Google’s Cool Psych Music Cube
Yes, it’s called The Cube. At the moment, it doesn’t have any real purpose other than to explore the idea of interactive storytelling. While you should go here to experiment with the thing, you can also see what happens when you use your cursor in this embeddable version. (If you get tired of the autoplay, click on the three parallel lines in the upper left-hand corner and hit the pause button.) The full story at TechCrunch.