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Sonic News Network
Sonic News Network

The smaller “baby” flees when the leader is smashed.

— Description, Sonic the Hedgehog Encyclo-speed-ia

Bugernaut[1] (ブンブーン[2] Bun-bun?) is an enemy that appears in the Sonic the Hedgehog series. It is a mass-produced, horsefly-based Badnik model created by Dr. Robotnik.


Based on the horsefly, Bugernauts have a small blue body with a pair of large superposition eyes, four big wings and a cylinder-shaped abdomen on their back.



In Sonic the Hedgehog 3 and the lock-on game Sonic the Hedgehog 3 & Knuckles, Bugernauts are found in Hydrocity Zone, and come in two sizes: a larger Bugernaut may be followed by a smaller one, but only the larger one can be destroyed. Bugernauts remain stationary above water surfaces, but will start buzzing around and charge at the playable characters when they approach them.

When the player defeats a larger Bugernaut by using a Spin Jump, the small Bugernaut becomes vulnerable and seeks out the nearest larger Bugernaut to follow it. If there are no large Bugernauts nearby, the smaller one flies away.

Powers and abilities

With their wings, the Bugernauts are capable of flight.

In other media

Sonic the Comic


  • The Bugernaut's name is a portmanteau of the words "Bug" and "Juggernaut".
  • The Bugernaut's Japanese name "Bun-bun" is Japanese for "Buzz".


  1. Sonic the Hedgehog 3 (Sega Genesis) United States instruction booklet, pg. 22.
  2. (in Japanese) ソニック・ザ・ヘッジホッグ3 公式ガイドブック. Shogakukan. 1 July 1994. p. 12. ISBN 978-4091024794.

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