What open source platform game was modeled after a Nintendo game released in 1985 that required players to rescue Princess Toadstool?
Super Mario Bros. Super Mario Bros. is a platform video game developed and published by Nintendo for the Nintendo Entertainment System home console. Released as a sequel to the 1983 game "Mario Bros.", "Super Mario Bros." was released in Japan and North America in 1985, and in Europe and Australia two years later. 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.
The Portopia Serial Murder Case The Portopia Serial Murder Incident (Japanese: ポートピア連続殺人事件 , Hepburn: Portopia Renzoku Satsujin Jiken ) , also known as The Portopia Serial Murder Case, is an adventure game designed by Yuji Horii and published by Enix (now Square Enix). It was first released on the NEC PC-6001 in June 1983, and has since been ported to other personal computers, the Nintendo Famicom, and mobile phone services.