If I made video games

I would connect a treadmill to an Xbox 360 and then make a new way of use you treadmill and connect with people at the same time. Then you would be able to run marathons online on Xbox Live with your friends, train together in a group, meet new training companions or just battle against the game itself. There is a lot of video games out there who encourages exercising but this would be the ultimate way of training.