Mario ... he's chubby yet so athletic, He can run for hours on end, leap over gigantic chasms, has legs made of steel/rubber so he fall/bounce from almost any height on character's heads or ground/metal ..etc.. Eats mushrooms all day, never works... so many cool adventures ... he kicks ass in Brawl ... for fun.
He skates on lava, has a flying hat, flying cape, penguin suit, spring suit, acorn suit, raccoon suit, drives cool karts, throws parties ...etc.
He's the ultimate hero, he can do most of what all these other dudes do and much more, and he doesn't need a gun for that ... yet he can use one in Melee, Brawl ...etc.