Xeno


 * For the identity this person stole, see Xander Summers.

"We both know that I'll enjoy killing you most of all!"

- Xeno to Zero

Xeno (ゼノ) is a sentient artificial intelligence created by an unnamed scientist and the second main antagonist of Zero and the archenemy of Ben Carone. He was originally derived from encrypted code within the Xenothium core discovered by his creator, and later retooled by Dr. Cyanide.

However, Xeno quickly became corrupted due to the malicious nature of the Xenothium core. Killing his creator, he went on a rampage across the country and crossed paths with Ben Carone/Zero. Launching the Xeno Offensive, he made robotic versions of the heroes still active at that time and succeeded in taking over the world, but was eventually defeated by Zero. 3 years later, he was stranded in 2017 by Zero during a brutal fight.

With no way home and weakened by his nemesis, Xeno focused on taking over the world early and killed and posed as Xander Summers, looking to capture superhumans created by Kane. However his true goal was revealed and tried to recreate the Xeno Offensive, in addition to constructing a doomsday device. He and his army were defeated by Team Zero, Team Stryker, and the Legends, via a deadly shockwave created by Zero.

Due to a temporal loop caused by the 2017 Xeno Offensive, Xeno's creation was ensured. Unfortunately for Ben and his friends, Xeno was able to reconstruct himself and returned to cause chaos by fusing himself with Astral. In a final confrontation with his nemesis, the android nearly succeeded in killing his nemesis but was finally obliterated Zero, Adam Hart, and Black's combined force.