<Tr> <Th> Genre (s) </Th> <Td> Platforming </Td> </Tr> <Tr> <Th> Mode (s) </Th> <Td> Single - player, multiplayer </Td> </Tr> <P> New Super Mario Bros. Wii is a 2009 side - scrolling platform video game developed and published by Nintendo for the Wii . A sequel to New Super Mario Bros., the game was released worldwide in November 2009, and in Japan the following month . A high - definition remastered port for the Nvidia Shield TV was released exclusively in China in December 2017 . </P> <P> The game's plot is similar to other side - scrolling Super Mario games . The player controls Mario as he travels eight worlds and fights Bowser's henchmen to rescue Princess Peach . New Super Mario Bros. Wii is the first Super Mario game to feature simultaneous multiplayer gameplay; up to four people can play simultaneously in cooperative and competitive multiplayer modes . The game also introduces "Super Guide", which allows the player to watch a computer - controlled character complete a level . </P>

When was new super mario bros wii made