Robobird

A Drill Bat is an enemy in the game Wario Land 4. Drill Bat is one of the most unique enemies in the game. Drill Bat is a flying near-human bat-like creature that appears in the Hard mode of the game. Drill Bat is blue-grey in color. Drill Bat has a slightly exposed brain and a drill for a nose. Drill Bat flies in a straight line (and even through walls) with its jet pack. Dill Bat can only be defeated by a stomp to the head by Wario. Drill Bat appears in the Ruby Passage.