@SMG4 is the creator of this character and heres his wiki:SuperMemeGuardian4 (formerly known as SuperMarioGlitchy4 until WOTFI 2021) abbreviated as SMG4 or colloquially as Four, is one of the two main protagonists (alongside Mario), being the titular one, of the series of the same name.
He is Mario's guardian and closest ally (rival in the War of the Fat Italians series), the de-facto leader of his gang, and SMG3's former nemesis. Very passionate and protective of his work, he seems to play the sane man who is often annoyed or shocked by Mario's idiocy. Despite this, they are the two that began their group of friends that have grown over the years to include many different characters who have joined the duo in going on many zany adventures, and fighting great enemies in story arcs.
During the SMG4 Cosmology Lore, SMG4 began to wonder about his origins and following the invasion of the virus called "Zero" that sought after Mario, he began to unravel the truth behind his past and his purpose as a Super Meme Guardian. Unfortunately, following this, he was stuck fighting for his channel's existence against Nintendo in The Lawsuit Arc that temporarily resulted in the end of his gang, until Mario managed to undo the damage, with SMG4 being allowed to keep his channel on the condition that he become an original identity going forward.
Following the events of The Lawsuit Arc, SMG4 began to realize that SMG3 was surprisingly getting more popularity than him online due to his streams and collaborations. This caused SMG4 to become envious of his partner and ultimately caused him to seek the "perfect video" to make his channel the best it could be; resulting in him slowly becoming unstable due to repeated failure and lashing that anguish out on his own friends in a fit of rage that eventually turned to true madness and evilness on SMG4: MAR10 Day, where he attacked the guests and ruined the party, before locking himself in his room for the next 100 hours straight, where he began a livestream countdown to when the "perfect video" would finally be revealed.
After the clock reaches zero during the "........Announcement??????" video, Meggy and SMG3 entered the room to find that SMG4's condition has considerably worsened due to a possession that causes him to repeat chanting that "IT'S GOTTA BE PERFECT" and over in an unnatural voice, where his psychotic aura begins manifestating eldritch symbols very akin to the ones that Niles was using towards the climax of the Genesis Arc.
The ultimate culmination of SMG4's insanity and efforts to create his ultimate video was him making a deal with an unknown entity that allowed him to create the video but at the cost of Peach's Castle being overtaken by a strange, eldritch substance that destroyed the castle but did manage to help SMG4 realize that everyone would still enjoy his content regardless of whether it was "perfect" or not, including from SMG3 who officially became part of the gang due to his involvement.
Now with his resolve clear once more, SMG4 sought to amend for his mistakes by building a new castle where he would be responsible for his own life from now on instead of having to piggyback off other's ideas/help. From there, he used his life savings to purchase an abandoned carnival called "The Showgrounds" and, over the course of several months, finally succeeding in creating The SMG4 Castle where he could begin a new era of videos and stories with the gang.
In the Remastered64 series, despite being redesigned, his old Mario Recolor model is still used for the purpose of remaking an old video in the past to match the events of said chosen video being remastered. Along providing voice lines from Luke Lerdwichagul as well like in the modern videos. These videos are just remakes of old videos, and fit into the canon when the original one took place.
In MEME HUNTERS and SMG4 and the Meme Factory, he starts to build his own factory by which, using Leggies, he creates more memes. also heres the edit song: https://youtu.be/SDt2OOdWR-Y?si=V4KoeoY12_eiBR39