Robobird

Robo Birds (ロボバード, Robo Bādo) are enemies found in the Game Boy Advance game Wario Land 4. As their name imply, the species is a robotic bird. It only appears in the Hard and S-Hard modes of the game. Robo Bird is blue-gray and has a drill for a nose. Robo Bird flies in a straight line (and even through walls) with its jet pack. Robo Bird can only be defeated by a ground pound to the head by Wario. Robo Birds only appear in the Ruby Passage.