Meet Cyber Figure Alice, for all your otaku needs.

Actually I think this is a pretty impressive example of virtual interaction and augmented reality. It reminds me of a flash project that ran along the same lines I saw a third year student present for their final presentation; in which they used black and white shapes to trigger an animation on the screen. Different combinations of shapes made different animations. This seems to work on a similar idea, but it works through a webcam rather than a projector, meaning you can run the programme from your desk at home.