On the surface, Sonic the Hedgehog’s famous redesign is what catapulted the movies to success, but it was actually something much deeper that made everyone love him.
Sonic the Hedgehog: The Major Character Change That Saved the Movies, sonic movie 1
The 12 Best Sonic Characters in the Series, Ranked - IGN
How Sonic The Hedgehog Movie Changed After The CGI Redesign
New 'Sonic the Hedgehog' redesign actually works. Here's why. - The Washington Post
How 'Sonic the Hedgehog' Marketing Went From False Start to Reboot – The Hollywood Reporter
Sonic The Hedgehog 2 Review – Hogan Reviews
Discussion) how would YOU Soft reboot the Sonic franchise? : r/SonicTheHedgehog
Sonic the Werehog, Sonic Wiki Zone
Sonic the Hedgehog 2 Easter Eggs and Reference Guide