SuperMarioGlitchy3 spawns a crazy Koopa who goes on a rampage and steals Koopa shells, including Bowser's. Now it's up to Mario, Bowser, and the rest of the crew to get that crazy Koopa and recover the shells, if they can.
(The SMG4 title screen appears, along with SMG4 twirling onto the scene and striking a pose before he gets hit by the "Productions" part of the title and knocked off screen.)
Mario: (appears in the bottom-right corner, with a troll face) Whoa!
(The episode begins at SMG3's Secret lair, indicated by the sign "Secret lair (DO NOT ENTER)," where SMG3 was finally working on an evil plan for once.)
SMG3: Finally.... After 9 months... It is time!
(The camera changes to show a dead Dry Bones on a table, with a laser right above him.)
SMG3: If I can revive the dead... I'll be able to have my own monsters!
(SMG3 starts laughing evilly and then manically, causing a giant, red-shelled Koopa Troopa to pop out from a doorway, irritated.)
Giant Koopa Troopa: Will you shut up?! People are trying to sleep!
SMG3: Sorry Mr. Kent!... (under his breath) Stupid hag...
(The scene changes to a town, where a few Toads are just minding their own business, while one falls out of the sky and explodes. Meanwhile, at Club Pingas, Mario was throwing Toadsworth a "105325th Birthday Party". Dr. Eggman was dancing near the table Toadsworth was behind, as Mario appears from the bottom-left corner, naked and laughing, while a Teletubby was humping a pole and Luigi was getting chased by Wario. Mario then goes up to Toadsworth, while SMG4 was found nearby, appearing drunk.)
Mario: Hoohoo! Enjoying your party Toadsworth???
Toadsworth: First of all, I'm not 105325. I'm 64! Idiot! And my birthday was last we-
Mario: (interrupts) ...Oh! Look! Your special present is here!
(Wario starts backing up towards Toadsworth, aiming his butt at Toadsworth's face. Toadsworth panics and starts screaming as Wario kept on coming.)
Mario: (happily watches) Woohoo!
(Just then, Steve shouts out from nearby, causing Mario to go wide-eyed.)
Mario: Wah?! (turns towards Steve)
(Princess Peach was seen, stuffed inside of a cannon, and Steve shot her at the wall, making her crash to the outside and falling to the ground, dead.)
Mario: (angry) Mammaf*cker!! Dangit Steve! Ugh!