First Month sales US only. Nintendo will most likely give us total numbers if not NPD only covers its retail. But we all know Nintendo will brag...
For a comparison here ia the top of the top..
Predict sales
Best selling exclusive games on their 1st NPD month
1/ Halo 3 : 3.3 millions, September 2007
1/ Halo Reach : 3.3 millions, September 2010
3/ Halo 2 : 3.27 millions, November 2004
4/ Halo 4 : 3.2 millions, November 2012
4/ Pokemon Sun/Moon : ~3.2 millions (estimate), November 2016
6/ Super Smash Bros Brawl : 2.7 millions, March 2008
7/ Spiderman : 2.6+ millions, September 2018
8/ Pokemon Black & White : 2.5 millions, March 2008
9/ GTA San Andreas : 2.06 millions, October 2004
10/ God of War : 1.9 millions, April 2018