Q&A for How to Get out of the Torture Chair in the Black Ops Main Menu

Yes, once you exit the torture chair you turn and activate the computer and can put in a variety of codes, unlocking the zombie maps 5 and dead ops arcade.

There's no code, since it's DLC. Once you pay for it, the map will be in the Zombies menu.

Go to the "zombies" mode in the menu, and when you select the zombies map, you should see the two unlocked maps.

The door is sealed shut so you can't get out no matter what. But if you play the last mission in camping, then you will be freed but otherwise, no. Only you can get free from the torture chair.