The Wii U witnessed its biggest month of sales in December in the US.
Total hardware sales in 2014 were up by more than 29% over sales in 2013, according to the NPD Group.
In addition, Mario Kart 8 and Super Smash Bros for Wii U sold over 1.7 million physical and digital units and 1.3 million physical and digital units, respectively, in 2014 in the US.
Meanwhile, Nintendo says that total sales of its amiibo figures in 2014 are nearly twice the sales of Super Smash Bros for Wii U.
"Wii U had its strongest year yet thanks to the highly anticipated software lineup and the introduction of the amiibo platform," said Nintendo of America executive Scott Moffitt.
"Fans can anticipate another strong year for 2015, especially with more highly anticipated games like Splatoon and The Legend of Zelda: Majora's Mask 3D, as well as New Nintendo 3DS XL, arriving in the first half of 2015."
What to Read Next
The latest Nintendo Direct aired earlier this week and revealed that the New 3DS, 3DS XL and Zelda: Majora's Mask 3D will all launch on the same day, February 13.
Watch a trailer for the Wii U-exclusive Mario Kart 8 below:
