Which is what I'm saying. Take for example Mario, yeah some might say that Nintendo is milking the franchise, but at least there are quality releases being put out. We can all probably agree Mario has had maybe about 85% of his games being quality releases with the rest being okay or meh at best.
Now Sonic? forget the ratio is terrible. In my opinion I can say out of every Sonic game released so far there's probably about maybe 15% of his games worth playing and that's me being generous.
the problem is that sonic tries too hard to experiment. mario, in terms of it's basic fundamentals, hasn't changed at all since the first one on the NES, and look at how successful and consistent the mario franchise is
but sonic tries to add loads of new things that drastically affect gameplay, including, but not limited to:
a dumb werewolf mechanic (unleashed)
a motion control gimmick that barely functions with sonic's playstyle (secret rings)
hub worlds that have nothing of substance and only contain pointless missions that give you the money to buy parts of the game (sonic 06)
the entirety of sonic boom
and other examples I may have missed out.
not saying that sonic should play exactly like he should back in the genesis days, no, there's nothing wrong with freshening up the game experience with some new things. but for now, sega really should just play it safe and stick to the colors/generations formula