lol Nintendo
https://www.nintendoworldreport.com...n-super-mario-maker-2-limited-to-randoms-only
The addition of online multiplayer in Super Mario Maker 2 comes with a major caveat according to a Nintendo representative at a press event last week: you can only play with random players online, whether you’re seeking out co-op or competitive play. The only way to play multiplayer specifically with friends is through one system or local wireless play.