List of best-selling video games - Wikipedia
en.wikipedia.org
if I'm nintendo I'm looking real good right now.
Other switch games on the top 50 best selling list are: Super Mario Odyssey, Pokemon Sword/Shield, Smash Ultimate, and Breath of the wild... wow!
EDIT/DISCLAIMER: I meant to put Mario kart 8 + deluxe in the title but I cannot change it. Just want to make it clear, it's both versions, kinda like GTA V on PS3/PS4/Xbox360/XboxOne are all combined