I admit that I was not very interested in this game at first. I didn't see how something so simple could be fun. To my surprise, it was quite enjoyable. I think it mostly works because the artwork is so good. I think it just seems to fit the theme of how you're in this tiny space. It's too bad you missed Halloween, but I guess all scary stuff isn't for that time.
It was good to see how each level expanded. I'm not quite sure what the purple flies do. I do admit it's kind of sad to see what looks like a vampire bat eating flies. Of course, this is probably more realistic. Then again, turning into a human at all means it's not supposed to be like that.