While it could be treated as an April Fools' joke, there's actually a murder mystery visual novel game about Sonic the Hedgehog. The Murder of Sonic the Hedgehog (yes, murder!) dropped today on Steam for the PC and Mac. Sega drops the free point-and-click adventure where the Sonic cast find themselves on a murder mystery party aboard the Mirage Express to celebrate Amy Rose's birthday. But then Sonic ends up, well, dead. If you're a Sonic fan, this might be a fun game to try!