcade game:

How to access the computer terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade: You can do this after freeing yourself from the main menus chair and then walking to the computer terminal. Once there, type in DOA to start the Dead Ops Arcade game, and play the twin-stick top-down zombie shooter.

Code to unlock the Zork game:

How to play Zork on the computer terminal: You can do this after freeing yourself from the main menus chair and then walking to the computer terminal. Once there, type in ZORK to start the classic Zork game, and play one of the first interactive fiction computer games.

Code to unlock all campaign levels, 5 bonus Zombies level maps, and Dead Ops:
Access the terminal in the back of the room and enter the following code: 3ARC UNLOCK

This cheat code will NOT disable Achievements/Trophies.

Code to unlock all Intel:
Warning: if you decide to use the following Intel cheat code that gives you all of the Intels, know that it will disable your ability to earn the Closer Analysis Achievement/Trophy on Xbox 360/PS3.

3AR INTEL is the code to unlock all the Intels for viewing.

Need more codes?

You can look them up in the game itself. If you enter HELP into the computer terminal after freeing yourself, that code will display a list of other commands you can enter into the computer terminal.



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