(http://excite.co.jp/News/odd/00081178672502.html)

(http://www.4gamer.net/news.php?url=/patch/demo/choco/choco.shtml)

(http://mantanweb.mainichi.co.jp/web/2007/05/48.html)

(http://ayanami-rei.org/archives/2007/05/2007-05-07-000493.php)