(adsbygoogle = window.adsbygoogle || []).push({}); I found this on a thread:
"I have been watching live streams on justin.tv, mainly f1stdacuffs and he was showing us around the main menu. After the game loads and you come to the main menu, you will be in first person view and will be looking at a monitor that you can select 4 options :

CAMPAIGN
MULTIPLAYER
ZOMBIES
OPTIONS

...But you can move your head 180 degrees and up and down, soon you realise that you are strapped to a chair and seems that you have recently been tortured. while panning around to the left you can see medical equipment, that they may have been used to keep you alive longer, possibly to extract more information by keeping you alive longer. If you pan to the right you can see numerous monitors showing video clips similar to gknova6.com but altered with J.F.Kenedy and other images. also there is a door behind in the corner but i will get to this in a bit.

It is possible to to squeeze out of the straps on the chair by tapping R2 L2 in quick succession, then you are free to foam around the menu room, the most bizarre and clever edition is a DOS computer this is situated right behind the starting chair, only accessible out of the starting chair. The computer can be used to enter code commands !

The DOS computer so far has had a few successful codes unlock new content in black ops...typing code:

cd bin [enter] and then DEAD OPS ARCADE (DOA) [enter]
This unlocks dead ops arcade and puts it in the MAIN MENU ZOMBIES 3rd slot, you only have to do this once,

zorke [enter]
brings you to a command based game, situated by the whitehouse ! if you type N as in (north) it comes up with other clues and game progression.
(SIDE NOTE) not sure if ZORKE is 100% correct .

Ok now to this MYSTERIOUS DOOR !

The door looks like a high security door it has warning light surrounding it, f1stdacuffs said he could hear zombie noises coming from it. it hasn't any form of ways of opening it from the door itself !!!, but there's where the DOS computer comes in.

I have a strong suspicion that ZORKE will unlock this when figured out eventually, or maybe a code found within the zombie maps like "kino der toten" or "pentagon". I KNOW THIS IS 100% accessible, HOW?

Well we have already seen in this room GKNOVA6 anyone !!! YES....Remember the strange room with a red flashing warning light ? that is inside this room !!
i hope you enjoyed this read ? and i tell you treyarch know what they are doing.....is this the SURPRISE for the zombie fans ? I BELIEVE WHATEVER IS PAST THAT ROOM IS GOING TO BLOW US AWAY ! "
Update-> screeny-> far right You must login or register to view this content.

source: credit goes to flyingzombiekiller on this thread-> You must login or register to view this content.

Damn, what was that code again? 40965 or something like that?

41063
I think it was that

wow you can walk around the main menu and enter commands to unlock things
maybe you can enter hacks for the game lol. <its a joke i know its not

Treyarch knows how to make great easter eggs, who knows what we will find, but I'm sure it will be great.

ebola=41093

the number was 47093 not to hard to remember right?

Once you have got up can you sit back down cause other wise were gonna have to re set the game to go on the menu aha

I'm positive you will not have to reset the game to go to the menu.... Treyarch is not that stupid .

Yeah you press A for xbox, and X for ps3 to sit back down.