Sea Canthller

Sea Canthller (シーキャンスラー) is the "sub-boss" of Bubble Crab's stage in Mega Man X2, a coelacanth-like Mechaniloid that was originally created to transport Jelly Seekers. Destroying it is optional, but it will make the level easier if the player does. It can fire up to three homing missiles out of the ports on its back and deploy explosive mines from its mouth. Additionally, getting caught by the search light emitted from the crystal lens on its underbelly will trigger the Canthller's strongest attack: a thin, focused laser beam that sweeps from the front of the enemy to the rear. Sea Canthller is susceptible to Sonic Slicer, which can easily destroy its vulnerable body components; a well-placed, fully charged Sonic Slicer is capable of defeating it in a single shot. Alternatively, the Giga Crush will instantly destroy it.

Other media
The Sea Canthller makes an appearance in the Rockman X (manga), where it gets attacked by X, Marty and her crew of pirates.