Kamen Rider Kiva
In pursuit of his goal to become the new Fangire King, he targets any human with special abilities who may be the current King.
Kamen Rider Decade
In the World of Kiva, the Warthog Fangire was among the Fangire who fought for their king, Wataru, when their world was merged into the world of the Rider War. He was destroyed alongside the Shark Fangire and Horsefly Fangire by Diend.
The Warthog Fangire was later summoned by Yuki to attack Tsukasa Kadoya after he refuses to assist their side, but Decade easily destroyed the Warthog Fangire.
Kamen Rider × Super Sentai: Super Hero Taisen
The Warthog Fangire appears as a member of the revived Dai-Shocker led by Tsukasa Kadoya and Narutaki/Doktor G, which later allied with Dai-Zangyack to form the Shocker-Zangyack Alliance to annihilate all Kamen Riders and Super Sentai
Kamen Rider Wizard
The Warthog Fangire appears as one of the monsters within the World within the Magic Stone ruled by Amadum. It is destroyed by Kamen Rider Kiva's Darkness Moon Break.
Kamen Rider Gaim: Sengoku Battle Royale
The Warthog Fangire was one of the various monsters who were part of Kamen Rider Bujin Gaim's army in the Sengoku Period world of the Bujin Riders. He along with Kasha fought Armored Rider Gaim Ichigo Arms and and was presumably destroyed by it.