But it all makes like a weird amount of sense. I mean Mario also isn't made of weird pixelated legos, either. It's like the writers were shown some stills from the game and told the basic story and then dropped acid.
I can see Yoshi being a raptor or even Dennis Hopper as Bowser since he's supposedly an evolved dinosaur, but how do you go from an anthropomorphic mushroom with just a head and feet to a reptilian humanoid with a tiny head?
We know that SMB3 was a play but we don't know that the other games in the series weren't. The 1993 movie might be the only truly canon entry in the franchise.
Funny enough, I don't think Wario and Waluigi are ever said to be siblings. Waluigi just kinda... showed up to a tennis match one day and then stuck around.
The baby versions of most mario characters, including Wario, were canonically stolen by Kamek in yoshi Island 2. At the end of the game, all children are returned to their parents expect for Wario, who steals all the gold of the island and flees with a raft
So the theory would be that Wario was waluigis brother but went missing as a child, and the two are just not realizing it.
wapeach and wadaisy are roommates too, but they specifically have personalities that make them not prone to shit like getting kidnapped to be a plot point or competing in death races, so you never hear about them. Ones a social worker.
Edit: Out of curiosity, if you're downvoting me, are you downvoting because you disagree, or because the person meant it to be a joke? In the former case, it's both common sense and also Miyamoto said as much. In the latter case, there's no indication whatsoever that it's a joke, so would I have been wrong to "miss the joke"?