Meteor Head

Meteor Heads are flying enemies which spawn when you enter a meteorite's crash site. 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, meaning they do not collide with solid blocks and can fly straight through them.

A suggested way of killing these is to use a Pickaxe such as a Nightmare Pickaxe or a Molten Pickaxe. While mining, you can hit the Heads while they fly at you, as long they're coming from one direction. Cobalt Shields will help you stand in place so you can mine the Meteor easier.

Meteor Heads will stop spawning once there are only 49 or fewer blocks of the meteorite left, usually about 10-20% of its total size.