I don't know... he smashes turtles?
Super Mario

Yes, that's one aspect of it. However, he also cheats on princess peach. He also goes out with Princess daisy and with Pauline in the Mario vs Donkey Kong games.

True. Mario is also a very selfish brother to Luigi. He never lets Luigi be significant in his adventures.b

Here's an example. In paper Mario, Luigi has a secret diary and writes that he would love to be included in Mario's adventures. Mario peeks at the diary and even after he does, Mario still doesn't get the message.

Yes. That looks cool. Did you know that from the beginning of Mario, the mushroom people were turned into stones and bricks by black magic. So whenever Mario smashes a block, he kills a mushroom. By the time Mario saves Peach, he will have killed almost 500 other mushrooms. Maybe more. Of course that depends on us as players.
We all see super Mario as a hero, who is nice to everyone and saves Princess peach from the evil Bowser. But Mario has some big secrets up his sleeves. In this post, I am looking to uncover all of Mario's secrets and why he should not be considered a hero.