On the Main Menu, alternately tap RIGHT and LEFT triggers (or hold the Space bar on a keyboard). After a bit, you'll stand up. Leave your seat and examine the back wall. A small black and white computer terminal can be found here. Approach it and enter these codes using the on-screen keyboard in the "Central Intelligence Agency Data System."
Much like the Ray Gun in the previous game, the Thundergun can be unlocked in Black Ops by performing the following specific actions on the level "Numbers." After the interrogation ends, look for six canisters. Toss grenades at the canisters to the rear left and rear right. Shoot the other canisters until smoke is released. A black tape will appear out of a cassette deck. Grab it with the action button. Leave the room and head upstairs. Kill everyone and move to the rooftop and jump to the next floor. Weaver and Clark will move the fridge revealing a weapons cache. Here you'll find the a cassette player. Hit the action button here and you'll put the tape in the deck. You should hear music and the screen will shake and shortly the Thundergun will come out of the wall. Enjoy!
The new Zombie map, Shangri-La, from Annihilation DLC features immortal zombie monkeys. At first they don't seem to do anything, although if you kill them they'll respawn. However, once a power-up drops nearby these zombie monkeys will snatch up the power-up and attempt to take it back to the shrine. While running back to the shrine, the power-up in the monkey's possession will switch between the different power-ups. If you kill it, it will drop whatever power-up it held last, but other zombie monkeys will try to retrieve it as well. If you manage to grab it before a monkey does, the monkey tries to loot 50 points from you.
Here is a list of all gun upgrades you can get via the Pack-a-Punch machine.
At the Battle of Khe Sanh, you're told to clear the trenches. What is missed by most is a nearly inaudible clue telling you that there are barrels full of napalm. And, more importantly, there's no help in telling you what to do with those barrels. Shooting them does nothing. Neither does trying to clear the trenches with one of the mounted machineguns, as the Viet Cong keep pouring out in an endless wave. Nope, you have to run to two of the giant, striped barrels near the bottom of the hill and kick them down into the trench. There are two of them. Hide behind the sandbags and take shots at the VC until it's relatively clear. Make a run for the nearby barrel and use the prompt to stab it and kick it down the hill.
At the cheat terminal, enter LOGIN and then the following login accounts and passwords to read various people's email. You can also use the DIR and CAT commands to view files after logging in. Note: Enter WHO to see a full list of login accounts.
You can also enter the RLOGIN DREAMLAND command to login to an account with MJ12 access. Here are the logins and passwords for Mj12 access:
I'm not sure if you guys knows this but me and some friends figured this out. If you want to reach the Pack-A-Punch on the Zombies mode "Five" map:
Make a crawler and go into the middle room and adjust the DEFCON level to DEFCON 5. Every teleporter will take you to Presidential Suite. All switches are in that room -- 3 are upstairs and 1 is downstairs.
You must have the Annihilation DLC for this. You play this song by holding X (A on 360) when your near these small teddy bears. these teddy bears are standing up and holding large sickles. One is in the first room you appear in, its on the top level of the room on the right side next to a radio. The second is near the lunar lander next to the speed cola machine on a high ledge. And last is by the lunar lander nearest to stamin-up. On the left side of that part of the map there is a gate, you go to the gate, crouch, and somewhere behind the gate is another teddy bear. Once you hold X (A) to all 3, the song will play.
Note: This requires Call of the Dead, a map pack update. You'll need the This strange Easter egg requires you to activate three meteorites. The first meteorite can be found right in the starting area by the canister.
For the second one you must get 750 points. Open the path to the right (while facing the lake) of the starting area. Head upstairs, pass the blockade and enter the room with the tables. On the far side is a meteorite lying on the seat.
You'll need 750 points to open the path to the lighthouse. Underneath the large staircase leading up to the lighthouse is a room. Facing the staircase turn right and make your way to the room below. The meteorite is here. After finding it, "I'm Not Ready to Die" by Avenged Sevenfold will play.
In the Zombie map "Kino Der Toten" there is a teleporter in front of the curtain on stage. When you use this teleporter you get sent to the room that contains Pack-a-Punch machine and a window. If you wait about a minute you'll be teleported again to one of several secret rooms. Inside the secret room that contains the presidential seal and a projector, there is a desk. On the desk there is an old roll of film which you can pick up (be warned you will not be prompted to pick it up, you just can).
On the Zombies map Five, approach the red telephones and hit the button prompted to change the background music to "Don't Back Down" by Eminem. There are 3 red telephones in all: One by the Quick Revive machine, another on the second floor in the center of the room and a 3rd one is in the room with the Pack-A-Punch machine.
If you shoot the mannequin heads in Nuketown you'll hear "Sympathy for the Devil" by the Rolling Stones. -Drunksocks
In the Zombie map "Kino Der Toten" there are 3 pieces of a meteorite located throughout the map. The first is by the stairs when you start the level. The second is in the "boiler room." The third is in the "dressing room." Hit the prompt when next to the piece and your character will say a line about the meteor -- when all 3 pieces have been found, "115" by Elena Siegman will play. -jacobosin
Also, on "Kino Der Toten," in the first room upstairs from where you start, there are 5 pictures on the right. Four of them are the characters you play as and one is blacked-out. You can examines these to hear your character say something about each one. -Jeff