According to UK retailer Woolworths, Wii Fit has been selling 90 copies for each minute that passes by. A good number of people also waited outside the store in the morning to be one of the first to purchase the game. Although not every store has sold out of copies, it is expected that many stores will run out of stock as soon as today. Wii Fit launched in Europe just a few hours ago, and has already been released in Japan. American gamers can get their hands on a copy on May 19th.