Not to be confused with Demon Eye.
The Wandering Eye is a flying enemy that spawns at night after Hardmode has been unlocked. It serves as an upgrade to the Demon Eye and shares the same AI.
When a Wandering Eye has been reduced to 150 health, its iris and pupil will split into a mouth. In this stage, it deals more damage and is much faster. This is reminiscent of the Eye of Cthulhu's second stage.
- The Wandering Eye, along with Lihzahrds, is the only normal enemy with more than one phase.