sized superheroes who transform into a cyborg, android or  mutant by performing a "henshin pose," and usually fight their  enemies with martial arts, minimal weaponry and a finishing attack  (usually a flying kick). The Sentai Series (starting with  Ishinomoris _"Himitsu sentai Gorenjâ" (1975)_ (qv)), Metal Heroes  (starting with _"Uchû keiji Gyaban" (1982)_ (qv)) and hundreds of  other contemporary Japanese superheroes were an offshoot of this  historically