Yoshi is a fictional dinosaur who appears in video games published by Nintendo. Yoshi debuted in Super Mario World (1990) on the SNES as Mario and Luigi's sidekick. Throughout the mainline Super Mario series, Yoshi typically serves as Mario's trusted steed. With a gluttonous appetite, Yoshi can gobble enemies with his long tongue, and lay eggs that doubly function as projectiles. Yoshi is the title character of the Yoshi series and a supporting character in Mario spin-off games such as Mario Party and Mario Kart, as well as many Mario sports games. He also appears as a playable character in the crossover fighting game series Super Smash Bros. Yoshi is a member of the same-named species, which is distinguished for its wide range of colors.

Super Mario World, known in Japanese marketing as Super Mario World: Super Mario Bros. 4, is a platform game developed by Nintendo EAD and published by Nintendo for the Super Nintendo Entertainment System (SNES). It was released in Japan in 1990, North America in 1991 and Europe and Australia in 1992. The player controls Mario on his quest to save Princess Peach and Dinosaur Land from the series' antagonist Bowser and the Koopalings. The gameplay is similar to that of earlier Super Mario games; players control Mario through a series of levels in which the goal is to reach the goalpost at the end.