Undertale was GOTY for me in 2015. I really do like it a lot, but after going through it again, I've noticed that once you know all the mechanics and plot twists, a lot of the impact of the story is lost. It's a fantastic game and definitely up there on a list of treasured games for me, but that's it's one solid flaw-- the game's true value lies in playing it blind. It's a bit of a shame that the impact of the narrative revolves around what is not known.

Just a minor fuss I have about it, now that I've returned to the game a year later. Such a great game though.