Bomber Drone

The Bomber Drone is a drone that appears throughout the map, only appearing near the end of the map once you have escaped the Celestial.

Design
The Bomber Drone appears as a cylinder with red lights that produces bombs. (...)

Appearances
The Bomber Drone appears to be appearing to appear in many locations throughout the map.

Behaviour
The Bomber Drone is a ranged Drone which flies several blocks off the ground. When it sees a player, it will target the spot above said player and fly to it. Shortly after, it will spawn a creeper which will fall onto the player if they don't move. It will follow this attack cycle until it is defeated.

Strategy
Kill it before it sees you

Trivia

 * The Bomber Drone is likely not an invisible humanoid mob (such as a zombie) wearing its drone head and holding a drone arm on each hand.