Zen meets Wii

Wii Fit has worked its way to the top of the Japanese software sales charts. In its second week, the new title, which comes packaged with the Wii Balance Board, hit 150,000 sales, according to GamaSutra.

According to the Nintendo website, the board can be used for "an extensive array of fun and dynamic activities, including aerobics, yoga, muscle stretches and games."

After the workout, players can talk and compare results on a new online channel on the Wii Menu.