Gigantor, a bipedal robot with a small head and thick body, was originally the eponymous star of a 1956 Japanese manga created by Mitsuteru Yokoyama. Production of toy Gigantors was limited to 200 individually numbered units in Japan.
「鐵人 28 號」出自 1956 年日本漫畫家橫山光輝的同名漫畫，全日本限量 200 個，每個都有編號。