This article's subject exists primarily or exclusively within the IDW Publishing continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
The Black Arms are creatures mentioned in the Sonic the Hedgehog comic series and its spin-offs published by IDW Publishing. It is a villanous species of aliens who once tried to invade the world.
Not too long ago, the Black Arms invaded the world. However, these invaders were fought off by the unified forces of Sonic the Hedgehog, his allies, and even Dr. Eggman and his empire.