メタルヒーローシリーズ
is a Japanese television series that aired on TV Asahi and its affiliates from January 24, 1988 to January 22, 1989, lasting 50 episodes. It was the seventh installment in Toei's "Metal Hero Series" franchise of live-action superhero shows and the last of the Showa era. The series centers around a young ninja master named Toha Yamaji, who must face against numerous ninja masters from different parts of the world by donning a special armor to become his alter-ego Jiraiya.