What open source platform game was modeled after a Nintendo game released in 1985 that required players to rescue Princess Toadstool?
Secret Maryo Chronicles Secret Maryo Chronicles, short: "SMC", is a free, open source two-dimensional platform game. "Secret Maryo Chronicles" has been described as a "Super Mario Bros." clone by "PCtipp".
Brain Breaker Brain Breaker is a side-scrolling action-adventure platform game released for the Sharp X1 in 1985. It is notable as an early example of the Metroidvania genre.