Smash is second only to Splatoon2 in overall physical sales for a Nintendo Game
The amazing thing is that the first not Nintendo game (except pokemon) is edited by... Microsoft in japan
Smash is the best selling gamee in 2018. First game edited by Nintendo since Mario Kart 7 in 2011.
MK7 was "first" only because Monster Hunter Portable 3 (PSP) had 2 versions (one cheaper but exactly the same) that were counted separately.
So the last real game edited by Nintendo to sell the best in a year was Wii Sport in 2007.
The source is this guy:
Le top Famitsu (physique) des meilleures ventes de la dernière semaine de 2018 au Japon. pic.twitter.com/1RR9FE7G0c
— Oscar Lemaire (@oscarlemaire) January 9, 2019
He posts very interesting charts for the gamig industry