http://www.nintendo.co.jp/n08/rzwj/index.html
as if the first installment wasnt fun enough (tho the intl version was censored and even told you what to do.. boring compared to the jpn release.)
here comes one of 2 sequels (a ds version with different games is coming out) guarenteed to make even more ppl stare at you, as this time theres a motion sensor so you get to twist n turn whilse commuting :P