Super Mario Bros. is a 1985 platform game developed and published by Nintendo for the Nintendo Entertainment System (NES). Directed and produced by Shigeru Miyamoto, it is the successor to the 1983 arcade game Mario Bros. and the first game in the Super Mario series. Players control Mario, or his brother Luigi in the multiplayer mode, to traverse the Mushroom Kingdom to rescue Princess Toadstool from King Koopa (later named Bowser). They traverse side-scrolling stages while avoiding hazards such as enemies and pits and collecting power-ups such as the Super Mushroom, Fire Flower and Starman.
Miyamoto and Takashi Tezuka designed Super Mario Bros. as a culmination of the team's experience working on Devil World and the side-scrollers Excitebike and Kung Fu. Miyamoto wanted to create a more colorful platform game with a scrolling screen and larger characters. The team designed the first level, World 1-1, as a tutorial for platform gameplay. Koji Kondo's soundtrack is one of the earliest in video games, making music a centerpiece of the design.