Dai-Gunkai

The Dai-Gunkai matches the Dai-Gunzan in raw bulk while running noticeably longer, an aquatic Gunmen fortress that acts as Adiane's flagship, its greatest strength being its command of the sea. In shape it recalls a huge centipede or worm, a long segmented body edged with rows of small fins that read as legs. At the prow sits a leering visage, eight eyes set across it and two scythe-shaped pincers jutting forward, while the bridge, built like a submarine, wears four eyes of its own and wields jointed arms tipped with enormous lobster claws.

The vessel appears bound to water, though its debut came with a sudden downpour flooding the field, hinting it can steer or even conjure great volumes of water, and it dives to crushing depths the way a submarine would. Its underwater agility and strength are considerable, enough to haul the Dai-Gurren far below the surface. Torpedoes that dolphin Beastmen steer, plus two enormous pincers able to rip through even the Dai-Gurren's hull, form its core weaponry, backed by a cannon set in each eye for fighting on the surface. In the film it gains a saurian, heavily legged body for land combat, later merging with the other Dai-Guns into Do-Ten-Kai-Zan before being swiftly destroyed. The syllable read as sea in its name marks it as an ocean unit.

Adiane owns the Dai-Gunkai, and Viral takes temporary command of it. Its lone combat showing comes when it ambushes the Dai-Gurren mid-crossing; Adiane hands the ship to Viral so she can fight personally in her Sayrune, and Viral uses it to shear off the Dai-Gurren's flippers and drag it under. Gurren Lagann spoils the plan, drilling like a waterscrew to force the ship back up, stripping away the pincers, and finally boring straight through the whole body, with Viral left as the only survivor.