Over 500,000 copies of Wii Sports Resort were sold in the US during the game's first eight days on sale, according to Nintendo figures.
The game, which comes packaged with the new Wii MotionPlus accessory, reached the landmark figure on August 3, eight days after its US launch on July 26.
"Through Monday we sold one copy of Wii Sports Resort roughly every 1.5 seconds continuously since it launched in the United States," said Cammie Dunaway, Nintendo of Americas executive VP of sales & marketing. "This tells us consumers were eagerly waiting to get their hands on these fun activities, and it's a great start for a game that will have long-lasting appeal."
Since being released in the UK on July 24, the game has been at the top of the all-format chart with second week sales growing on first week ones by six per cent.