Super Mario Party Jamboree has a large number of game modes, most of which can be played online with up to eight players. In certain game modes, such as Koopathalon, you can also play them.
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While you can start a party and play with random players, this is a Mario Party game. And what's a Mario Party game without your real-life friends? You can create lobbies to play with your friends in the many modes around the world, as long as you complete specific actions first. It's pretty simple once you know what you're doing, but Nintendo does a painful job of teaching players what they need to do to set up their first match.
It may be annoying, but we can correct Nintendo's mistakes here and show you how to play online matches with friends.
There are two ways to create or engage in online matches with friends in Super Mario Jamboree. Both of these are handled in the Party Plaza section.