Konami showed Otoizm at the Tokyo Toy Forum, then released it in June 2006 . This pet needs to be fed music. You basically wire it in series with your MP3 Player and the pet grows according to what kind of music you feed it (it classifies music into 19 types). The entire system is enclosed in a Yo-Yo that also includes a special clip to hook to your back pocket. If your friend has one, your pets can “dance” together. Plus you can record your friend’s voice and a new pet named Kotobaizm, shows up.