Super Mario Bros. (スーパーマリオブラザーズ Sūpā Mario Burazāzu?) is a 1985 platform video game internally developed by Nintendo EAD and published by Nintendo as a pseudo-sequel to the 1983 game Mario Bros. It was originally released in Japan for the Family Computer on 13 September 1985, and later for the Nintendo Entertainment System in North America in 1985, Europe on 15 May 1987 and Australia in 1987. It is the first of the Super Mario series of games. In Super Mario Bros., the player controls Mario and in a two-player game, a second player controls Mario's brother Luigi as he travels through the Mushroom Kingdom in order to rescue Princess Toadstool from the antagonist Bowser.