Co-op play in Super Mario Maker 2 is supported in three different modes, which have been improved with update 1.1.0.
Build Mode - In the Build Mode, two players on the same system (couch co-op) can work side-by-side to create a course on a single screen. Each player will need to use a Joy-Con controller for this.
Downloaded Courses - You can download any course made by the community from the Course World and play through it with up four players locally on the same system (couch co-op). Each player will need to use a Joy-Con or Pro controller for this.
Course World - You can play other players' custom level creations in the Course World mode locally, online, or via LAN. To play courses locally on your couch, simply locate the course you wish to play and then choose "Play Together." To play online or via LAN, within the "Network Play" section of Course World, there are two different co-op options: Global Play (online) and Nearby Play (local wireless LAN).
Mario fans of the world, unite! Now you can play, create, and share the side-scrolling Super Mario courses of your dreams in the Super Mario Maker 2 game! Dive into the single-player Story Mode and play built-in courses to rebuild Princess Peach’s castle. Make your own courses, alone or together. And with a Nintendo Switch Online membership, share your courses, access a near-endless supply made by others, enjoy online multiplayer, and more!
This page contains co-op info for Super Mario Maker 2 on the Nintendo Switch. All information about Super Mario Maker 2 was correct at the time of posting. Information is subject to change. If you see any errors please email us.