"Bowser Junior's New Room!" (now named "Junior's New Room!" is the 450th episode of SML Movies.
The episode starts with Bowser calling Chef Pee Pee and Junior into the kitchen because he is savoring the last donut and no one is gonna eat it. Junior then plans to eat it and Chef Pee Pee tells him the consequences, after Junior wants to hang out with Chef Pee Pee, he then tries to trick Junior into eating the donut, After Chef Pee Pee said some words, Junior then decides to eat the donut. As Chef Pee Pee lays back to watch the world fall apart. Bowser walks back into the kitchen to find his donut eaten, Bowser calls everyone and demands him to tell who ate the donut. Chef Pee Pee tells Bowser that Junior ate the donut, Bowser then tricks Junior by saying the donut is cotton candy flavor and Junior calls him out by saying it is strawberry, Bowser eventually finds out and drags Junior to his room where he sternly grounds him for a month and takes away his toys and cellphone. Junior then sneaks in through the window and wants to hang out but Junior is still grounded. Joseph then tricks Junior into sneaking out when Bowser planned it the entire time and pays Joseph. After taking everything, Bowser then takes Junior's room. Junior then runs to tell Chef Pee Pee that he has to sleep on the couch with Chef Pee Pee. After Junior constantly asks questions, Chef Pee Pee runs to Bowser that he does not want to sleep with Junior. After Bowser makes a deal with Chef Pee Pee that he will get his own bed. Chef Pee Pee is very excited until Bowser announces that Chef Pee Pee has to share a bedroom. Junior is then making numerous disruptions and Chef Pee Pee begs him to go to sleep.
- Bowser Junior
- Chef Pee Pee
- Jeffy (phone case only)
- Thomas (on Junior's bed)
- Mario (cameo in background)
- This is the 450th SML movie.
- Chef Pee Pee and Bowser Junior are roommates from this video on.
- It is revealed that Joseph usually stalks Junior every night when he's sleeping. This may imply Joseph has a thing for Junior. However, this could simply be a lie after Bowser made the deal with him.
- This is one of the few episodes where Bowser outwittingly schemes his own son albeit doing so to presumably teach Junior a lesson for stealing his donut, and sneaking out dangerously out of the house.
- This is the first video since "Chef Pee Pee Pees Peas" to not have a scene in the Game Room.
- This is the last video of the original room that is used as Bowser Junior's room and Jeffy's room.
- This is the only video in 2019 where Chris doesn't voice anyone.
- This episode was uploaded 3 years after "Bowser Junior Goes To The Sun!".
- The thumbnail is misleading as it hints that Junior's new room will be Thomas-themed but in the actual episode, the playroom becomes the new bedroom.
- This video doesn't have a synopsis.
- Junior mentions that Bowser took away his phone and his toys, however, Bowser is only seen taking away Junior's phone and not his toys.
- However, it is possible that Bowser took Junior's toys away off-screen.
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