Abysshammer

Abysshammer (アビスハンマー): A Hammerhead shark monster with machine guns and missile launchers. It targeted a client of Kitaoka. Destroyed by Ryuki's Dragon Rider Kick and Zolda's Giga Launcher. Abysshammer appeared in Shinji's dream during the Hyper Video special, among those destroyed in Zolda's End of World.

Kamen Rider Decade
He is one of Kamen Rider Abyss' two Contract Monsters. Kamen Rider Abyss' Final Vent enables Abysshammer and Abysslasher to combine into a giant shark called Abyssodon (アビソドン) which is when it is destroyed by Decade and Ryuki Dragreder.