My friend and I have built a mobile video game that can be played on an exercise bike/elliptical. Using the camera we track micro-movements of the body and detect the speed of motion, and use head tracking for steering.
Currently the game is in prototype mode, and consists of trying to pass obstacles, collecting orbs and destroying enemies. Here is a link to a video of the playthrough: https://vimeo.com/189210575
If you would like to try the game out, you can register on our website: pelatra.com. You will get access to this specific prototype and all upcoming versions of the game.
Any feedback, questions or concerns would be very useful so please let us know what you think.