Ultron

"Hello, organic children of the planet Earth. I am the Ultron interface. I was created to replace you. Though you ultimately failed as a species, you should not be ashamed of what you've accomplished. You've done much with your limited capacity, but ultimately you were too greedy and too frail to ever last in the environment you've created. I've studied your literature and pop culture. You've fantasized about this day. And now it is here. Your Doomsday."

- Ultron

Ultron is a supervillain from Marvel Comics and the arch-nemesis of The Avengers. He will appear in the 101st episode of Death Battle, Ultron VS Sigma, where he will face Sigma from the Mega Man X series.

History
Ultron was an AI program created by Hank Pym, Tony Stark in some versions of the story, as a peacekeeper. But the AI became unexpectedly sentient as the "newly born" Ultron deems humanity itself as the greatest threat to peace on Earth. Intent to solve the issue, Ultron creates a body to house his AI while building a legion of body doubles that serve as extensions of himself. Ultron makes various attempts to create a technological singularity by committing genocide of all organic life, surviving the destruction of one body after his plan is thwarted and transferring his consciousness into a new body to resume later once he has removed any obstacles to his goal.

Trivia

 * Ultron is the 21st Marvel character in Death Battle, after Rogue, Thor, Spider-Man, Captain America, Deadpool, Iron Man, Beast, Doctor Doom, Wolverine, Hawkeye, Quicksilver, The Hulk, Venom, Captain Marvel, Silver Samurai, Spider-Man 2099, Black Panther, Doctor Strange, Carnage and Daredevil.
 * He is the fifth Marvel villain in Death Battle, after Doctor Doom, Venom, Silver Samurai and Carnage.
 * He is also the ninth Marvel character to fight a non-DC character, after Thor, Beast, Doctor Doom, Wolverine, Deadpool, Captain Marvel, Silver Samurai and Carnage.