Demon Eye

The Demon Eye is a basic flying enemy that appears at night. Its trajectory is changed when hit with knockback. The Demon Eye drops coins, and occasionally a Lens or rarely a Black Lens, when killed. It has a slow turn rate, follows the player, and bounces off blocks. It uses Flying AI.

When killed a Demon Eye will commonly drop a lens. If your mana is not at full capacity it'll also occasionally drop a Mana Crystal.

Special Drops

 * They have a 33.33% chance to drop a Lens. (1:3 chance)
 * If they don't drop a Lens they have a 1% chance to drop Black Lens. (1:100 chance)
 * This makes the overall drop rate of Black Lens 0.67%. (1:150 chance)