yes the cosmic silver back shows up at lv.70,72 or 73 and you have to defend yourself. the cosmic silver back is unkillable unless you have a Zeus cannon and raygun.the rounds last 5 minutes and then the next round starts.
You can beat it or type in 3ARC UNLOCK on the computer
Beat the game and you unlock the pentagon
Sorry but the Zombies Pentagon map on zombies also known as FIVE only on PlayStation 3 and Xbox 360. Hopefully if they make First Strike for the wii they will add Pentagon ( Five) in the pack.
super zombies..still has a mind of a human just more evilier
Black Ops 2 Zombies is harder but also way funner than Black Ops Zombies.
Black Ops does have zombies
wen u get 2 tha 3 rd level and u open a new door
a new zombies map called "five". you play as a president from the '60s in the pentagon pretty badass
It is possible and most likely to be in real life.
If your referring to the "Nazi Zombies" map "Five", simply beat campaign on any difficulty.
Yes, zombies are back in Black ops.
If you are talking about the map "five" he is the pentagon thief and he steals your gun and teleports you to the room with the power switch.