http://afp.google.com/article/ALeqM5gMwDe1ovbiILhtf3JKM2Ez79rGvA "If you've ever played Brain Age, you've been well acquainted with Dr. Ryuta Kawashima's blocky, stoic face. What you may not know, however, is how much money the man has turned down as a result of the game's success. With 17 million copies of Brain Age sold worldwide since its release, Dr. Kawashima is due to earn $22 million (2.4 billion yen) in royalties. Surprisingly, he's refused to accept a single penny for himself. "Not a single yen has gone in my pocket," said the soft-spoken 48-year-old doctor with round-rim glasses. "Everyone in my family is mad at me but I tell them that if they want money, go out and earn it." According to the rules of Tohoku University, which employs Kawashima, he could accept half of the royalties as long as the remaining half is given to the school. The man is wholly dedicated to his research and work, though, and has never even entertained the notion of accepting the royalties for his 'hard work'. "To hear this may put you off -- but my hobby is work," " For him, though, his research and yearly salary of roughly $100,000 are more than enough."