Waste of a talent; Operate Puzzle & Dragons using ass

Puzzle & Dragons is a Gungho's popular mobile game. It passed 39 million downloading in Japan and passed 9 million downloading in North America. However, a certain Japanese developer developed the system which could play it with buttocks. It is so to speak "Buttocks & Dragons".

This is the motion system which can operate a puzzle panel by moving buttocks(Probably he uses Kinect). He projects his figure on the camera and play Puzzle & Dragons by letting it recognize the position of buttocks. He wore black tights to raise the recognition precision of buttocks. He developed it to show this as entertainment of the year-end party. He is surely a superior developer. The video is here.