LogFAQs > #909347272

I think it's super weird to call Mario characters and Mario sports characters different things. Those are all Mario games!

Wario has his own series, yes, but it's incorrect to say he guest stars in something he originated in. The first Wario Land was even called Super Mario Land 3. They're directly connected, you can't level him with Link, Inkling, Isabelle and even Donkey Kong. Smash recognizes it as a spin-off too.

Yoshi is a completely different case though. I think they just wanted to make it appear like the original 8 were from 8 different things. Yoshi still appears in mainline Mario games, which are more common than his own. He's popular enough to have his own games, but so has Luigi and I'm sure no one would say he isn't a Mario character. Even in most Yoshi games, Mario is right there as a crucial part of the plot. And as has been said, Smash itself even put him in the middle of the Mario characters last time.
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