Mortal Kombat 11 is the highest selling Switch game of April NPD.
This is the first time an M-rated third party title has done this on a Nintendo system since RE4 on the Gamecube in 2005.
https://nintendosoup.com/its-been-14-years-since-a-3rd-party-m-rated-game-was-1-on-a-nintendo-console/