You’d be forgiven for thinking that the games where Yoshi takes the leading role all take place in the Mushroom Kingdom. However, turns out that may not always be the case. This comes despite both Mario and Yoshi being created by the same man, Shigeru Miyamoto, and both characters appearing in the same franchise. In fact, according to Super Mario Director Takashi Tezuka in an interview with Game Informer, both universes are completely separate.
Yoshi’s universe, both in the Yoshi series as well as the yarn Yoshi world in Yoshi’s Woolly World, is separate from the Mushroom Kingdom. There’s not really a link between.
Interestingly, this could explain why you don’t see so many of Yoshi’s multicoloured friends appear in the Mushroom Kingdom, home of Mario, Luigi, Peach and Toad to name but a few. On top of that, this could also help shed some light on why it’s only the Yoshi we know and love, who made his way to the Mushroom Kingdom in the Super Nintendo classic Super Mario World. Although at the same time, it does beg the question as to why Baby Mario and his brother Baby Luigi were both being escorted across the crayon-infused land of the Dinosaurs.
Understandably though, whilst there’s not a direct link between the two lands, this obviously doesn’t mean that the characters can’t move between the two worlds. Otherwise, if that was the case, we’d never have seen the introduction of Mario’s long standing companion in Super Mario World. The very game where we were all first introduced everyone’s favourite gaming Dinosaur.
Nevertheless, according to Tezuka, it seems like no matter where Yoshi find himself, he always has fun:
We think Yoshi’s Woolly World is really fun so we’re sure he had fun in that adventure, but he also loves hanging out with Baby Mario, so he would have fun in that situation too.