I love the music box :D It's one of my favorite instruments! It's my favorite tuned percussion at least, if you can even call it that. This is some great video game music though. I can see it in a survival challenge of some sorts. But the atmosphere it creates is really awesome. Again, music boxes=awesome. I want to add SOME sort of feedback how this could improve, so IF I MUST say something, I would say that you should have a bit more variety with your chord progressions. The melody changes up plenty, but I think the song would be more awesome if you added in a chorus of some sort... or even a bridge, just something to break away from the main melody. I hope this all helped! Great work!