He rescued Peach in Super Mario Bros.
In the original Donkey Kong, where you climb the ladders and jump the barrels, the hero is "Jumpman," who later became more commonly known as Mario of the Mario Brothers.
because he is the hero of Mario bros games
That's the way it is. Mario is the hero. And a hero has a reason to be a hero, right? Mario's is because he saves Peach. At least in the adventure games. If you're tired of Mario saving Peach, I suggest Super Princess Peach, any Mario Kart and Mario Party games, and any kind of Mario related sport game. Such as Mario Super Sluggers.
He became a hero by winning the olympics
Benjiman Franklin became the hero to both of the countries during the Revolution.
Andrew Jackson became a national hero
No, Wario is Mario's opposite/anti-hero.
Mario is my hero :D !
He became a hero by protecting the good and killing the bad.
bcause he is the hero !
Baseball player Jackie Robinson became a national hero. He was a famous baseball player.
Anyone with a mostache is automatically a superhero :)