I knew before I started reading Megatokyo that Japan is an – uhm – interesting country. And it gets more interesting all the time:
The booth can accommodate up to three people so you can shoot Prikura style video clips with your friends. Inside the booth is a fluffy thing called a MYSQ ring, you wear it on your hand. A camera detects the movement of your MYSQ ring. Also, floor sensors detect your foot movement. So, the system can control video effects based on your (and your friends’) hand/foot movement.