So, somewhat recently, I was under the impression that Classic Sonic didn't have shoe buckles, but I just learned that he does. Now, every Mandela Effect has a reason behind it (for example, some people might think Benny from Dora has a nose ring, since bulls are typically depicted with them), so my theory as to why I had this false thought is because he doesn't have shoe buckles in the cartoons, and I was just thinking of that design.
In summary...
THE MANDELA EFFECT IS WEIRD!! 🤪