I'm not stupid to think that.
Garry's Mod didn't need a special program, just the game, a Kinect for Windows, enough room, movement abilities and a ragdoll. Oh and don't forget a computer.
Please add motion capture (Mocap)! With that, it would be much easier to to animations and it would be funnier too!
Take Garry's Mod for example. You can use the Kinect to control a ragdoll with your body!
https://www.youtube.com/watch?v=cKDRcHab6mc
That video shows Garry playing around with the Kinect on GMod.
It could be the same thing in MI, only that you control a Steve/Alex character instead.