Mario's latest knocks Wii Fit off of the throne.
http://www.nintendoworldreport.com/newsArt.cfm?artid=22780
The weekly Japanese sales report published by ASCII Media Works lists New Super Mario Bros. Wii as selling 35,580 copies, right behind number-one seller Pokemon Ranger: Path of Light. What's notable about this sales tally is that it officially makes New Super Mario Bros. Wii the best-selling Wii title in Japan to date.
New Super Mario Bros. Wii has now sold approximately 3,495,000 copies in the territory, inching just ahead of previous record-holder Wii Fit, which sits at roughly 3,474,000 units sold.
New Super Mario Bros. Wii has been available in Japan since December 3 of last year.