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.
Hotel Mario Hotel Mario is a puzzle video game developed by Fantasy Factory and published by Philips Interactive Media and Nintendo for the Philips CD-i in 1994. The primary character of the game is Mario, who must find Princess Toadstool by going through seven Koopa hotels in the Mushroom Kingdom. Every hotel is divided into multiple stages, and the objective is to close all doors on each stage. Defeating a Koopaling on the hotel's final stage takes the player to the following building.