Mario is often portrayed as the dumb guy of the show, and a morbidly obese spaghetti addict. While he seems to think he is popular and has lots of swag (which is true as he has a fan club), Mario is in reality an attention-hogging, gay and pedophilic streaker who has been arrested several times. In addition, Mario has been depicted as a pervert, zoophile, prostitute, drug addict, and drunkard.
Because most of the aforementioned traits are played for comedy, Mario is the protagonist of many bloopers. While he can act somewhat bipolar, and is usually enraged by the slightest things, Mario is often cheerful to the point of annoyance.
Mario wears a long-sleeved red shirt, blue overalls with yellow buttons, brown shoes, and with gloves. He has a red cap, brown hair, a black mustache and blue eyes. He is shorter than his younger brother Luigi.
In Nintendo canon, Mario is a friendly plumber who helps anyone in need, devotes most of his time to rescuing the princess of the Mushroom Kingdom, and participates in sports matches, kart races and "parties" often.
However, in SuperMarioGlitchy4's bloopers, Mario is selfish, lazy, and somewhat mentally handicapped, almost the complete opposite of the Nintendo canon.
Mario acts as a major bother to everyone living in Princess Peach's Castle, causing almost everyone there to temporarily hate him (to the point where they would dance in his funeral instead of mourning him at the end of The Elevator after he and Luigi died at the end). While Mario usually does not mean to cause people harm, there have been episodes in which Mario harms people for personal gain. He's also a sore loser, to the point where he would attack SMG4 when he won in a round of Mario Party, claiming he cheated because he got 99 stars, which is impossible. He is also very impatient and rude but nevertheless seems to enjoy music (such as What is Love?) and dancing (as shown in Stupid Mario Party).
He also needs attention: an example is when, during the events of YouTube Mario?!, he created the channel theawesomario to get SMG4's attention and surpass his level of popularity. In the early bloopers, Mario was also depicted as somewhat being gay and a pedophile, but those traits were eventually dropped.
Mario also has a habit of being naked...which at one point resulted in Luigi's Youtube channel being banned when he streaked inside his news studio. Due to his stupidity, he doesn't know how to do some basic things, such as counting despite being able to read and write. He is also done many horrible unintentional things, such as nearly bankrupting his home company Nintendo, getting Frankie arrested, and freeing Grand Dad, who nearly destroyed the world.
While Mario sometimes shows signs he cares for others like SMG4, it is often overshadowed by how much of a jerk he can be, never wanting to help his friends, even in life-threatening situations until the Waluigi Arc. Despite this, Mario is mostly a good person, but yet he has many flaws.
Like his mainstream counterpart, Mario has a multitude of strengths and powers. He has so many, we'll have to narrow the list. Here are his primary shown powers:
Superhuman Strength: Mario has been strong enough to punch people several feet away, and lift Bowser, who weighs over 300 pounds. He also punched a pilot straight through the window and down to the ground in Super Happy Magical Fun Fun Island, and once even lifted King Bob-omb (calculated to weigh 30 tons). He can also rip out a control panel of train and even throw a weightlift into the sky. After launching Fishy Boopkins in the sky, he ended up making a plane crash into E. Gadd's workshop.
Superhuman Endurance: Mario has survived falls from great heights, explosions, getting attacked by Bowser, getting crushed, blows from SMG4 (about as strong as him), and even car rashes, all barely fazed.
Pyrokinesis: Much like his own games, he has shown the ability to manipulate fire.
Hand-to hand Skill: He is a master at unarmed combat, as shown by his many battles, with him winning most of them. He has his own unique style, with very fast and powerful punches and kicks and tackles.
Giant Size and Strength: In Ssenmodnar 10, Mario used a Mega Mushroom to grow into Mega Mario, a power-up form who is bigger, stronger and tougher than the base Mario.
Coldness Survival: In Icetrapped, in some clips, Mario is seen naked in the freezing cold a few times, without any adverse effects.
Great Rapper: In War of the Fat Italians 2015 & 2016, as well as Supah Star Rap Battles of Epicness, Mario has demonstrated great rapping skill.
Computer Hacking: Despite normally being unintelligent, Mario was shown to be perfectly capable of hacking into computers in Mariotube 2. However, he needed to break into Youtube Studio in order to do so.
Of course, Mario has weaknesses (though comparatively few compared with many characters).
Slow Speed: Due to his high weight (over 300 pounds), he is slow on his feet, as shown in 101 Ways for Mario to Die, Retarded64: The 1337 Police, and several other bloopers, though this isn't much of a flaw compared to his biggest weakness. However, he was shown to be agile enough to avoid being flattened by the Hamburger Supreme in Super Mario Jackass.
Stupidity: Mario is one of the most stupidest characters (if not the stupidest character) in the series, not even knowing what 1+1 is until Baldi taught him math. So far his biggest weakness, it cost him quite a few battles despite his strength. Mario sometimes shows signs of intelligence in some episodes, with the biggest example being Stupid Mario Stupid Show.
Numbness: As of SM64: Super Mario RUN RUN RUN!, he can no longer feel his legs. However, it is likely that this weakness disappeared in the next video.
Impulsive: Mario has an tendency to run into danger without a strategy. This caused him to lose several lives in Can Ganondorf come out to play?, get bombed several times by SMG3 in SMG3's Gauntlet of Gloom and almost got him turned into a T-Pose Zombie in Mario And The Waluigi Apocalypse.