Maybe that it was a very good series, until Boom came along (at least in my perspective)? Maybe the series was running… uphill (get it? He runs slower when going uphill? :P) for awhile, but that’s about the point I would say it went into ruin, for me…
No, Knuckles was never intended to be the Incredible Hulk… LOL
Anyway, maybe the fact that there is no other game with similar physics that has gone on so long?
I understand. Fine, if I have to not make fan-games …
The other idea might not be like a Sonic game. I don’t know about using speed building (or at least loops) in that one.