Talk:Ultron vs. Sigma/@comment-26814804-20151209020424

Neither. No matter how many times you kill them, they allways come back.

Belive me, I have played Megaman X 1-6, and it dosen't matter what X and Zero do to Sigma, including injecting him with the vaccine to his own virus, he never dies.

Ultron, on the other hand, is just as unkillable. They destroy each other's bodies hundreds of times, but neither can destroy the raw information that makes up the other.