Nintendo president Satoru Iwata has tweeted that 600,000 copies of Animal Crossing: New Leaf has been shipped in Japan in its opening weekend. The game is already sold out in many retail locations and Nintendo will ship another 200,000 copies later this week in order to meet demand.
Iwata also tweeted that there have been about 200,000 digital purchases of the game on the 3DS eShop. However a high amount of these were sold from cards at retailers.
The game is also the biggest debut for the 3DS in Japan by a good margin, even if you don't count digital sales. Monster Hunter 3G held the previous record in Japan with sales of 525,827 in its opening week in December 2011, according to VGChartz sales figures. Also Dragon Quest Monsters: Terry's Wonderland 3D sold 515,176 units in its opening week in Japan.
The game was released on November 8 in Japan and will release in the first half 2013 in North America.