Super Mario Bros. 3 is a platform game developed and published by Nintendo for the Nintendo Entertainment System (NES). It was released in Japan on October 23, 1988 and in North America on February 12, 1990.

Players control plumbers Mario or Luigi, who must save Princess Toadstool and the rulers of seven different kingdoms from the antagonist Bowser. As in previous Mario games, they defeat enemies by stomping them or using items that bestow magical powers; they also have new abilities, including flight or sliding down slopes. Super Mario Bros. 3 introduces many elements that became Mario series staples, such as Bowser's children (the Koopalings) and a world map to transition between levels.