After fighting dumb concurrency issues all weekend I'm going to call it. The resulting code works quite well (despite being more convoluted than a Kojima plotline), but it almost entirely lacks features that make it a game. You can't do anything but move the camera and admire that the nothing that you can do is at a pretty solid 60fps (occasional stutter due to GC though). I don't plan on uploading anything, though I may work on it for a while longer to get a real game out of it. Maybe I can trick people into reviewing it some other time.