Zombies can easily overrun players if they don't sprint with a pistol, submachine gun, or shotgun. Zombies in this map are also much faster than other maps, as well as smarter. Unlike the predecessor map, zombies are now able to attack players through the barriers and will continue to do so in all maps after this one. In the World at War version, Zombies in this map are much more aggressive than in Nacht der Untoten. The map is more close-quarters than Nacht der Untoten was, having many short hallways and narrow staircases. The door will only open if the Power Switch is activated. Unlike any other Treyarch Zombies map, Verrückt has two spawn areas, which are separated by an electric door. Another feature is the Electro-Shock Defenses. The most prominent features are the Perk-a-Cola machines, which mirror different multiplayer Perks, and the Power Switch. Verrückt is much larger than Nacht der Untoten, having more than triple the rooms, and features many more weapons and utilities. In World at War, the players are the Marines, while in Black Ops and Black Ops III, they are the rest of the Ultimis crew, who were first seen in the World at War version of Shi No Numa. They find it overrun by zombies, and try to fight off the horde as long as they can.
'Tank' Dempsey, John 'Banana', Smokey and Paxton 'Gunner' Ridge arrived at Group 935's Asylum Facility located at the Witteanu Sanatorium in Berlin, Germany in 1945 to extract American spy Peter McCain to safety.
