(Jyri Jokinen, 19.09.2006 - 00:00) Originally, Mind Quiz has been a handheld unit exclusive use launched by Segatoys in Japan. It became 200,000-unit hit hardware in Japan. The editorial supervisor is Dr. Ryuta Kawashima, whose books sold over 2 million copies in Japan as well. The PSP game introduces exercises of brain rejuvenating program at a school utilizing blackboard. Questions are based on his books, considering the characteristics of PSP's 4 buttons.