

Mega Man X4 follows two such hunters, Mega Man X and Zero, as they become involved in a conflict between the Hunters and a Reploid army called the "Repliforce". A military taskforce called the "Maverick Hunters" is implemented to suppress the uprising of "Mavericks", Reploids that begin to exhibit dangerous and destructive behavior. Taking place in the 22nd century, the Mega Man X series is set in a society populated by humans and intelligent robots called "Reploids".

A North America release followed sometime thereafter, while Europe received only the PlayStation version on October 13, 1997.

The two versions were released simultaneously in Japan on August 1, 1997. It is the fourth game in the Mega Man X series and the second game in the series to be released on the Sega Saturn and PlayStation. Mega Man X4, originally released in Japan as Rockman X4, is a video game developed by Capcom.
