>> the more we work together, the better it does. >> were we supposed to hit those things? >> it's loose. we can hit whatever we want. let's jump at the top. beautiful. and jump again. you can see us tracking our full bodies. >> if we do nothing, what happens? >> we run into stuff. >> you stop controlling the game if you stop moving. >> there's a little thing attached to the xbox? >> there's a sensor tracking you in 3-d. >> that's what happens, you start hitting rocks. >> that's incredible. let me bring in the incubatore. >> the director of incue bags. i love that title. you can talk while i get used to this thing. you created this. where did you come up with this?