Everybody knows the story of Ben 10 throughout the universe, even the multiverse. The boy who was slimy, freaky, fast, and strong, and every shape and size. But what if in one universe, that wasn't the case. What if the Omnitrix became something else entirely, and the contents inside changed as well. Get ready for an ordinary world to have thousands of new discoveries.

Ben Tennyson gets sent to the world of Fairy Tail where he meets the Fairy Tail wizards. He joins the Fairy Tail Guild and forms bonds with his new friends and teammates and will have many new challenges with them. BenxHarem

Ben Tennyson meets Ruby Rose during his summer break, and picks up both the Omnitrix and a thrill for action. Along the way, Ben discovers new alien forms, develops new techniques to use in battle, and a blossoming romance, while also forging close bonds with his new friends. But can he and his friends handle being thrust into a conflict between good and evil? (Cover by elmike)

With no memory of whatsoever our protagonist with an insane ability wakes up in a world full of creatures known as Pokemons and Meet two Trainers by the name Ash and Goh on thier journey towards their dreams

When a species called the novatron they're objective is to conquer the multiverse and rule to their image so It's up to Ben Tennyson and other superheroes of each earth to stop them. It's time to unite Ultra legions.

When a Fox/Kitsune mobian hybrid obtains the most powerful device in the universe, the Xenotrix, he must defend his planet and beyond against all who side with evil, with his brother, cousin and tons of friends by his side, he will never give up to save all of those in need, IT'S BLAZING TIME Cover art by my friend Rickthehedgewolf on DeviantArt

Ochako Uraraka finds herself unexpectedly taking on the mantle of the Omnitrix wielder from Ben Tennyson. As Ochako begins to explore the capabilities of the Omnitrix, she must also navigate the complex relationships and alliances, all while facing off against increasingly powerful enemies. Art by @gayartistsuzzan on Twitter!

When 10-year-old Ben Tennyson is sent to his Aunts in Canterlot City for the summer, he thinks he is going to have a horrible vacation. but when a strange watch from space literally crashes into his life, he finds himself in the shoes of 10 different alien superheroes! With the help of some new friends and his family, Ben 10 can take on anything! 1 part kid, 10 parts superhero!

During a battle with Vilgax, a freak weapon malfunction has duplicated and sent 11-year-old Ben Tennyson to another Earth, altogether. Now, not only does he have to get used to this new world, where he is found by 3 teen spy girls, but also figure out how to use the Omnitrix after it rebooted and back to 10 aliens again! This AU Ben has a different middle name from Ben Prime.

Gwen Stacy is chosen to become the successor of Ben Tennyson. Read and enjoy her origin as the heroine, G-Morph, and her ever-growing adventure with her arachnoid boyfriend. Mainly based on The Amazing Spider-Man movies and the MCU but has some original ideas. Peter and Gwen pairing. Inspired by The Incredible Muffin. Originally titled "Wristed Heroes"

First story. The ultimatrix goes to a new wielder(Oc/Si) who is transported to the injustice story near the end of the first game and picks up after superman is supposed to brought to the insurgency earth. It will go through to injustice 2 with other arcs being included.

Kevin Levin has been missing for years, presumed dead. Ken Tennyson doesn't think so, and travels to Earth to look for clues. He stumbles across a large family, the only son of which has the peculiar ability to make his body take on the properties of any solid material he touches... (Adopted Lincoln AU)

Some worthy souls are chosen to carry the mantle of great heroes. Sometimes, this is destiny. Other times, it's all about being in the right universe, at the right time, chosen by the right watch.

When the powerful King Detritus and his massive army invade Earth, a group of unaligned heroes and a certain Anti-Hero, discover the only way to fend off the attack will be to work together as a cohesive unit. The Blur, Ben 10, Cat Noir, American Dragon, Gwen, Danny Phantom, Ninja, and Kevin combine their respective talents in an all-out battle to save the planet. YJHU: 1

Ben Tennyson, the wielder of the Ultimatrix, and the hero of the universe has lost everything. After the death of his loved ones by his nemesis Vilgax, he decided to end everything, but instead of death, he finds himself in a new world. A place where the capital is corrupt and assassins are on the loose to stop their madness. Which side will our hero join? (Need help with title)

Summary: AU. Kevin Levin visits his mother only to find that she's been attacked and murdered. With her dying breath, she tells him that she's not his real mother but his mother was a woman named Mary Lloyd. He is contacted by someone claiming to be his mother and learns of a mysterious cabal known as The Court of Owls.

Here we will see the heroes return with a whole new adventure, and old foes will tried to take over the multiverse

this is what i think would happen if some of the strongest members of Fairy tail would be thrown into the events of ultimate alien and omniverse. main pairings will be BenXMirajane, KevinXLisanna, and GwenXNatsu rated m for later chapters.

Something is happening at Cadmus, so Ben Tennyson, Kim Possible, and Danny Phantom must find out what they are up to. Only to find out that Aqualad, Kid Flash, and Robin are there as well. Follow as our cartoon heroes interact with the Young Justice as they find out why their villains are teaming up and working with the Light.

Ben Tennyson once again saved the universe after defeating the evil Chronosapien Mautruant, but in a completely different world, in a completely different village, there are people who need a hero, and a boy with a "magic watch" would be a good call. How will the Omnitrix Wielder deal with the dangers that plague this place?

Un niño condenado por cosas que estaban fuera de su control...escapando para salvar su vida...sin esperar a encontrarse con un ser de otro mundo que lo lleva a nuevos mundos completamente desconocidos y misteriosos para el niño...que le esperara para el futuro (aun se decide si es harem o no)

A new Fourze has arrived at the world of Ben 10 with a mission to be a new hero of the universe while befriending anyone he meets, what adventures will he do only time will tell now, Uchu Kita.

Having returned from a massive adventure in the world of Remnant, Ben, Team RWBY, and the rest of their friends find themselves faced with new challenges at every turn on Earth. Be it villains old and new… or even things that they never imagined to be real. It's going to be a challenge unlike any they've seen before, but they're up for it. It's Hero Time! (Cover Art credit inside)

Bakugo Katsuki, the boy known as being the one who'll make it to U.A, gets knocked down a few pegs when he realizes that he isn't always going to be the strongest; by himself, that is. Midoriya Izuku, abandoned by all, used by all; all because of his quirk. Having no home and no hope, he meets the blonde. What starts off as a one-sided relationship soon blossoms to something more.

As the Holy Grail War commences, the rogue Chronosapien Maltruant forms an alliance with villains Gilgamesh, Shinji and Kirei, one which threatens the multiverse itself. But with the likes of Shirou, Saber, Jeanne, Rin, Sakura and Maltruant's greatest adversary, Ben Tennyson,can all of existence be saved? Or will it be lost forever?