More a piece of art than a game.
You walk through a dream world, having to find the way to your teddy, removing obstacles and opening doors on the way. The riddles are relatively simple, but they are not the main point - it is really more an electronic piece of art. As such, there is no direct communication, no direct tasks to finish (apart from getting to the teddy), and you will always keep wondering what is the meaning of everything.
If you ask me, it is a nice piece of art and I enjoyed it, but it is really just for one (though long) evening. Like going to a gallery.