|This article is about a/an monster in Kamen Rider, the original series.|
Antlithunder (地獄サンダー Jigoku Sandā, 26 & Rider vs Shocker) - An antlion monster. His emblem, worn by the Combatants under his command, was a silhouette of a head with large horns similar to his own. He has enough strength to knock down Kamen Rider 2 with a good punch and could dig large pits. His soldiers were able to dig through the ground to make surprise attacks. Initially, he operated independently, using his pit to attack helpless victims, but ended up working for Oberst Zol after his arrival, in spite of not liking the idea, in an operation to kill Rider 2. Although in their first encounter Antlithunder left victorious, with Rider 2 barely escaping thanks to his bike Cyclone 2, he was destroyed in their second battle, when Rider 2 hit him with a Rider Kick, throwing Antlithunder into his own pit, where he was quickly buried by the soft sand.