Random Perk Bottle

"Random Perk Bottle," or more commonly known as "Mystery Cola" or simply "Bottle," is a new power-up featured in the Zombie maps Ascension, Call of the Dead, and Shangri-La. It appears as a glowing bottle similar to a Perk-A-Cola or Molotov Cocktail. During Space Monkey rounds in Ascension, monkeys will attempt to destroy the Perk-a-Cola Machines. If all of the monkeys are killed without damaging a perk machine, the player will be awarded with a Perk Bottle along with Max Ammo. In Call of the Dead, the Bottle, alongside a Death Machine or Wunderwaffe DG-2, appears if George A. Romero is neutralized with any weapon excluding the Pack-A-Punched V-R11. The Random Perk Bottle power-up gives all living players a random perk at no cost to the point total, making it a hit-or-miss power-up.

In Shangri-La a Random Perk Bottle is attainable by allowing a Monkey Zombie to take any dropped Power-Up and killing them to drop one.

Trivia

 * It is possible to obtain all of the Perks in a map if the player obtains the Random Perk Bottle enough times.
 * This is the only power-up (excluding any power-ups received in Nacht der Untoten if played in World at War) that the Demonic Announcer does not state a line upon acquiring it.
 * The Random Perk Bottle will not award the player any more Quick Revives once the machine has disappeared, even if the player had all other perks.
 * Additionally, if one were to buy another perk (on Ascension) or kill George without perks (on Call of the Dead) and they received Quick Revive, it will not count towards the number of times said person can have it.
 * It originally appeared as one of the perks which flew across the map in Der Riese once the Fly Trap was activated. After the perks fly away, the Random Perk Bottle becomes the bottle of Juggernog in the Teddy Bear's hand.