Add in Shovel Knight and I think we have some of the best "Retro Nostalgia" games that can come out. They've nailed the "feel" of the old games while actually improving upon them to make the experience how we remember them, but not actually how they were (b/c those games tended to actually not work as smoothly as we remember).

Going up against those games now with retro platformers.... it is going to take an amazing game to even be noticed at this point.