Australian PC World article Players wear the headphones, plus sensors on their upper arm, wrist, and the mallet used to swat at the virtual bees. The game was developed as part of a doctoral project by Makoto Ohuchi at a university north of Tokyo, and is intended as a training aid for the visually impaired. It will be commercialized, but not for the normal gamer market. It is expected to cost thousands of dollars and be used at rehabilitation centers. There are plenty of computer games you can play without sound, but very few you can play without sight, so I'm glad to see this research take another step in that direction.