Ultron-Sigma

Ultron Sigma is the main antagonist and final boss of Marvel vs. Capcom Infinite. It consists of a fusion brought from the alliance of Sigma and Ultron.

Fanon Wiki Ideas

 * Vegito vs. Ultron Sigma

Possible Opponents

 * Infinite (Sonic the Hedgehog)
 * Brainiac (DC Comics)
 * Thanoseid (Amalgam Comics)
 * Turbo Mecha Sonic (Super Mario Bros. Z)
 * Dark Kahn (Mortal Kombat vs DC Universe)
 * Digimon
 * Omnimon
 * Millenniumon
 * Dragon Ball
 * Super 17
 * Android 21
 * Zamasu