Nintendo is making sure Super Mario Maker 2 fans get to enjoy the 35th anniversary of Super Mario Bros. with a special "Hack'n Time Attack" event, and it starts in Japan on Nov. 18th, 2020. Players will be asked to speed through a custom course made by Nintendo to try and get the fastest time possible. 300 people who participate in the event will win a premium medal, which you can see above. 100 people who get the best times will win the medal, and then 200 random participants who cleared the course will win a medal as well.
Along with that, Nintendo has made a special auto-run course to celebrate Super Mario Bros' 35th anniversary. You don't have to move at all to complete this course, which will take you through another custom course made by Nintendo. Of course, you can stop and have a look around if you'd like.