|This object exists primarily within the Adventures of Sonic the Hedgehog continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
The Hedgehog Harpoon is a yellow gun with a lightning bolt on it. It shoots out a harpoon which is attached with a rope. Robotnik stored it aboard his Blimpnik, but when he used it for the first time he accidentally hit the blimp's gas bag, popping it and crashing the blimp.