PhD Flopper is a permaperk that can only be attained in the new Zombies map for Call of Duty: Black Ops II, Buried. As a hidden permaperk, the only way to get it is to jump from a certain distance and take fall damage. It’s a recreation of the sort of perk that you’d pick up at the Perk-a-Cola dispenser.
Watch the video if you want to find out how to get the PhD Flopper. You’ll notice a green flash when you take fall damage.
As you may have already known, Buried is the new Zombies map that comes in the Vengeance DLC pack. You can take a look at the map, along with gameplay footage here.
Call of Duty: Black Ops 2 Vengeance is out today on the Xbox 360. It’ll be a month before it comes out on the PC and PlayStation 3 due to an exclusivity deal between Activision and Microsoft.