Kikkaijin Arijigoku

Kikkaijin Arijigoku (奇械人アリジゴク Kikkaijin Arijigoku?, 20, 39): An antlion monster. His mission after Titan's failed showdown is to recapture an escaped Black Satan scientist named Totaro Tachiki who looks identical to Tachibana Tobei. He then attempts to execute Stronger and his friends, leaving them buried alive to the shoulders and dying of hunger/thirst. He can turn his arm into a drill and use it to spin and dig underground Destroyed by Stronger's Stronger Electro Kick.

Goodbye! The Glorious Seven Riders!
Later returned as part of the Revived Kaijin Corps. These revived kaijin were destroyed by the 6 Riders.

All Together! Seven Kamen Riders
Shortly after, he was once again revived as part of a new Revived Kaijin Corps. They were all destroyed by the 7 Riders. All Together! Seven Kamen Riders