|This article is about a/an kaijin in Kamen Rider (Skyrider).|
Assists Uni Demon with eliminating Kamen Rider 2 and Skyrider so that his plan succeeds. Realizing his weakness, Skyrider disarms the Shiro Ari Commandos before using his Rider Typhoon Head Drop, drying Okkapa Hoshi's head of all water before being destroyed by Skyrider's Sky Kick.
With regards to his Kappa lore, water is power source and he requires frequent head rehydration from two Shiro Ari Commandos holding a water bucket and toilet brush. His head is actually a cucumber slice which can be removed and thrown as discus bombs. He can throw some of them into his "Soratobe Sara-Yo" (Flying Plate) - essentially a hovering UFO platform. Then there is signature "Kappa Maki" attack which is picking the edge of his cucumber roll head and blowing a seaweed curtain that wraps enemies and suffocates them before they explode from the immense pressure.