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Daddy, can you teach me about the birds and the bees?


Bowser Koopa Jr. is a classic recurring character in the SMG4 series.

He is Bowser's winning, cool, and neglected son. Bowser refuses to hug him for money. He also occasionally forces other characters like his grandmother and Mario to take care of Junior for unknown reasons. Bowser Jr. is a rebellious delinquent who often antagonises others. He is also the final antagonist of Season 7, appearing as the main antagonist of SMG4: Stupid Mario World.


Bowser Jr.'s personality is mostly the same from the main Mario games being pretty competitive and somewhat bratty. He also occasionally acts a bit retarded much like his dad and Mario do and he is shown to hate annoying stuff. He also dislikes his dad sometimes for neglecting him in some newer episodes, but has been shown to care for him nevertheless.


His first appearance in SMG4's videos is in the video SM64: The Adventures Of Mario And Luigi Ep 2 where he kidnaps Mario and Luigi when they're searching for Peach. He later explodes when he accidentally blows up the machine that controls the ship. This was to be his first appearance in SMG4's bloopers. He also appears in Like a Bowser where Bowser refuses to hug him.

He also appeared in Sob Story: Tale of a Bob-omb as one of the workers at the factory at the beginning of the video but unfortunately doesn't have much of a role after this.

He also appears in some Ssenmodnar videos. In Ssenmodnar 6.64 Bowser Jr. asks Bowser about the birds and the bees. After a long absence he makes a cameo appearance in Ssenmodnar 7, where Super Steve saves Peach from him.

He also has be seen in Cooking with Bowser and Mario 2 where a Garry's Mod ragdoll of him flew around while spouting lines from "NiN10Doh - ToThe64thPower".

He made a minor appearance in SM64 Christmas 2014: The Bowser That Stole Christmas.

He later got a major role in Retarded64: Son of a Bowser, where Mario has to babysit him.

Bowser Jr. later went on to become the main antagonist in SM64 Bloopers: Smexy Soccer, where he faces off against Mario and his team in a battle for the soccer field.

He is mentioned in SM64 Bloopers: Shoot to the Observatory in the Sky by Bowser.

Bowser Jr. reappears in R64: Princess Capturing Simulator. where he is one of Bowser's allies present in his castle.

He also made a minor appearance in SM64: Meet the Bowser.

He also appears in SM64: Mario gets a Nintendo Switch!. In this episode, one of Mario's tasks for Bowser is to pick Junior up from school. Later, as Mario is trying to swipe the Nintendo Switch from Bowser, Bowser Jr. comes in and tells his dad that he had a nightmare, but notices that Bowser is raping Mario (who was trying to get the Nintendo Switch from Bowser) and, now shocked, sings "Fuck this shit, I'm out" and flings himself out of Bowser's room.

He reappeared in The Mario Channel: MARIOBUSTERS in the doctor's room alongside Bowser and the 7 Koopalings. A Fake doctor states that the Koopalings are Bowser's children and Bowser Jr.'s Brothers and Sister.

Bowser Jr. also makes a cameo appearance in SMG4: Marioception in one of Bowser's dreams.

Bowser Jr. makes a minor appearance in SMG4: Super BACKWARDS Bros.

In SMG4: Mighty Morphin' Mario Rangers, Bowser Jr. is seen playing with a Mecha Koopa toy until Dr. Pootis arrives in his robot walker (Magnus Von Grapple) and burns it to ash causing Bowser Jr. to cry.

Bowser Jr. reappears in SMG4: Stupid Mario Sunshine as the main antagonist. He is seen messing up Isle Delfino disguised as Hobo Mario and Mario ends up being framed for it. He then summons the giant Mecha-Bowser which is soon destroyed by Mario and Bowser Jr. pops out in his true form saying he just wanted to be evil and that Mario ruined everything. Bowser Jr. is later seen in an old crib at the end of the video.

After a month of absence, Bowser Jr. reappears in SMG4: AREA 64 as one of the attendants to Bowser's Birthday. He gives his dad a book for his birthday which turns out to be a book titled "How to get over your princess obsession". Bowser Jr. then confesses that he accidentally went into his bedroom and thinks that he needs help.

In SMG4: Mario The Boy Scout, Bowser Jr. steals a suitcase from Mario's scout group and Mario goes to get it back before being caught by Bowser Jr., Bowser, and their whole scout group and starting a war.

In SMG4: The Movie Audition, Bowser Jr. is seen in the filming for the movie Charlie and the Chocolate Factory as one of the guests.

In SMG4: Stupid Mario World, Bowser Jr. gets bored because his dad is too interested in his bouncy house so he sends out the Koopalings to defeat Mario and Yoshi. Upon all their defeats, Mario and Yoshi fall from Rainbow Road onto Bowser Jr. on the bouncy house and both Mario and Bowser start jumping on it together while Bowser Jr. and Yoshi lie on the ground injured.

In SMG4: New Year, New Mario, Bowser sets his New Year resolution as playing with Bowser Jr.. Bowser gets his son off the computer and they both start playing video games together. After several failures and wins, Bowser rips the controls and burns the console much to Bowser Jr.'s disappointment.

In SMG4: The Mario Café, Bowser Jr. made a minor appearance.

In SMG4: War Of The Fat Italians 2018, he gets in trouble after Mario steals Bowser's chicken nuggets while dressed up as him.

When his father stars on SMG3's ill-fated television series Dr. SMG3 in SMG4: A Day In The Life Of Everyone, he reveals that he regularly abuses Bowser Jr. and never plays with him.

Despite the neglect, Bowser Jr. still loves his dad and only wishes that he could spend time with him, as that was the wish he asked "Santa" to grant, only for the faker to ask him "why the hell he wants to spend time with that loser in SMG4 Christmas Special 2020.

In SMG4: Stupid Bowser's Fury, Bowser Jr. plays a major role in the episode where he plays one of many cats in Mario's play. Bowser gets so disappointed by his son's cringey acting in a cringey play that he turns into Fury Bowser and attacks everyone. Bowser Jr. later assists Mario in his hunt for Cat Shines in order to pay for cleaning the Giga Bell. During the final fight, Bowser Jr. is one of many people who gives Giga Cat Mario "cat energy" to beat Bowser. After Bowser returns to normal, he tells his son that he can't remember the play, but Bowser Jr. simply tells him that he was glad that he was just there. Unfortunately, Bowser realized that he must have recorded the play on his phone, so when he re-watched it, he started to get angry again.


Powerlevel: D

  • Fire-breathing: Like Bowser, Bowser Jr. is capable of breathing fire.
  • Brush: Like Axol, Bowser Jr. is able to make his own drawings real.


  • In SM64 form, Bowser Jr. appears as a shrunken re-texture of Bowser's model, and when inspecting closer, he has multiple textures of the mask on his handkerchief.
  • Initially he has been suffering because of how bad his father's parenting was, until in SMG4: Bowser Loses Custody Of His Children his children were not taken.

GMOD model

v - e - d SMG4 characters