The biggest Mario Party yet, Super Mario Party Jamboree launches on Nintendo Switch October 17th! Take on over 110 minigames, 7 game boards (5 new boards and 2 returning boards), and join up to 20 players head-to-head online in Koopathlon mode! The biggest Mario Party yet, Super Mario Party Jamboree launches on Nintendo Switch October 17th! Take on over 110 minigames, 7 game boards (5 new boards and 2 returning boards), and join up to 20 players head-to-head online in Koopathlon mode!