I have the Japanese version of Rise of the Tyrants and I'm selling it on ebay. As of now, 5/4/2011 at 3:00pm it's only 30 cents.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270743154662&ssPageName=ADME:L:LCA:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270743154662&ssPageName=ADME:L:LCA:US:1123