tbone51 on 13 February 2014
So based on Nintendo's PR.
"Nintendo reports that Wii U software sales increased by 16% over January of last year. Pokemon X and Y sold more than 125,000 combined units in the US in January, bringing their total sales to more than 3.25 million in the United States. US Super Mario 3D World sales reached 655,000 in January, and The Legend of Zelda: A Link Between Worlds sales hit 715,000."
