クトゥルフのめだま
One of the first bosses in [[Terraria]]. Named after [[Cthulhu]], this [[disembodied eye]], when reaching half health, turns into a mouth.

In Hardmode, there is an upgraded version of this boss known as [[the Twins (terraria)|]], consisting of [[Retinazer]] and [[Spazmatism]].
eye of cthulhu