Multiplayer VR is imperfect, especially on a large scale. Body tracking tends to be quite limited, so it's not uncommon to see generic animations and herky-jerky movements from your fellow players. OptiTrack hopes to fix that. It's launching body sensors that promise whole-body skeletal tracking in VR arcades and other multiplayer venues. Attach it to your hands and feet and you should get accurate positional tracking that reflects more natural movements, such as aiming a weapon or peeking around a corner.