When Sonic did the "planet gravity" thing in Sonic Adventure 2, people called it the worst level in the game. When Mario did the "planet gravity" thing in Super Mario Galaxy, people called it the best game ever.
This comic made me realize sonic never uses his lower eyelid ever. Like if sonic squints it is always his upper eyelid that comes all the way down. Looks so werid for him to use it.
Yeah you did that stuff first, Sonic-oh, but you did them... hm... crappily :P the ideas were there - but the implementation? Yeah... Nintendo isn't known for new ideas; it's known for taking old ideas and other peoples ideas and making them 100% more enjoyable and functional.
Let's not forget how he stole F-Zero's anti-gravity racing in Mario Kart 8, or how people are praising Mario+Rabbids as being just as, if not better, than X-Com.
Nope, next thing Sonic needs to do is have a new game come out that's actually fun to play. And no, Sonic Mania doesn't count, that's a fan game that got formal approval.