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Please don't do that.

—Mr. Monitor's catchphrase

Mr. Hall Monitor, also known as Mr. Monitor, is a security guard debuting as the main antagonist of SMG4: Mario School Club.


He is a tall, thin man with a computer monitor for a head. He wears a traditional security guard uniform.


Despite appearing kind and normal, whenever he sees or hears disorder, he shows his true colors as a psychopathic mood-swinger who hates any type of disorder or illegal activity and will give out severe and gruesome punishments to anyone who does so, which includes tearing out genitals and organs and blowing victims up, sending them to the sky burning. He also attacks people whose crimes are justified or are incredibly minor issues (examples being when Wario was going to get across the street when there was a red light and Bob insulting him and the school).


When SMG4 attempted to leave the school despite Mario's warnings (since they were trespassing), the guard, upon noticing him, made several disturbing faces and repeated his words over and over as he begins to chase SMG4 back into the room for trespassing. He later overheard the commotion in the room when Mario accidentally summoned Satan and reveals to tear apart the genitals of people who commit disorder, as evidenced by the quote "I don't want to tear another anus today." It is only by Mario and Bob pretending to be a student and a teacher respectively that Mr. Monitor leaves and goes back to his shift.

At the end of the episode, when Bob insulted the school and Mr. Monitor by saying he "can go suck a chode", the guard barged into Peach's Castle and threatened not only Bob but the rest of SMG4's Gang with a bazooka.

He reappears in SMG4: If Mario was in The Sonic Movie after Mario writes "free candy" on Dr. Eggman's van, causing the guard to mistake Eggman for a pedophile and blowing him up (though due to Gmod physics, his monitor head is blown away by the explosion). His name is revealed to be Mr. Hall Monitor in SMG4: Mario's Magical TV where he promotes safety cameras.

In SMG4: Mario Commits Tax Fraud, Mr. Monitor arrests Mario for having committed tax evasion (granted, Mario never did any tax training in his life and said tax evasion was justified) and beats him up severely when he tries to escape via the sewers. After Mario and Yoshi escape the prison, Dovahklin attempts to warn Mr. Monitor, only for Yoshi to make him fall endlessly through portals with the Portal Gun. Yoshi then forces Mario into the Council of Tax Fraud, but after learning what its members do all day, Mario tries to quit, only to be captured and sentenced to execution by the leader, Beeg Yoshi. Mario is forced to call Mr. Monitor (who was strangling Wario for trying to walk across the street on a red light), to help him. Mr. Monitor easily dispatches the Yoshis and as a thank you to Mario for exposing the biggest tax evaders in the kingdom, allows him to go free. He, however, threatens to rip Mario's organs out should the latter commit any other crime.

He makes a brief appearance in SMG4: Mario Runs Out Of Toilet Paper, selling toilet paper. However, since the Mushroom Kingdom is running out of it, Mr. Hall Monitor only offers 1 roll per person. This results in a large line of customers desperate for toilet paper. Bowser can be seen getting choked for attempting to take more than a single roll, once again showing how serious Mr. Monitor is about rules. Mario tries to fool him by sticking a computer screen to his own face, attempting to look like Mr. Monitor's father. After making this claim, Mr. Monitor mentions that his father is dead, ruining Mario's disguise. Mario manages to escape the situation by splashing Mr. Monitor with water, making the computer head electrocute himself.

He makes a cameo appearance in SMG4: Mario's Inside Story, where he is shown in a photo in Luigi's phone trying to arrest Mario for public nudity with Luigi dragging him away.


Powers and Abilities

  • Warping: First seen in SMG4: Mario's Magical TV, he has the apparent ability to warp to a given location through screens. This is shown when he warps through one of his security cameras and begins attacking Wario when he tries to steal a package. He later uses this ability to warp to Mario's location when the latter was about to get executed by the Council of Tax Fraud.
  • Superhuman Strength: In SMG4: Mario Commits Tax Fraud, he saved himself and Mario from getting crushed by a giant spike-ball and hurled it into the sky.
  • Crime Sensing: Mr. Monitor can somehow instantly arrive at the location of a criminal the moment they commit a crime, even minor ones, as shown when he barges into Peach's Castle after Bob insults him and Mario and Luigi's house not long after Mario committed tax fraud.
  • Indescribable Ability: In SMG4: Mario Commits Tax Fraud, he punished Mario with an indescribable ability that is powerful enough to send him flying to the sky set on fire. This ability was used again when Mario tries to escape the prison through the sewers.


  • Mr. Hall Monitor is the first original character to be introduced in Season 10.
  • He is the fourth major character to be voiced by a Speakonia voice, the first three being Chris Gordman, Swagmaster69696969696, and Grand Dad.
  • It's possible he is a robot, suggesting by his computer head.
  • Mr. Hall Monitor's name is a reference to his job (a hall monitor) and his head being a computer monitor.
  • His father is revealed to have passed away in SMG4: Mario Runs Out Of Toilet Paper.

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