In this demo called HydraDeck, the player has to physically dodge and take cover from enemy fire. The author also claims that there is very little motion sickness involved.
via N4G: pc news feed http://n4g.com/news/1321188/check-out-hydradeck-the-ultimate-vr-experience-oculus-rift-hydra
via N4G: pc news feed http://n4g.com/news/1321188/check-out-hydradeck-the-ultimate-vr-experience-oculus-rift-hydra