Smiling friends, Pim and Charlie, we're given a task to produce a smile from a very popular princess. The problem? How will they able to do that?

Freeing himself from his prison, Cortex sets his sights on conquering a new universe in order to amass an army. Unfortunately, his choice lands him in a war with King Bowser himself. Now, the Bandicoot siblings and the Mario Bros. must join forces and clean up the mad scientist/Koopa king-sized mess the two have caused, spreading across two dimensions!

16 Contestants from the Mushroom Kingdom arrive on Yoshi's Island to compete for 1 million coins...Who will fall down, and who will prevail? Find out on Total Drama Mushroom Kingdom!

History repeats in one world, a new branching story opens up in another. This time, Mario has to team up with.. The Rabbids again! Not only that, Mario is tasked to team up with anime. Can he get home without death? (rated T for edge)

After the events of Super Loud bros Dr Eggman and Bowser team up and kidnap the Loud sisters again but Lucky for Lincoln Ronnie Anne , Mario and Sonic is there to help now the 4 heroes must embark on a quest to save all 3 worlds

Poor Plum ends up farting with her new golfing anime girlfriends and it causes quite a stink!

Plum farting is joined by a brappy Lois and a gassy Meg!

Love is strange. The feeling always comes back. How will Sonic overcome it? How will the others react? Will life be okay?

Plum farts and catches the attention of several farting Touhou girls at a game of golf.

Three years later, the Little Einsteins enjoy life before they received an invitation to attend a party at the Mushroom Kingdom.They travel there and meet new people, but disaster strikes when Big Jet joined forces with Bowser and they kidnapped Peach, Quincy, June, and Rocket. Now Leo and Annie must join Mario, Luigi, Toad and Toadette to save them and the Mushroom Kingdom.

Lincoln and his sisters end up the Mushroom Kingdom and they must get help from Mario and his friends to get them back home before their parents get back from vacation. But a bigger threat is planning to destroy the Mushroom Kingdom

Genesect's final space adventure begins in the Super Mario Galaxy Crossover Fanfiction. The Invasion of All Aliens Squad, the I.A.A.S., threatens to conquer the galaxies and enslave the inhabitants. It is up to Genesect and Jirachi to save the galaxies and stop the I.A.A.S. once and for all in Gemerl720 Post's last ever Fanfiction.

Sometime following the events of the YouTube arc, the Mushroom Kingdom gets turned into anime along with those who live in it, including SMG4, Mario and their friends.

On the night of the Anime Festival show, chosen Waifu dancer-acrobat Melony puts on what may be the most incredible performance on stage in front of everyone including her friends.

With Amy Rose acting as new road manager for Dude-itude, and the Mario Bros. on vacation in Mobius, the villains are ready to fulfill a new plan for domination! Sonic, Mario, and friends will have to scramble like crazy if they want to save their worlds and put on their new live rock show!

Sonic, Tails, and Knuckles are asked to play a live show in Brooklyn as their band Dude-itude; but as they enter the portal that leads from Mobius to Earth, Dr. Eggman hacks the portal and makes them end up in the wrong location, much farther away from where they need to be. The trio must travel all the way to Brooklyn, using what they can to survive!

What happened when the world of Remnant meet the unique and quirky character of Super Mario? one thing is for sure, they're in for an Adventure. This is a RWBY & Mario crossover but without Mario. Cover Art by yours truly.

A weird Eggman/Mario hybrid from another universe named EggMario Mariotnik kidnaps Princess Peach after she returns from a jog, when Mario and Luigi find out, they head off with their friend Sonic the Hedgehog to rescue the princess and stop EggMario before he can cause any trouble afterwards.

Peach invites Mario to the castle for some cake, but Mario doesn't find cake at the castle and gets pizza instead. However, there's more to this than meets the eye, especially with SMG4 around and always making meme-y videos on anything.

Bowser goes on a quest for a bigger army while he gets to know oddities about the world. Featuring characters from other universes.

In an alternate timeline in the SMG4 multiverse where Melony saved Axol from Zero's control at the end of War Of The Fat Italians, Melony and Axol have been dating for months. But now, as they watch fireworks explode, the manga artist does something almost impossible that makes their night special...

Following the final defeat of the evil entity known as Zero, SMG0 and his old friend Niles enter the afterlife where they reunite and make amends with familiar faces as they prepare for an eternity of lasting peace.

The Daughter of the DJ, Desti, frames her win in Splatfest as she and her Father take over Inkopolis, making the Octarians the Dominate Species in the City. But then, Meggy, an Orange Inkling, and her Friends must stop the DJ and his Daughter, as they go on a Quest for Magical Shards of Crystals to save Inkopolis before it's too late.

In this Lemon Zone Original, the kingdom of Glittopia is under attack by a gang of space pirates. Now, Donna, Mario and their friends must go and find The Stars of Glittopia in order to save the kingdom.

Swagmaster696969696 gets irritated with Tari, seeing her popularity as the reason why his and Chris' show got canned by SMG4, and confronts her angrily while saying insults that can hurt her feelings. Its up to Tari (and Chris) to set things right...