Evil Minions are Minions that are at the state of extreme mutation caused by the PX-41 serum entering their blood vessels.
The Evil Minions are for all intents and purposes, made to be indestructible: they are immune to weapons like flamethrowers, guns, axes, and undercover police cars; and are able to withstand the explosion from swallowing a bomb. They will devour and destroy anything that gets in their way, including the above-mentioned weapons. Evil Minions can also repair themselves, and are very dangerous.
The Evil Minions are very different from regular Minions: having purple skin, long hairy arms, wild frizzy purple hair that spreads out like a mane, and big sharp crooked teeth. As they are wild and their appearance is in a feral state, they don't usually speak; rather they scream, roar, growl and snarl most of the time.
When the normal Minions are mutated by the PX-41, they are transformed into aggressive, wild, mindless, bloodthirsty, destructive monsters that are completely indestructible, and will eat anything in their path.
Despicable Me 2
Evil minions by minions fans-d6txvph
An evil Minion pointing at Dave, alerting the other evil Minions about the intruders
Soon after stealing the Arctic PX-41 lab, El Macho and Dr. Nefario begin to kidnap the Minions. When the Minions are injected with PX-41, they turn into Evil Minions and are planned to be stuffed into rockets that will land in various cities such as New York, Paris, Tokyo, Hoboken, and Moscow. Once this all happens it is likely that they will destroy and eat all the people in those countries and El Macho plans to treat all of the evil minions as his slaves.
Fortunately, Dr. Nefario creates an antidote and mixes it into the awful-tasting jelly Gru is developing, and utilizes a rapid fire delivery system, returning all the mutated Minions to normal. Although one Evil Minion somehow escaped and appeared at Gru and Lucy's wedding; when the family were taking group pictures he roared in front of the camera on the last picture.
List of Evil Minions
Almost all minions (formerly), including: Tom, Kevin, Donny, Jerry, Steve, John, Phil, Mike