De-Perk-ifiers

De-Perk-ifiers are power-ups that are featured in Deathwish by EternalBlaze and Interceptor 7. They debuted in Insanity 2.0 and are consistently featured in all maps after.

Effect
Like Negative Power-Ups, De-Perk-ifiers have a negative effect toward players. Instead of affecting other power-ups, they can affect perks (that players currently hold). There are effects for each canon perk featured in the storyline, as non-canon perks of the storyline are only featured in the map they debut in. It may effect part of the perk, or may just disable all of it. There is only one power-up, which can affect one perk or even multiple perks; the power-up lasts for however the longest wait time is (which is 5 rounds for Juggernog, if it is affected). The outcomes are listed below:

Juggernog

 * Players do not take as many hits to die.
 * All zombies take more damage.
 * Juggernog is disabled (and cannot be bought) for five rounds.

Speed Cola

 * Players reload 1/2 as slow.
 * All zombies hit and run twice as fast.
 * Speed Cola is disabled (and cannot be bought) for two rounds.

Quick Revive

 * Teammates that have been downed more than 5 times will not be revived quickly.
 * All zombies break and go through barriers faster.
 * Quick Revive is disabled (and cannot be bought) for three rounds.

Double Tap

 * Players shoot slower, rather than faster.
 * All zombies can lunge.
 * Double Tap is disabled (and cannot be bought) for one round.

PhD Flopper

 * More damage dealt if falling from high area.
 * Explosives, distractors, and explosive Wonder Weapons do not affect zombies.
 * PhD Flopper is disabled (and cannot be bought) for four rounds.

Stamin-Up

 * Players cannot run.
 * Zombies walk faster.
 * Stamin-Up is disabled (and cannot be bought) for two rounds.

Mule Kick

 * Two of the player's three weapons are taken away.
 * All zombies can kick players, which is an instant kill.
 * Mule Kick is disabled (and cannot be bought) for two rounds.