Sigma


 * This article is about the Worlds Unite character. You may be looking for E-117 Sigma.

Sigma is the main antagonist from the Mega Man X series, a Reploid that turned into a Maverick sentient virus. In the comic book series published by Archie Comics, Sigma appears as one of the main antagonists in the crossover Worlds Unite.

History
In 21XX, after Sigma passed some time studying the Genesis Portals, learning how to control them and discovering different worlds. When the Maverick Hunters attack his base, he uses a Genesis Portal to escape, deciding to go to the Lost Hex and possessing Orbot. As Orbot, Sigma made an alliance with the Deadly Six and broke the Cacophonic Conch, leaving Dr. Eggman defenseless. Forced to do their biding, Eggman created a new body for Sigma, moving from Orbot to it after completion. He then orders Eggman to create more for him, but Eggman complains that he is only one and working on his body was tiring. Sigma agrees and decides to take Doctor Wily from Mega Man's world to help him. After the two doctors finish creating armors to enhance the powers of the Deadly Six, the Zeti attempt to use their improved ability to control machines to have Sigma under their control. While they are able to control his body, they can't control his will, and he reveals that the Zeti's armors allows him to control them. Doing so, he prepares to the next part of his plan, but Drs. Eggman and Wily convince him that Sonic the Hedgehog and Mega Man might causse trouble, so he sends the Deadly Six to capture them.