Well, it had to be done! Who needs Kinect when you've got a theremin! (OK, its not quite the same, but anyway...) http://www.thereminhero.com This is even more fun with two people playing! One person controls left/right, the other controls jump. Its not just limited to the theremin. Its even possible to hook up a microphone and use your voice to control the game! Or a guitar! Or a violin!
![Theremin controlled Mario](https://cdn-ak-scissors.b.st-hatena.com/image/square/42c3f993a67b438f088d1e7a484a769d6facac53/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2FYnZeI8uLJnw%2Fhqdefault.jpg)