The next Special Battle for the Nintendo Switch Online exclusive "Super Mario Bros. 35" (only available until March 31st, 2021) has been announced. Dubbed as "Showdown! Bowser's Castle Battle", the following courses will be featured in the event: 1-1, 1-4, 2-1, 2-4, 3-1, 3-4, 4-1, and 4-4. Take advantage of the Course Practice mode to prepare yourself for when the Special Battle begins on Friday, November 6th, 2020 at 9:00 CET. It will be taking place up until Monday, November 9th, 2020 at 8:59 CET.