What would happen if the greatest hero in the universe... was stuck in a world of heroes just as amazing as him? Follow the story of the new Alien Hero. Watch him make a great many friends! And just as many enemies. Only time will truly tell how both universes will be shaped by the arrival and absence of this teen hero.

Louise, mocked as "Louise the Zero" for her magical failures, summons a mysterious device called the Omnitrix during the Familiar Summoning Ritual. Confused and panicked, she meets the enigmatic Professor Paradox, who explains its power. As she grapples with her new abilities, Louise's journey from zero to hero begins, with adventures and challenges awaiting her.

Omni-Boys Short and Extra content that I can’t fit in my regular story. Includes some filler stuff and alternate openings.

During a battle, Ben and Gwen Tennyson are sent through the Null Void into a new universe, one much... quirkier than their own. Follow the two cousins as they adapt to their new home and navigate the new challenges it brings, which may have more of an impact on both of them than they ever could have imagined. All together now... IT'S HERO TIME!

After losing to the strongest hero, Garou woke into a world so alien yet so similar. Trapped inside another, he must set out with unlikely companions to uncover the secrets of his transmigration into a world where aliens fill the stars and evil from multiple timelines endanger the universe in his journey down the path of self-discovery. By the author of The Hunter Amongst Villains.

What if, the day he awoke from the coma, before even reaching Atlanta, Rick came across the prototype of the Omni Matrix, changing his life even further than the state of the world around him already had.

Three boys out on an adventure get a bit more than what they bargained for when they end up at the Grant Mansion by accident. Written alongside with Redbat132. :)

Izuku Midoriya, previously quirkless, was offered One For All by the greatest hero, but during training, he discovered the Omnitrix. Now his on the journey to be the greatest hero, the Symbol of Peace and The protector of Earth. It's Hero Time!

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).

They had traveled to Ben's dimension with the hope of getting some much needed R&R, while also planning their next move against the Cabal. However, it would seem their enemies had already struck, one in particular, who is about to give put a new meaning to the term 'Technological Warfare'

Luna Loss was your average little girl until one day she was kidnapped by an alien warlord after obtaining a watch-like device that allows her to transform into aliens. After escaping into space for about two years, Luna had lost all hope of going back home...but maybe a certain Mandalorian and an alien baby Jedi could help her return to Earth? Rated M-language violence and blood.

Anne and Dereck were just normal kids enjoying their average lives, until one day, they were forced by their friends to steal a musical box, and a pair of strange watches fell down from the sky as they were then transported into another world. Now watch as the kids live among the Frogs, go on adventures, and learn secrets from their Omnitrixes! Full summary in the first chapter.

A shape-shifting alien hero, eager to see 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.

Yukiko doesn't wish for a lot, but what she does doesn't seem like much to others. All she wants is to celebrate her joint birthday with Ben and Gwen, and to have the Tennysons enjoy their first time in Inaba. Unfortunately, Yukiko is unaware that the holidays are known for opening up old awkward family wounds. Oh, and rouge alien attacks too.

Stranded in an unknown world, Ben must fulfill his destiny here and change history for the better. Cover image from Promsien.

When something as simple as a change direction causes Jack to come into the possession of one of the most powerful pieces of alien technology, the misadventures and saga of an evil-genius coming into his own, and the rise of his own Legion to battle against all foes both on and off planet soon begins. Rated M for Mature Themes.

In a world full of giant monsters known as Kaiju, young Ben Tennyson finds himself teaming up with a man who has the ability to transform into a Kaiju. Together, the two will rise through the ranks of the Defense Force and stop all of the evil Kaiju for good.

After a few years of peacefulness Ben Tennyson engages his nemesis in another battle for the fate of the universe but their clash results in him ending up in a world where heroes and villains constantly battle and aliens aren't citizens on earth. Will Ben be able to change this new world for the better like he did on his earth or will this world's greater evils bring him down?

One would think that in a world where everyday people possess impossible abilities nothing would really be a surprise. Izuku Midoriya, who upon the age of four was diagnosed as quirkless, was denied of his dream of become a hero that can save everyone with a smile. But fate gives him a chance; allowing him access not to one but a universe of powers and abilities.

What happens when in a Hail Mary to destroy Vilgax in their final battle, that Ben is sent hurtling across space-time throughout the Omniverse; and finds himself not only in a different one entirely...but 30,000 years in the future...Well, strap in as Ben enters into the Great Crusade and battles against the Ruinous Powers. Rated M for Mature Themes and Violence.

Earth, a planet unlike any other the diamonds had come across in their conquest of the galaxy. Not only was it a planet with it's own inhabitants known as "humans" but apparently it was able to create two gems unlike any that had ever been created before. Gems made entirely of gem rock and being "males" instead of females.

Class 1-A and a handful of teachers are whisked away to learn about the flaws of their hero society and beliefs in heroes in general. And so, two multiversal creatures show them the flaws of their hero society by learning proper hero lessons from the most unlikely place... A ten-year-old boy with a fancy watch on his wrist.

The Tennyson twins were expecting to go on a normal summer vacation with their family, Not having to be reminded about being Quirkless. But that all changed when an alien space pod crashed down on their campsite while carrying a pair of strange devices called the Omnitrixes. Now they have the chance to finally live out their dreams of becoming heroes.

A Ben 10/One Piece crossover; I woke up this morning with this on my mind, and I had to share it with you all! I hope you enjoy. It's going to be a task I hope you'll enjoy. [Bonus: Ben will have the Ultimatrix (Well an O.C version called the M-Model; He also has the Haki's; all three. but he'll have to get training to access them full time)]

[A Ben 10 X MHA Crossover Fanfiction] Our protagonist - The shapeshifting monster - Ben Tennyson is many things: a butler, a chef, a villain, a criminal, and even a vigilante. His actions blur the lines between good and evil, raising the question: is he a hero or a villain? Perhaps so often no one can really find out what's going on in his mind that defies definition.