Ironically, soon Sigma himself went Maverick, taking many of the Hunters with him to lead an anti-human rebellion. Having free will, some of the Reploids began to go rogue, and were thus branded 'Mavericks.' To counter the threats of Mavericks, a law enforcement group known as the Maverick Hunters, led by Sigma, were formed. Cain studied X and attempted to replicate his specs, resulting in Ridiculously Human Robots called Reploids. There he found a robot capable of physical evolution and mental free will, known simply as X. The game is set in the year 21XX, after scientist Dr. Mega Man X is the first entry in the Mega Man X series, released on the Super Nintendo on Decemin Japan, January 1994 in North America, and May 1994 in Europe.