Depends whether you're including Wii U or Switch in "this gen" you're referring to.
If Wii U, then Splatoon.
Such a Fresh (har har) experience from its elegant and wonderfully kinetic gameplay, to its post-apocalyptic-ruin-meets-colourful-skater-pop style, to its memorable off-beat characters, it's just brimming with charm and feels incredible to play.
Last edited by curl-6 - on 23 January 2020