Sea Canthller (a play on coelacanth) is the "mini-boss" of Bubble Crab's stage in Mega Man X2. Destroying it is optional, but it will make the level easier if you do. 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 a 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. The Canthller is susceptible to Sonic Slicer, which can easily destroy its vulnerable body components. A fully charged Sonic Slicer is capable of defeating it in a single shot. Alternatively, the Giga Crush will instantly destroy it.