I've always loved the design for Sonic in the Sonic Riders opening video. Despite never playing the game, I've seen the opening and in my opinion the design of Sonic is the best design of Modern Sonic. It looks like Sonic is fully grown, like he is in his late 20's to early 30's. So, I want to see what this would like in Mania.
To those working on this: It does NOT have to be in the Riders intro artstyle. Mania's style would probably look better anyways. This should be sprite based, not art style based.