Meteor Head

Flying enemy which spawns when you enter a Meteorite "biome" (the impact site of a meteorite). They usually spawn in packs of 3-5 and will override other enemies in the area, meaning that no other enemies will spawn as long as there are meteor heads around. Meteor Heads follow typical Flying AI with an override exception.

Meteor heads stop spawning once 80-90% of the meteorite is mined out.