Mega Man: Dr. Wily's Revenge, known as Rockman World (ロックマンワールド Rokkuman Wārudo) in Japan, is a platform video game by Capcom for the Nintendo Game Boy. It is the first game in the handheld series of the Mega Man franchise. It was first released in Japan on July 26, 1991, and was localized in North America that December and in Europe the following year. The game continues the adventures of the android hero Mega Man as he once again confronts the evil Dr. Wily, who has recently dispatched his revived "Robot Masters" and a new "Mega Man Killer" named Enker.