Super Mario Maker 2 players can add sounds effects to levels within Course Maker by pressing the Sound Effects button found in the upper-left area of the screen.

33; JaxonH; Thu 16th May 2019 @Tim_Vreeland The article put a note at the end admitting that yes, it was just an effect. That was done after the fact. Had you read the article, you'd see they ...

There’s plenty to hear in Super Mario Maker 2, and even more if the various sound effects and music is used! Next time you’re building a course, remember to drop in a few sound effects or ...