I don't see how this is selling out. Something kids care about is being used to promote math and science (and perhaps even help them understand it, in the case

I don't see how this is selling out. Something kids care about is being used to promote math and science (and perhaps even help them understand it, in the case of gravity). He even says, quite directly, "learn math and science and get a neat job, like me" (or something to that effect). I can't help but see this as a good thing. Especially when this is a physics based videogame where you learn to explore different solutions, test and refine your hypothesis, assess the stability of structures ... Not too bad in itself. Also, he seems to have a really stuffy nose. Is that a zero gravity thing?