Mario is a lovable dunce, and the protagonist (or antagonist) of many SMG4 videos. Mario is an immensely dumb, narcissistic and troublemaking person, and despite his good intentions, his selfish and stupid behavior often antagonizes and ruins people's lives. Yet when things are at their absolute worst, Mario proves capable of even an ounce of selflessness and compassion. He is obsessed with spaghetti. He has a brother named Luigi, and his best friend is named Meggy.