- You may be looking for Bat Brain or Bombat from Sonic the Hedgehog (1991) or Sonic Rivals 2, respectively.
Batbot (バットボット), renamed Halogen (ハロゲン) in Japan, is a Badnik that appears in Carnival Night Zone in Sonic the Hedgehog 3 for the Sega Mega Drive. It also appears in Sonic Blast, Sonic the Hedgehog 4, and the DS version of Sonic Colors. It resembles a bat with a lightbulb on its underside and neon wings.
Sonic 4 Website info
Batbot first appeared in Carnival Night Zone and returns in Sonic the Hedgehog 4. Be careful as Batbot chases after Sonic with his deadly lightbulb!
Batbot waits in one position, mimicking a neon sign amongst its colorful surroundings. When it spots the player, it flies around them in circles. Touching its lightbulb causes the player to take damage. Batbot can only be attacked on its head. It will return to its original position if the player moves far enough away.