watch 01:48 The Loop (TV) Do you like this video? This article is about a/an kaijin in Kamen Rider, the original series. Seadragon III (シードラゴンⅢ世, Shīdoragon Sansei, 76) - A seahorse monster. One of the Seadragons. He was destroyed by Kamen Rider #1's Rider Punch. Retrieved from "https://kamenrider.fandom.com/wiki/Seadragon_III?oldid=290817" Categories: Kamen Rider Monsters Shocker Kaijin Seahorse Monsters Community content is available under CC-BY-SA unless otherwise noted.