http://www.youtube.com/watch?v=n1XvPaQXFIU if you pause at 0:36 you get the best look at it and it also looks like there is some kind of famiclone or dendy too.
meh I like it how people use to notice smallest details (kind of reminds me of this one: http://www.youtube.com/watch?v=PCERaUBHoe0)