Sigma

<p>Sigma is the recurring main antagonist of the Megaman X series. A former commander of the group known as the Maverick Hunters whose purpose is to apprehend or eliminate rogue robots known as "Mavericks", Sigma later succumbs to the effects of the mysterious maverick virus that transferred from the former-maverick Zero and into Sigma. It left Zero with amnesia of their encounter and the virus laid dormant within Sigma, merging with his programming. He eventually rebelled against the Maverick Hunters and humanity as a whole, starting legions of other reploids to join his cause of beginning a reploid-only empire and destroying humans, his reason for which was originally due to hearing the praise of X and his endless potential which gave inspiration for Sigma to rebel. His plans are always often stopped by the heroics of veteran Maverick Hunters X and Zero. With each defeat however Sigma returns in a new(yet identical)body thanks to the maverick virus imbedded in his programming allowing him to live on as a sentient digital virus if his body is destroyed. Sigma is naturally quite tall for a reploid standing at nearly 8 feet. Regardless of the form he takes he retains his signature bald humanoid appearance with blue eyes, purple scars above and below his eyes and a red forehead gem as well as rounded lobes in place of ears. These traits even carry over to the numerous large backup "Battle Bodies" he can possess. As a reploid, Sigma's combat capabilities are vast. He's capable of doing things like firing eye lasers, being proficient with bladed or energy weaponry like guns or beam saber, and due to the virus inside him he can forcefully inhabit or use his viral influence to affect mechanical beings around him to his will. </p>