Sonic SatAM Logo
This article's subject exists primarily or exclusively within the SatAM continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

The Metal-eating Balloon[1] is an object that appears in the Sonic the Hedgehog television series. It is a metal-eating, chemical weapon used by the Freedom Fighters.


The Metal-eating Balloons are ordinary-looking green balloons filled with a liquid that is highly corrosive to metal. When thrown, one such balloon will explode upon contact and release green gas. This gas will dissolve any metal down to nothingness.[1]


The Metal-eating Balloons were created by Rotor Walrus in preparation for the Doomsday Project. One such balloon was used by Sonic the Hedgehog to destroy one of Dr. Robotnik's Doomsday Pods.[1]


  1. 1.0 1.1 1.2 Hurst, Ben (3 December 1994). "The Doomsday Project". Sonic the Hedgehog. Season 2. Episode 26. ABC.
Community content is available under CC-BY-SA unless otherwise noted.