This game reminds us all once again that Video Games are ART.
The meloncholy beauty expressed in this game is fabulous. It's not overly long (I finished the entire game in one 3-3.5 hour sitting) but it is full of stunning visuals and breathtaking music so you want to go back and relive some of the game again and again.
The gameplay is light puzzle-platforming, but really you're not there for a challenge, you're there because this game is just so damn beautiful and moving. An interactive piece of artwork.