Mega Man ZX takes place several hundred years after the events of Mega Man Zero, in a world where Reploids and humans coexist peacefully. The Mega Man ZX series is the first Mega Man series to make its way to the Nintendo DS system, and is the first series of games to offer both a male and female protagonist. The bosses in these games are known as Pseudoroids. There are only two games in the sub-series, and a two-volume manga set translated by UDON for release in North America.