Warthog Fangire

The Warthog Fangire (voiced by Akira Kubodera) named Aberu who was wearing a cowboy outfit and is also one of the Fangires who seeks to become the new King of the Checkmate Four. To that end, he targets any human with special abilities who may be the current King-to-be. He has superhuman strength and a pair of claws on each wrist. His true name is Propeller Kingdom's Collapse (プロペラ王国の崩壊 Puropera Ōkoku no Hōkai) and is of the Beast Class.

The Warthog Fangire of the World of Kiva was among several Fangire who fought for their king, Wataru, when their world was merged into the world of the Rider War. He is destroyed alongside the Shark Fangire and a Horsefly Fangire by Diend. Aiding in the fight against the World of Blade Riders and Undead, Yuki sics him on Tsukasa Kadoya when he refuses to aid their side. The Fangire is easily destroyed by Decade in seconds as a result.

It is destroyed by Kamen Rider Kiva's Darkness Moon Break.

A revived Warthog Fangire was one of the various past monsters part of the army of Bujin Gaim in the Sengoku Period world of the Bujin Riders. Along with Kasha, he fought and was presumably destroyed by Armored Rider Gaim Ichigo Arms.