is a platform video game developed and published by Nintendo for the Nintendo DS. It was first released in May 2006 in North America and Japan, and in PAL regions on June 2006. It is the first installment in the New Super Mario Bros. subseries of the Super Mario franchise, and follows Mario as he fights his way through Bowser's henchmen to rescue Princess Peach. Mario has access to several power-ups that help him complete his quest, including the Super Mushroom, the Fire Flower, and the Super Star, each giving him unique abilities. While traveling through eight worlds with more than 80 levels, Mario must defeat Bowser Jr. and Bowser before saving Princess Peach. New Super Mario Bros. was commercially successful and received positive reviews; praise went towards the game's improvements made to the Mario franchise and faithfulness to older Mario games, while criticism was targeted at its low difficulty level and many critics noted its similarity to previous games. It sold over 30 million copies worldwide, making it the best-selling game for the Nintendo DS and one of the best-selling video games of all time. The game's success led to a line of sequels released for the Wii, Nintendo 3DS, Wii U, and Nintendo Switch. Gameplay New Super Mario Bros. is a side-scrolling video game. While the game is seen in 2D, most of the characters and objects are 3D polygonal renderings on 2D backgrounds, resulting in a 2.5D effect that visually simulates 3D computer graphics. The player can play as either Mario, or his younger brother, Luigi. Similar to previous Mario games, Mario and Luigi can jump, crouch, collect coins, stomp on enemies, and break open blocks. Moves from 3D Mario games reappear in New Super Mario Bros., including the ground pound, triple jump, and wall jump. Enemies from previous games, such as Boos, are also reintroduced. Between eight and twelve levels are available in each of eight worlds in New Super Mario Bros., which are shown on the Nintendo DS's bottom touch screen while the player is viewing the world map in the game. The map of the currently selected world appears on the top screen, which is used to navigate between the world's levels. The goal of each level is to reach a black flag at the end of the level. At the end of each world, a boss must be defeated before proceeding to the