Fly Eye is an enemy in Final Fantasy X-2.
Fiend Tale Edit
One notable Fly Eye was created from the spirit of a youth whose grandmother warned him that he would become a fiend for his peeping ways. Though horrified at first, remembering the stories of fiends assuming forms that reflect their misdeeds in life, Fly Eye saw it as an asset in peeping on girls in the Gagazet Springs. However, Fly Eye learns too late that the girls he was peeping on were old women with one punching him in the eye.
It sometimes inflicts Darkness, so defeat it quickly using normal attacks or any elemental magic.