Wandering Eye

Wandering Eyes are Hardmode enemies that act similar to both Demon Eyes and the Eye of Cthulhu. They are slightly bigger than Demon Eyes, and will attack like Demon Eyes until they are reduced to half health, then their pupils will morph into a mouth with teeth and will be able to travel through blocks, much like the Eye of Cthulhu, gaining bonuses to its speed and damage. They only spawn at nighttime and will flee when the sun rises.

Strangely, Wandering Eyes do not drop lenses like normal demon eyes, except on the Mobile Version.

Wandering Eyes appear more often during a new moon.