Donkey Kong '94

Donkey Kong, commonly referred to as Donkey Kong '94, is a 1994 puzzle-platform game developed by Nintendo and Pax Softnica for the Game Boy. The player controls the Italian plumber Mario, who must rescue his girlfriend Pauline from the gorilla Donkey Kong. It begins as a remake of the Donkey Kong (1981) arcade game before introducing 97 original levels, incorporating game mechanics from Donkey Kong Jr. (1982) and Super Mario Bros. 2 (1988), in which the player must locate a key to proceed.