The Promo Mechasultan Diaries
The genre commenced with Mitsuteru Yokoyama's 1956 manga Tetsujin 28 (Ironman #28, which was later animated in 1963 as well as produced abroad as Gigantor). Its inclusion is debatable even so, as being the robotic was managed by remote in lieu of a cockpit during the device. Not extensive after that the style was largely described by author Go Naga