There were legends of a great power. Legends of a device that could allow one to transform into anyone. But they were just that. Legends. Fables told to children before bed. So, what would happen if that device appeared in the hands of a human who struggled with grades and with his quirk? Well, that would be the story of Denki Kaminari.

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.

Jake, a young hero who possesses the Omnitrix, an alien device that allows him to transform into various powerful beings, crash-lands on Earth and joins forces with the Teen Titans. Together, they face a new wave of alien threats and mysterious villains, learning the true power of teamwork and friendship. As Jake adapts to his new life with the Titans,

Dentre todas as crianças no jardim de infância, havia uma em específico, apelidada de 003, que sempre sonhava em ver como era a verdadeira natureza do mundo fora do jardim. Em um certo dia, ele encontra uma pequena garota de pele vermelha e chifres, ao qual ele prometeu a mesma se casar... Infelizmente, o destino não queria os ver juntos, e 003 foi deixado para morrer... até que...

On a camping trip with his family, young Tommy Pickles' life is changed forever as a pod falls from the sky containing a watch-like device which can change him in to a plethora of different alien creatures. Join Tommy as he learns the secrets of the Omnitrix and works to one day become the hero of heroes. (Tommy x Kimi) (Please enjoy, fav, and review.)

In one world, two thirds of the Extella Trio are having a ball with who may be their greatest partners, Tamamo with an unlucky spiky teen with a mysterious right hand, Nero with a boy with more guts then one hundred spec ops soldiers, but what about the final member? Well she gets flung into a different world and entwines her fate with that of a young watch wearing hero of course!

When our 10 year old hero Ben ten is sent to another universe wheree where ghost are involved, he starts to fight a teeage boy who is half ghost with a one on one battle. But when the half ghost turns back into his alter ego Danny Fenton, Ben starts to explain to him on what happened during his fight with Dr. Animo.

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.

Ben is sent to the world of Earth's Mightiest Heroes! With political and cosmic danger on the rise, it's up to Ben and the Marvel heroes to set things straight. (Tying up loose plot holes. Connecting various other Marvel shows. Cover image from Promsien.)

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)

The Saddest Cry Baby In The World Gets The Most Powerful Weapon Ever (I Own Nothing)

While working under Max Tennyson, Jason comes in contact with an alien device that grants it's user the power to transform into aliens, The Omnitrix. He begins fighting crime and anyone after the power he now has. Slowly becoming the greatest hero in the universe. (Harem) [Dc/Young Justice, Ben 10, Transformers, and maybe more crossover]

You are the hardcore fan of ben 10, you watch all season of ben 10 without knowing something you die and when you woke up you in the body of vilgax inside his Battleship in the world of mobile suit gundam seed remaster and gang weapons, advanced technology, robot Army, psyphon, 88 and 66 What is you wake up 1 days before the event the story and the timeline begin

In an alternate take on the Fate/stay night universe, nine-year-old Jiron, a boy equipped with the Complete Omnitrix and its Master Control, finds himself thrust into the chaos of the Holy Grail War when a dark intruder threatens his life and that of his mother. Instead of Shirou Emiya, it is Jiron who is saved by the legendary magus Kiritsugu Emiya and his Servant.(OC Self-insert)

It started with an alien device that did what it did, stuck itself upon his wrist with the secrets that it hid. Now Bruce Wayne has the power to forever change Gotham with transformations into aliens from beyond the Galaxy, how will the city of crime react to the new vigilante who carries in his wrist the universe?

A battle with Darkstar caused Ben to get sent another universe, the Clover Kingdom. In his quest to find Darkstar and return home, Ben will across new enemies, but also form new friends and allies as well, such as the Black Bulls. In order to find Darkstar and stop his plan.

It started when an alien device did what it did. Izuku Midoriya found a strange device on the beach one night after training when the device jumps onto his wrist. It grains him abilities from beings from other worlds. Watch him as he and his friends go through their adventures on Earth and Space in: The Alien Hero: Deku 10

Yukiko doesn't wish for a lot, but what she does want 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.

El destino tras haberle negado su sueño, un pequeño ser extiende su mano en aquella chica la cual sería la balanza que mantendría al universo en equilibrio con su ahora poder aferrado a su brazo izquierdo. Explorando su viaje desde el primer día que se le dio el Omnitrix hasta el final donde se mantendría en pie como la última esperanza.

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.

After making so many mistakes in his life. Young John Doe doesn't believe there is any hope for him being anything else but a tyrant and a monster. A strange alien device attaches itself to his arm. Now he must fight any evil from both earth and outer space.

While looking for Charlie. Scarleena gets teleported to some arena and teams up with Gen tennyson and other heroes

Rito Yuuki thought his life wouldn't get strange when he was ten and a comet came down to Earth on that starry Friday Night. But now, at the age of fifteen, and is known as the Galaxy's Greatest Hero. There's one minor problem, he can't confess to his childhood friend, Haruna. And to make matters worse, he somehow ends up engaged to the Princess of Deviluke. (Full Harem in Ch: 2)

Imagine a version of the Pokémon world where Ash Ketchum came into possession of the most powerful device in the world of Ben 10. Now imagine that written by some psycho. Yeah... Pokémon/Ben 10 crossover, sort of. Weird censoring. Tell me what you think. Due to this websites regular glitches/breakdowns, chapters and status updates will be posted on DeviantArt. Username: Ohirume1

When A Certain Lady Gets A Certain Alien Device (I Own Nothing)