Bowser

Bowser is a fat dragon-like Koopa who is usually Mario's arch-nemesis. In the earlier videos, Bowser was usually one of the main antagonists of the bloopers (besides SMG3). He is the leader and king of the Koopa Troop army.

His main goals include capturing Princess Peach and trying to conquer the world, although his plans almost always failed, and he often needed the help of SuperMarioGlitchy3.

Bowser has been shown to have used other methods of destroying Mario and SMG4 as well, such as creating 4 Mario robots & giving people nightmares with a crystal stone. Also, he ran a cooking show with Mario on 3 different occasions!

In the newer videos however, Bowser is much less evil and behaves just like Mario and is obsessed with swag. Bowser has started to decrease in appearances as of April 2017, though he has recently appeared in Mario and the Bob Mansion.

He once hosted a tech channel, but he eventually got bored with it and decided to make it a tech destruction channel instead, which resulted in it being banned.

Personality
In the earlier episodes, Bowser was similar to his canon counterpart, kidnapping Peach and hating Mario. However, as the blooper series went on, Bowser began to like Mario, and much of his personality appears to influence Bowser, making him act in a rather retarded way.

He is shown to be friends with Meggy.

Abilities
As in Nintendo canon, Bowser has the ability to breathe fire. He is also apparently a good racer, as he was able to outlast most of the other racers in Stuoid Mario Kart.

Trivia

 * He can successfully copy Peach and Mario's voice.
 * He hates SMG3 unless it happens that he lives with him.
 * He's rarely the actual antagonist in bloopers, contrary to his true nature in Super Mario 64 and the Mario series in general. One notable exception is in Super Mario Interactive.
 * He is somehow able to fly.
 * He loves Justin Bieber, just like Toad and Yoshi, but in the blooper "Mario's Guide to Defeating Bowser 2.0", when Justin Bieber's song is played in the radio, Bowser didn't like his music. He shouts "I'm trying D: AHHHH MY EARSS!EFRW."
 * The Adventures of Mario and Luigi mini-series is probably Bowser's biggest role as a antagonist with Bowser's appearance not being until the end of Ep. 2 after the defeat of his son, Bowser Jr., and the downfall of his airship as the "surprise" main antagonist after he takes over Peach's Castle to proclaim it as the new Bowser's Castle.
 * In "The Adventures of Mario and Luigi - Ep. 4", he was in love with Princess Daisy.
 * Even though in Super Mario 64 he hates Mario, in SMG4's bloopers, Bowser likes Mario however despite this there are a few instances where he does try to kill Mario like in Super Mario 64 Bloopers: 4 Clones 1 Italian but these instances are kept to a short degree.
 * He has a JB cutout, which he makes love to as shown in Ssenmodnar 6.64(100k special Qna Edition).
 * He's in love with Peach, as seen in "Bowser Cyrus - Wrecking Ball".
 * According to "SM64: Cooking with Bowser &amp; Mario 2!", he loves melon.
 * He hates Super Mario Twilight and its sequel because he gets sick and vomits as seen in Retarded64: Son of a Bowser.