Suddendas is one of the Galaxy King Kaijin vanguard. In A space station, team called, TENKA. Suddendas sended by Galaxy King to killed the teams and started attack the space station to super-powered weapon test. The man send the dog name Eren, to escape from their attacks, and set course of earth. Ari Commandos chasing mother and her daughter. Suddendas and his assistant Jaguar Van captured little girl for hostage, retreat to the spaceship. Galaxy King and Admiral Majin were planning to use the big missile for conquer the world. Until Skyrider came to stop their plotting plans. So they send Suddendas, Jaguar Van, Armadig, and Second Generation Cyborg Corps to eliminate all 8 Riders. When Kaijin Corps and the base started collapse, Suddendas destroyed by Skyrider's Pile Drop.
Behind the scenes
Suddendas received a homage in the form of Suddendath, the Mutamit form of Katal, a villain in Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max.
- Further, an upgraded version of Suddendath called Suddendath Beta appears in Kamen Rider Fourze Hyper Battle DVD: Rocket Drill States of Friendship.