The goggle screens completely cover your vision, meaning the only thing you can see are scary corridors and flying heads. Character movement works more traditionally however, with players using a controller to walk around and shoot, while the goggles function as a head-tracker. If it ever comes to market as a consumer product, or even if the maker kits are reasonably accessible, it sounds like the perfect thing for hardcore ArmA(armed assault) players or flight sim enthusiasts.