Cool visual style, clear mechanics, interesting idea ... five minutes long. Tops. This is the kind of concept that needs to have dozens and dozens of levels. What's here is a sampling of what a full experience could be. None of what's presented is challenging or particularly thought-provoking.
This is one of those frustrating experiences where you've got a creative mind that has a good idea, and makes a thumbnail out of it. There needs to be more to this game. A lot more.