It's been twenty years later, but this is a cute show! My little cousin loves it, too. It's kind of like the movie (from 2020) in some ways, and it's like Sonic Prime (from today) in other ways. I'm kind of new at watching this, so maybe I should keep going. Sonic and his friends look so cute in anime form, including Shadow (even though he's ragey).
If you're looking for a kid-friendly anime show, try this one! :D