"Virtual reality needs its arcade moment," argues Zero Latency co-founder Tim Ruse. The Oculus Rift headset may be making waves around the tech sphere and zeroing in on a takeover of home entertainment, but to really experience immersion, the Melbourne-based startup aims to prove you need to add full-body motion tracking and a big space that players can move around in. No wires, no gamepads, no treadmills.