SourceIf Mario can surf barefoot, why can't Sonic?
Mario is comfortable dipping his naked toes in the ocean, but Sonic seems to have no interest in removing his classic red-and-white sneakers before he gets on his surfboard. Now, it makes sense that Mario and his corporate parent would let the plumber's feet loose here; after all, Nintendo allowed a shirtless, shoeless, sockless Mario to prance around on a beach in Super Mario Odyssey.
Not so for Sega. Even when Sonic turned into a "werehog" in 2008's Sonic Unleashed, he didn't Hulk out of his shoes — the sneakers just became cleats. However, Sonic's feet have shown up in the Archie Comics series and in multiple cartoons, including the '90s animated series Adventures of Sonic the Hedgehog. (It's unclear if we'll get to see Sonic's feet in the redesigned Sonic the Hedgehog movie.)
Update: Sega has responded to Polygon's request for comment. According to veteran Sonic the Hedgehog game producer Takashi Iizuka, "Sonic doesn't take off his shoes (in canon)" — which only leads to additional questions.
Free sonic toes!