I've just realized that the majority of underrated gems that cross my mind are WiiU games xD. I think it's also an unnappreciated console, and I wish it could have sold more in order to expand its cataloge but, well... OT, these are some of them:
- TMS#FE best JRPG this gen by miles. But, hey, it's Atlus, they always deliver. Can't wait to see if Persona 5 will take that throne. It'd be a hard task, that's for sure.
- The Wonderful 101. I think it's a better hack n' slash than Bayonetta 1 (2 is still the king). I've read some criticisms about the controls, but it wasn't an issue for me. It didn't take much time to adjust.
- Paper Mario : Color Splash. Yeah, it doesnt't have bad reviews, but it was killed before release by Nintendo fans (myself included). It's not among the best of the franchise, but it's still an enjoyable and charming adventure, with a stellar writing and presentation.
- Star Fox : Zero. I enjoyed it a lot. Once I've mastered the controls, I came to appreciate what the developers had in mind. I was capable of pulling tricks that I simply couldn't do with a standard control scheme. So, yeah, I had a blast playing it.
- DK:Tropical Freeze. I know, underrated gem is a bit extreme maybe. But I honestly expected that the game was GOTY candidate, because it's one of the finest platformers ever crafted. And it kind of... went unnoticed. At least more than I wish. Definitely more than it deserves.
EDIT. Totally forget about Fatal Frame V. Best survival horror this gen. Fantastic atmosphere, full of geniunely creepy moments and, also, immersive controls. A bit outdated, and it could do with less backtracking, but it was everything that I was expecting.
I must say that despite the WiiU fail, I'll always remember these gems, because all of then were worth my time and money, and all of them were among my best gaming experiences this gen.
