Sound like a good idea, well SEGA developer Yu Suzuki thinks it is.

In Medicine, you have artificial heart devices, or people that have some sort of chips in their bodies, to be able to keep track of vital signs. So, it doesn’t have to be a scary thing, but you could put a sensor here (points to his arm). You know, a bit like in The Matrix.

It’s not really something only in the future, some people already have them, chips in their bodies. If for some that would be a bit too scary, then you could also do something more simple, like using wristbands or a pendant. So using devices like these for sensing would be good I think. I think that for arcades games I want something that’s a bit futuristic.

A chip in your body that senses the motion of your body…kida freaky…..but AWESOME!!

Link