Isoginchak (イソギンチャック Isoginchakku, 49) - A sea anemone monster from Shocker's African branch. He had a whip for his right hand, could suck enemies into his head to digest them in seconds, and had an enhanced sense of smell. He was destroyed by Kamen Rider #1 and Kamen Rider #2's Rider Wheel, Rider Reversal, and Rider Double Kick.