Many thanks to Kiyoshi Shin for the first review of A Theory of Fun in Japan!

• Review in Japanese
• Translated with Google

Looks like you can pick the book up at Amazon.jp and at O’Reilly Japan.

Gotta Love Google translation, btw:

You think in the one which has interest in game design theory whether it was added new necessary book-reading. Furthermore, the place, Japanese, is grateful after all don’t you think? is. He the プレゼン chaos is good, it is is, it is the book to which the atmosphere is transmitted that way (new)