I've never played the game myself, but I have watched it through the eyes of multiple youtubers. Its an awesome game in the respect that other game-developers work on making the outside of the game look the best, with their great graphics and beautiful scenery. Those only show how great the game is skin deep. In Undertale, Toby Fox works on making the game itself great in its own aspect. There are multiple endings to the game, more than just two (pacifist and genocide); and there are tiny easter eggs here and there that record what you do and the game will remember it, regardless of whether you exit the game or not. But that isn't the half of it. The story line is the best part. Its so in-depth. I suggest that if you do decide to play this game, play pacifist first (which is sparing everything and having mercy towards all) before playing genocide (killing everything in your path). So, if you do decide to get this game, I promise that if you really get into the story you will not regret it.