Feyesh

A Feyesh is an enemy in the Subspace Emissary with a body that looks like a one-eyed goldfish. It floats lazily through the air. When it spots the player, its eye opens and it attacks with its five tentacles. Despite its resemblance to a fish, Feyesh cannot survive in water. If their eyes touch water, they disappear, leaving behind only a few bubbles. Its name is a portmanteau of the words "fish" and "eye".