Hydragoon

Hydragoon appeared in 2002 movie called Kamen Rider Ryuki: Episode Final. Hydragoon (ハイドラグーン Haidoragūn) is a blue dragonfly monsters that is the evolved forms of Raydragoon, thusly the second evolution of Sheerghost. Hydragoons are more dragonfly-like than the other forms and are much larger, their body and tail being at least 10 feet long. They are able to fly up to 900 kilometers per hour, launch their harpoon-like claws like rockets that will tow back anything snagged, and have fangs that can rip through steel.

One bursts out of a Raydragoon that Knight was fighting, chasing him into the sky and snagging him with a harpoon claw, dragging him back to it. Darkwing knocks Knight free, and he defeats the Hydragoon with his Final Vent.

Many more emerge from building windows into the real world in a massive swarm of Raydragoons and Hydragoons, attacking a crowd of civilians before Ryuki Survive and Knight Survive fly into the swarm on Dragranzer and Darkraider, easily taking out individual monsters but being severely outnumbered.

Dozens of Hydragoons appeared fighting Ubume and Ittanmomen Makamou in an all-out battle among the various monster groups during the destruction of Natsumi's world.

Another massive swarm of Hydragoons joins Amadum's army of his strongest monsters to fight the Heisei Riders, most Riders taking out at least several in one way or another.