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Users share their theories and opinions on why Shadow looks like Sonic in the Sonic the Hedgehog games. Some suggest it is based on a mural, others on a prophecy, and others on a coincidence or a design choice. Upon first meeting Shadow, the trio are shocked by Shadow's appearance, leading to Sonic questioning why they look alike.
www.thegamer.com
Both Shadow and Sonic are similar in their physical appearances, but while Sonic is recognizable by his blue fur, Shadow's fur is black with red stripes. Shadow is an anthropomorphic black hedgehog created by Professor Gerald Robotnik, the grandfather of Doctor Eggman. Shadow shares design traits and attributes with Sonic the Hedgehog.
screenrant.com
He is an antihero who has good intentions but will do whatever it takes to accomplish his goals, putting him at odds with Sonic. Shadow resembles a hedgehog because, during his early research for Project Shadow, Gerald stumbled across a mural on Angel Island, home of the legendary Master Emerald. This prophetic carving depicted Super Sonic in battle with Perfect Chaos, an event that would come to pass in Sonic Adventure.
comicbook.com
Gerald Robotnik modeled him after the depiction of Super Sonic defeating Perfect Chaos found in the Ancient Ruins. Back in the Adventure Era, Super Sonic's quills didn't stand completely up like they do in the current design so shape wise he and Shadow looked quite similar. Shadow's dark coloration could have something to do with having some of Black Doom's DNA.
www.deviantart.com
Why does Shadow look like Sonic? Shadow the Hedgehog's obvious resemblance to Sonic might lead some to believe that the character is an evil clone of Sega's fast-paced mascot. Shadow is the result of genetic experimentation, but he's got nothing to do with Sonic and their resemblance is merely coincidental. At first glance, Shadow may just look like Sonic's sinister doppelgänger but there are a plethora of nuanced differences between these two.
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10 Best Playable Sonic Characters, Ranked 10 Shadow Is The Creation Of Genetic Experiments Gerald Robotnik and Black Doom create Shadow in Shadow the Hedgehog. Shadow and Sonic are both hedgehogs, but they have different colors, eyes, and personalities. Learn how their similarities and differences contribute to their roles in the Sonic the Hedgehog franchise.
Why does Shadow resemble Sonic? Shadow is the result of genetic experimentation, but he's got nothing to do with Sonic and their resemblance is merely coincidental. Shadow the Hedgehog is Dr. Gerald Robotnik's crowning achievement and the result of his volatile alliance with an alien lifeform called Black Doom.
Users of r/SonicTheHedgehog subreddit share their opinions on why people say Sonic and Shadow look alike. They cite plot, design, color, and gameplay differences as reasons for the confusion.