When Mario and Luigi are transported into Sonic's world, they must help the Blue Blur stop Dr. Eggman from using the power of the Phantom Ruby to take over the world. Can the two groups work together? Or with the help of the Hard-boiled Heavies, will Eggman prevail?

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This is it! In this special 100th episode, portals appear and worlds collide! This episode features flashbacks to classic episodes, along with fun surprises that will delight any MBS fan. It's also the longest episode ever produced. We know you'll love it! 

When Fawful captures Mario and Luigi, the whole kingdom faces grave peril! To make matters worse, the devious villain replaces the bros. with two identical-looking A.I. robots! Will Peach and Toad be able to figure out the "A.I. Bros" are fakes? Or will Fawful succeed in taking over the Mushroom Kingdom?

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When a magic spell causes Bowser to switch places with a Bowser from another world, things get crazy! Regular Bowser and Other Bowser are total opposites, and their worlds are completely different too. This one will make you laugh out loud as the Bowsers try to figure out a way to return to their own worlds.

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When Luigi decides to start his own garden, Mario thinks it won't turn out well. Can Luigi prove that he has a green thumb in addition to his green hat? This bonus episode has several first-time guest stars, including Monty Mole and Piranha Plant!

Loosely based on the game Donkey Kong Bananza. Mario and Luigi watch the newest DK movie, in which DK and Young Pauline team up to go on a quest to reach the planet's core.

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Loosely based on Chapter 5 from Paper Mario: The Thousand-Year Door. When Mario and friends go on a pirate cruise, they think they're in for a fun time. But when their ship is destroyed by a storm and they're marooned on an island, they must try to survive. Soon they discover that they have washed ashore on Keelhaul Key, the haunting grounds of Cortez, the dreaded King of the Pirates!

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This is an old episode from the original series (2012). It has been reissued after being taken down due to problems. We hope you enjoy this classic episode!

Mario and Luigi are thrilled when they win a free vacation to Delfino Island! But when they get there, they realize why it was free: you can't understand anyone! Mario is determined it's going to be a boring vacation. . . until they start receiving mysterious notes about suspicious natives...

This is an old episode from the original series (2014). It is being reissued after being taken down due to problems. We hope you enjoy this classic episode!

Based on the educational game Mario's Time Machine. Bowser has built a time machine called the Timulator and used it to steal five important historical artifacts. Now it's up to Mario to jump in the Timulator and return the artifacts to the rightful owners. Get ready to ride along with Mario to five different time periods and meet famous people!

Waluigi is finally getting his own episode! Things get crazy when the Narrator decides to leave, and Waluigi is (kinda) forced to help a Sprixie named Wanda find her way to Super Bell City. Anything goes on this wild adventure. . . . make that misadventure.

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Loosely based on the side mode Bowser's Fury for the Nintendo Switch. When Bowser Jr. and Kamek accidentally use magic paint on Bowser, the Koopa King grows to enormous size. Mario teams up with Princess Peach, Toad, and Luigi to try and stop him. Unsure about what to do, they turn to Doctor Stroodlestein, the inventor of the cat suit. But is there a way to stop a Kaiju-sized Bowser?

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