Ben was honestly shocked when his mind was seemingly sent back in time. He was just getting used to the super-powered device known as the Omnitrix. With that fateful moment soon approaching, however, nothing could stop him from being the greatest hero ever!... Except the strange girl replacing his cousin.

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.

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 a powerful device called the Omnitrix clamps itself onto Izuku midoryia, he must learn to use his powers to help him on his journey of becoming a hero. Will he be able to make it to U.A, or will he fall to an evil warlord bent on universal conquest?

Ben Tennyson is your average 15 year old, but what happens when he finds the strongest device in the universe. Will he be able to do what it takes to rise to the occasion as a hero or will he fail, before he can even begin

Omniverse/Tamers; sequel to Heroes and Humanity. A little galvan named Albedo is back, and he has a couple of problems: Ben Tennyson is trying to kill him, no one will let him leave this silly planet to get away from him, and everyone in Japan is angry with him. Why did Fridge, Swamps and Hugh think moving him back to West Shinjuku was a good idea?

Someone recreates the Omnitrix and Plumbers in order to try and show humanity where quirks truly came from, and who the real monsters are. Meanwhile, an old evil lies in wait for the 2 powers he never got the chance to try and take. Izuku the only quirkless kid to apply to the UA hero course, now has to bare the wait of the world on his shoulders.

Where the Aligned continuity of Transformers meets the Classic continuity of Ben 10 after a trip to Earth doesn't go as planned. The main crew crashlands on Earth, just not their Earth. And that's not the only difference. May the dimensional dilemma ensue!

Here we'll go into the short stories of Ben 10 meets DC Superhero Girls (mix of the 2 seasons and the movie)

It's been a couple of months since The Investigation Team solved the case and returned peace to their town of Inaba. Yukiko Amagi was looking forward to spending the upcoming summer with her friends, but it seemed that her parents had other plans for her, and it involved sending her to America for a Summer Road Trip with relatives she's just learned about.

Ben 10 x Kamen Rider Challenge

Rachel and Sasha have a wonderful family of aliens and their uncles, but when one of their uncles vanishes after getting a mysterious message in the mail, the sisters go to find out what really happened and find their uncle. Will they find the answers they seek? What secrets could Poppy Playtime be hiding? *Cowritten with robotman25. :)*

A shape-shifting alien hero, eager to explore the universe after saving it. A human-gem hybrid, burdened by his inheritance, looking to discover himself. When Ben Tennyson and Steven Universe realize they're both going on a road trip, they decide to explore the universe together.

When the destroyed Omnitrix falls into the ocean to repair itself, one boy is destined to be the world's greatest hero. On this planet and more!

A soul with the heart of a hero. That is who Ruby Rose is. Inspired by her mother she sets to become someone that can save anyone and luckily enough for her the connection to her mother gives her an entirely new tool. The Omnitrix has landed in the hands of Ruby and with Beacon closing down she must master this watch alongside new allies to become an alien superhero

Waking up against grass in the middle of a park? Weird but I can deal. Waking up in a different body? Still weird, but atleast I'm taller. Waking up with an Ultimatrix on my arm? Well fuck everyone else, I'm winning! Waking up in Brockton Bay? ... Well shit. SI into Worm with an Ultimatrix. I'm kinda an asshole though.

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)

Ben was given the master control to defend earth from invasion, but Azmuth soon saw it was a losing battle. The omnitrix was sent to a separate dimension to keep it from the wrong hands. Now, Izuku Midoriya is the bearer of the watch with the master control still unlocked. Now he uses its powers to help as many people as he can but doesn't know of the main function, transformation.

Albert Wesker, Doctor Doom and Vilgax work together to Conqueror several worlds.

Lincoln found this watch that allows him to turn into 10 different aliens. He'll use his new powers for good with the help from Clyde and Ronnie Anne.

Lincoln Loud, the Omnitrix Team and the Omnitrix itself are as heroic as always. Join Lincoln and the Omnitrix Team as they go through adventures with heroic friends, make new ones, and fight to save the world and other worlds like it. (Inspired by The Loud 10 by GokuSannin9000).

Freed from his imprisonment Aggregor plots once again to become all-powerful. It's up to Ken Tennyson and his allies to track and take down the Osmosian clone. However, the journey they are about to undertake is long and treacherous. Our heroes will have to traverse into the greater omniverse, beyond the likes of Professor Paradox can travel.

Qué ocurre cuando Ben 10, héroe de héroes, es arrojado al Vacío y, al salir, se encuentra en un mundo completamente nuevo. Con sus propios héroes y villanos.

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

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)