Aquatank

The Aquatank is a fish-like Heartless encountered in Atlantica in Kingdom Hearts. This bulbous creature resembles an angler fish: has a rounded body with fins that resemble arms ending in three clawed digits, the tiny yellow eyes and jagged jawline common among most Heartless, and a glowing antenna that curls in on itself.

When an Aquatank appears, it is accompanied by three Screwdivers clinging to its underbelly (unless the maximum number of enemies that can spawn are already present). It will not attack until it has been provoked, at which point it will charge towards its prey while constantly snapping its jaws. It is also capable of firing magical lightning blasts which will not only harm Sora and friends, but also heal any Screwdivers present.