Bubbles is a third-generation Badnik created by Dr. Eggman which has appeared in Sonic the Hedgehog 3 and Sonic the Hedgehog 4: Episode 1. It has a spherical body and a cylindrical head, and hovers around in the air. It appears to be harmless, but will periodically release spikes from within its body. Its appearance and ability are similar to the Pointdexter, though the Pointdexter only functions in water.