Sonic made Cameo Appearances in several Anime.

https://youtu.be/AqMjfjySzys

Did Sonic Colors use the Hedgehog Engine?

https://youtu.be/m9L_hUkF1e4

A bit on Sonic Rush's Development https://youtu.be/xVS3g3JjJeQ

Why Super Sonic can't use insta-shield in Sonic 3 https://www.youtube.com/watch?v=ywsg2fyhQnM

Old No More Robots Level Prototype

Keep spinning

High Level Overview of Classic Sonic Physics https://www.youtube.com/watch?v=SUmqMixephg

360 movement in Godot migrating from Unity

Fun & Insightful Tweets from Naoto Ohshima, Sonic's creator. https://youtu.be/fpfrfcIqx1A

Doctor Galianna, specializing in electronics. Dug up & revived Relic the Last Robot. She'll be a very important character in No More Robots!