Laserfish

The Laserfish is an enemy that spawns in the 2nd and 3rd layers of the Abyss. It swims around when passive, but as soon as the player gets too near or hits it, it will swim in their direction and shoot lasers at them. If hit, it will not go passive again, even if the player is far from it.

Trivia

 * The Laserfish was inspired by Barreleye fish, specifically Pacific Barreleyes, which have transparent heads that contain large yellowish eyes.