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 is an object that appears in the Sonic the Hedgehog television series. It is a green balloon that acts as an explosive.
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.