Abysshammer appeared in 2002 TV series called Kamen Rider Ryuki. Abysshammer (アビスハンマー Abisuhanmā) is a hammerhead shark monster with machine guns and missile launchers. It targeted a client of Kitaoka, only to be Destroyed by Ryuki's Drag Claw and Zolda's Giga Launcher. Abysshammer appeared in Shinji's dream during the Hyper Video special, among those destroyed by Zolda's End of World.
In the World of Ryuki, Abysshammer is one of Kamen Rider Abyss' two Contract Monsters. Kamen Rider Abyss' Final Vent enables Abysshammer to combine with Abysslasher into a giant shark called Abyssodon (アビソドン Abisodon) which is when it is destroyed by Decade and Ryuki Dragreder.