In a world where the Earth got shrink rayed and there is no room to exercise, people are mad that they can't get in shape. So there is The Virtual Reality walking machine where you can get a workout and play video games. 

Our idea was with this machine and wearing a VR (virtual reality) headset you can walk on our machine, while playing video games . You're held up on a harness so you don't fall off it. You will be walking on pedals with a turning mechanic.The way we achieved the walking and turning was with a sensor that reads a black and white strip to tell if your turning left or right. But we weren't able to get the walking system to work because even though you were held up on harness that holds your weight, When you walk the pedals still couldn't handle the pressure. We also planned on getting it to work with a VR headset called google cardboard which is a VR made out of cardboard, though thats a whole other thing of coding. The turning worked and we were able to make a little game just to show how it works. I believe if we had another two days we could complete it.

We made a lot of prototypes and models, about five I would say. What changed the most was how it looked, and how we could turn or walk on it.