http://www.newegg.com/Product/Product.aspx?Item=N82E16874103036
I applogize in advance if this has already been posted.
Otheriwse, for whatever it is worth, here is the average at GameRankings:
http://www.gamerankings.com/htmlpages2/932328.asp?q=Viva%20Pinata
85.5%