You MUST have a Nintendo Switch Online subscription to be active in order to play online.
Like the controller method, one can allow a player to use the Switch's individual Joy-Cons or other controllers for another player to play.For players that are playing via Nintendo Switch:.For those who have a copy of Just Shapes & Beats on Steam, go to Challenge and select one of the multiplayer options in the game (either with random players, with a set of players or with friends).One can connect a controller to the PC, this will allow another player to join the game's lobby.Multiplayer can be accessed by the following ways:
