Mario

Mario is the main protagonist of the eponymous Mario franchise, and one of the many characters that make a guest appearance in DevilArtemis's Cell Vs videos.

Background
Mario, alongside his younger twin brother Luigi, was born in the Mushroom Kingdom as a "Star Child", being taken to their parents by a stork. However, the stork was attacked by the magikoopa Kamek. Apparently, Kamek foresaw that the Mario Bros. would become his king Bowser's greatest enemies and hindrances in the future, stopping his plans for conquest time and time again. To prevent this event from becoming reality, Kamek attacked the stork and kidnapped Luigi, leaving Mario to fall into Yoshi's Island. There, the would-be-hero of the Mushroom Kingdom met the Yoshis, who attempted to return him to his brother, due to Mario's bond with Luigi being so strong that he was able to sense his location. The Yoshis, using their teamwork, defeated both Kamek and the young Bowser (inadvertently setting Mario's rivalry with Bowser into motion), reuniting Mario with Luigi and the stork, allowing said stork to deliver both brothers safely to their parents.

After that event, the Bros. moved to New York City in Brooklyn (retconned into being New Donk City with Super Mario Odyssey), where they forgot all about their adventure with the Yoshis. They also became friends and rivals with Wario, Mario's alter ego. In their adulthood, they initially began working as carpenters, which ended up leading to Mario confronting his very first enemy; the ape known as Donkey Kong, who had kidnapped Mario's then-girlfriend Pauline. Afterward, Mario and Luigi began another career as plumbers and eventually, through unknown circumstances, found themselves back in the Mushroom Kingdom. They learned from the residents that were was a great disaster that befell the kingdom just recently. The Kingdom's crown Princess Peach was kidnapped by the adult Bowser, who also turned most of the population of the Kingdom into bricks. These events greatly irritated Mario, who along with Luigi, decided to take the Mushroom Kingdom back from Bowser. They defeated the Koopa King by dumping him into a pit of lava, getting kissed in the cheek by Peach as gratitude.

Perfect Cell Vs Mario
In the first Perfect Cell Vs Mario, Mario went to a local McDonald's restaurant, only to find the Bio-Android Cell has cut in line. The two quickly get into an argument soon after, with Cell calling Mario "a piece of Italian shit", and Mario angrily stating he just wanted a sandwich.

In Perfect Cell Vs Mario part 2, Cell suddenly found himself in the Mushroom Kingdom, where Mario taught Cell how to get around the Kingdom. The Bio-Android soon got disgusted with the rather brutal way Mario treats his enemies and discovering a seemingly dead Luigi lying near a block, causing him to leave.

In Perfect Cell Vs Luigi, Luigi attempted to find out where Mario was, but was unsuccessful. Eventually, both he and Cell discovered Luigi's rival Waluigi dressed in Mario's clothes, pretending to be him, which Cell quickly deduced as a plan of Waluigi's to get himself into Smash Bros.

In Perfect Cell Vs Mario Episode 3, Cell and Kermit discover that Cell's Arena was completely thrashed, with a warp pipe next to the mess. Mario eventually popped out of the warp pipe and greeted Cell and Kermit, unintentionally revealing he was the one who caused the mess in the Arena. Annoyed, Kermit sarcastically asked Mario if he would like it if he and Cell destroyed Mario's property. This led to the two getting the idea of travelling to the Mushroom Kingdom, destroying almost every inch of it, much to Mario's dismay.

In Perfect Cell Vs Super Mario Sunshine, Cell went to Isle Delfino for a much deserved vacation, where he butted heads with Mario again. The plumber (seemingly having forgiven Cell for what he did to the Kingdom) happily greeted Cell and introduced his personal water device F.L.U.D.D. to the Bio-Android. However, F.L.U.D.D. would not stop offending Cell with one insult after the other, much to Cell's anger.

In Perfect Cell Vs Mario and Luigi, the Mario Bros. went to Cell and decided to train with him for a while, thus gaining the "power of anime". Suddenly, Bowser appeared, wanting to settle his score with the Bros. and not being intimidated by Mario's statement about their new power, calling them "weebs". Angered, the Bros. turned into lookalikes of Jotaro Kujo from JoJo, and Mario proceeded to summon the Star Platinum stand to beat the King of Koopas up, all while Luigi and an annoyed Cell looked on.

In Perfect Cell Vs Budget Decrease Mario, Cell tried looking for Mario so the plumber could join him and the others in a game of cards. He eventually found Mario in a room with a TV. The plumber, having apparently been hit with "Budget Decrease", proceeded to turn on the TV, which played the famous theme song from the 1989 The Super Mario Bros. Super Show. Cell, likely in a fit of shock and anger upon discovering this, proceeded to blast both Mario and the TV with a Kamehameha.