Ben 10 Crossovers
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The Unidentified Lifeform by Chris Chronos reviews
A Comedy/action crossover story featuring Ben Tennyson as an underground hero in Saitama's world. Comedic events happen around our protagonist as he struggles to mind his own business and achieve peace and quiet. Following his own ideals, will he be able to pull it off as a hero, too?
Crossover - Ben 10 & One Punch Man/ワンパンマン - Rated: T - English - Humor/Sci-Fi - Chapters: 16 - Words: 160,359 - Reviews: 73 - Favs: 72 - Follows: 81 - Updated: 12/24 - Published: 6/18/2022 - Ben T., Genos, OC
Aliens Among Witches by Rodimus973 reviews
Luz isn't the only one who ends up going to the Boiling Isles. She is joined by her cousin, Miguel Noceda, who possesses an alien watch he found many days ago and it lets him transform into different aliens. With Luz and his Witch friends by his side, Miguel will learn many secrets and use the Omnitrix to battle many foes that intend to cause great harm to him and his loved ones.
Crossover - Ben 10 & Owl House - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 3,262 - Reviews: 4 - Favs: 15 - Follows: 15 - Published: 12/24 - [OC, Skara] Vilgax, Luz N.
Gamer In A Bottle by Infinitrix reviews
Well damn i guess im stuck in this dark void im getting reincarnated as a WHAT? Featuring a gamer that wants to fuck shit up and that is a genie stuck in a bottle (for now) Rub this Story a bit and see whats inside
Crossover - Ben 10 & High School DxD/ハイスクールD×D - Rated: M - English - Adventure/Humor - Chapters: 2 - Words: 1,259 - Reviews: 13 - Favs: 40 - Follows: 72 - Updated: 12/24 - Published: 12/16
Heroes Never Die It's Hero Time by Guardian-Sigil reviews
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.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 89 - Words: 1,853,861 - Reviews: 4801 - Favs: 2,126 - Follows: 2,108 - Updated: 12/24 - Published: 11/26/2019 - Kevin, Izuku M., Ochako U., 1-A Students
True Omniverse by CMXB reviews
In the vast omniverse some have seen many different Bens with omnitrix were but now it's time to show the others.
Crossover - Ben 10 & X-overs - Rated: M - English - Adventure/Sci-Fi - Chapters: 69 - Words: 66,503 - Reviews: 259 - Favs: 77 - Follows: 57 - Updated: 12/23 - Published: 11/27/2021
My Omni Academia by Axolote10 reviews
Después de que Ben Tennyson se entere de que uno de sus hijos necrofriggianos volvió a la tierra para verlo se haría cargo de el pero en una batalla perdería a las personas que ama a excepción de una pequeño hijo y durante la pela un accidente sucedria lo que mandaría a otra dimensión, ahora deberá tomar una descion seguir siendo un Héroe y un padre a la vez o simplemente un padre.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - Spanish - Sci-Fi - Chapters: 7 - Words: 58,795 - Reviews: 8 - Favs: 20 - Follows: 22 - Updated: 12/23 - Published: 9/22/2021
The Ultimate Ben 10's First Wakandan Kwanzaa by GhostAlleyCat
Man-Ape has arrived in Bellwood and now Ben 10 would have to leave his best friend's Kwanzaa party to team up with the Black Panther.
Crossover - Ben 10 & Ultimate Spider-Man - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 2,974 - Published: 12/22 - [Ben T., Kai Green] [Peter P./Spider Man, M.J Watson] - Complete
A Hero's Life Reboot by Feedbackblast18 reviews
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.
Crossover - Totally Spies & Ben 10 - Rated: K+ - English - Humor/Sci-Fi - Chapters: 26 - Words: 156,373 - Reviews: 30 - Favs: 34 - Follows: 37 - Updated: 12/21 - Published: 9/21 - Alex, Jerry, Ben T.
Chan in Bellwood (Rewrite) by Inkaliber reviews
Jade has been having trouble in school lately. With parents as busy as hers, who could really blame her? With all this stress and uncertainty brought about by their daughter's behavior, what will her parents do? Send her to her uncle Jackie in... Bellwood? How will things change when a certain family gets involved in the lives of the Chan Clan from the very Beginning?
Crossover - Jackie Chan Adventures & Ben 10 - Rated: T - English - Adventure/Family - Chapters: 8 - Words: 97,288 - Reviews: 83 - Favs: 121 - Follows: 118 - Updated: 12/21 - Published: 11/14/2020 - [Jade C., Ben T.] [Jackie C., Viper]
A Mad And Curious Meeting by GoldGuardian2418 reviews
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. :)
Crossover - Ben 10 & Batman: The Brave and the Bold - Rated: K+ - English - Adventure/Friendship - Chapters: 5 - Words: 8,065 - Reviews: 9 - Favs: 6 - Follows: 5 - Updated: 12/21 - Published: 11/13
The Invincible 10 by Cloud Prince J'onzz reviews
After canceling her engagement to Ben Tennyson; Princess Looma was beginning to feel, rather sour. She was the princess of Khoros. Nothing was beyond her. Yet, she let two potential husbands, slip through her fingers. But can a chance encounter, with a certain Viltrumite; change all of that?
Crossover - Ben 10 & Invincible - Rated: T - English - Adventure/Romance - Chapters: 1 - Words: 6,903 - Reviews: 2 - Favs: 4 - Follows: 6 - Published: 12/20 - Ben T., Princess Looma
Priestess 10 - Destroy All Aliens by SilverSoulmmc reviews
Almost two months after the summer vacation of a lifetime ended, Ben and the others have returned to their normal lives. However, when the Omnitrix seems to be going haywire again, Ben finds himself thrown into yet another problem: One that threatens to destroy both his home and everyone he loves.
Crossover - Ben 10 & Persona Series - Rated: T - English - Family/Adventure - Chapters: 6 - Words: 27,126 - Reviews: 40 - Favs: 44 - Follows: 34 - Updated: 12/19 - Published: 10/15 - Ben T., Gwen T., Max T., Yukiko A. - Complete
Omni Hero: Deku X by blazeninja0 reviews
When Izuku was on a road trip with his grandfather and his two cousins he he found a watch that gave him powers. Izuku X Harem A Rewrite of my original Omni Hero Deku
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 27,213 - Reviews: 8 - Favs: 63 - Follows: 71 - Updated: 12/18 - Published: 11/26 - Izuku M.
A Weird Watch In Gotham by Syncrosoul reviews
Ben Tennyson ended in the crime riddled city of Gotham. The only thing stopping Gotham from collapsing is the Dark Knight and his family. Both are heroes with differing ideologies. So what could possibly go wrong when the most paranoid man meets the most powerfull teenager?
Crossover - Batman & Ben 10 - Rated: T - English - Chapters: 2 - Words: 9,430 - Reviews: 14 - Favs: 55 - Follows: 64 - Updated: 12/18 - Published: 8/16 - Bruce W./Batman, Damian W./Robin, Ben T., Prof. Paradox
Jen 10: alien of Fairy Tail by Fishcake10 reviews
Jen 10 has fallen into a wacky world of magic and mayhem but luckily the Fairy Tail guild will be her home for now Fem Ben fic because why not
Crossover - Ben 10 & Fairy Tail - Rated: T - English - Adventure/Humor - Chapters: 6 - Words: 9,721 - Reviews: 6 - Favs: 24 - Follows: 21 - Updated: 12/17 - Published: 3/18 - Ben T., Erza S., Lucy H., Natsu D.
Death city's Red Beast and Blue undead souls by Artzilla406
a red soul, dwells in a loud mind, and a insane body, a blue soul, Dwells in a reanimated mind, and a dead body, join Zack and koan as they venture into Death City and face agents the kishens, evil witches and the madness that comes with it.
Crossover - Ben 10 & Soul Eater - Rated: M - English - Fantasy/Supernatural - Chapters: 5 - Words: 51,911 - Favs: 6 - Follows: 6 - Updated: 12/16 - Published: 11/28
Ben 10 Omniverse and Irken Outcast by parzival2.0
List of new episodes between canon and a few big differences(Invader Zim Irkenoutcast and Ben 10 Omniverse)
Crossover - Invader Zim & Ben 10 - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 6,174 - Favs: 1 - Follows: 1 - Updated: 12/16 - Published: 7/16
The Osmosian in Marvel by Degenerate King reviews
Kevin Levin finds himself in the Marvel Universe. It was a matter of time till he figured his way through things and adapt himself. Join him as he makes his way through a world of enhanced beings. Why do they call him a mutant though? What does it even mean? I own nothing. All belong to their respective owners.
Crossover - Ben 10 & Marvel - Rated: M - English - Sci-Fi - Chapters: 7 - Words: 12,801 - Reviews: 5 - Favs: 41 - Follows: 41 - Updated: 12/15 - Published: 11/10 - Kevin, F. Hardy/Black Cat, Apocalypse, Nick Fury
New Threat, New Lanterns by Redbat132 reviews
When mysterious white energy hits different parts of the galaxy, things get out of control in a few of the main Lantern home planets. Will the Lantern team figure out how to solve this in time? Collaborated with Alvaxerox.
Crossover - Ben 10 & Green Lantern: The Animated Series - Rated: T - English - Sci-Fi/Hurt/Comfort - Chapters: 11 - Words: 29,759 - Reviews: 26 - Favs: 7 - Follows: 7 - Updated: 12/15 - Published: 2/12 - Max T., No Watch Ben, Hal J., OC - Complete
Ben 10: Hero Force by DBZpower197 reviews
It had now been 3 years since Ben took a chance at a normal life. However, history had a tendency to repeat and life had a tendency to be unfair. With the news of someone person putting in a good word for him at UA, Ben would once again don the Omnitrix and face the challenges ahead all the while having one question in mind: "Could he meet the legacy of that watch once again?"
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 35 - Words: 409,665 - Reviews: 639 - Favs: 830 - Follows: 930 - Updated: 12/15 - Published: 4/19/2021 - Ben T., Izuku M., Momo Y., 1-A Students
A Lost Hero's Fairytale by Ultimate10 reviews
Ben Tennyson has awakened in the magical world of Earthland with amnesia, no memory outside of his name. Follow our lost hero as he travels across Fiore, making new friends and enemies, catching the interest of certain people, and rediscovering who he truly is. {AU}{Ben x Harem}{No nerfing!}{The Ink Tank power rankings}
Crossover - Ben 10 & Fairy Tail - Rated: M - English - Fantasy/Romance - Chapters: 11 - Words: 124,061 - Reviews: 356 - Favs: 567 - Follows: 645 - Updated: 12/13 - Published: 2/18 - [Ben T., Lucy H., Juvia L., Erza S.]
The Mandalorian: The Chronicles of Lun 10-Original Series by Vgn Golley reviews
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.
Crossover - Ben 10 & Mandalorian - Rated: M - English - Sci-Fi/Adventure - Chapters: 36 - Words: 876,795 - Reviews: 141 - Favs: 112 - Follows: 96 - Updated: 12/12 - Published: 12/23/2020 - OC, The Mandalorian/Din Djarin, The Child/baby yoda
The Alien Hero: Deku 10 by Pixel's Fanbook reviews
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
Crossover - My Hero Academia/僕のヒーローアカデミア & Ben 10 - Rated: M - English - Adventure/Sci-Fi - Chapters: 62 - Words: 662,025 - Reviews: 1028 - Favs: 1,316 - Follows: 1,329 - Updated: 12/12 - Published: 1/25/2020 - Lucy M., Izuku M., Ochako U., Momo Y.
Korea's Omnitrix Wielder by ultra kurama reviews
Nathaniel Smith was your average teenager who also happened to be a fan of the Ben10 series. Now, armed with an Omnitrix of his own, he and his friends are going to go adventure after adventure in search of establishing peace.
Crossover - Ben 10 & Manhwa/Korean Comics/만화 - Rated: M - English - Supernatural/Adventure - Chapters: 5 - Words: 7,980 - Reviews: 13 - Favs: 33 - Follows: 34 - Updated: 12/12 - Published: 6/5 - OC
My Alien Academia by The Incredible Muffin reviews
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.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Friendship - Chapters: 58 - Words: 533,478 - Reviews: 1812 - Favs: 2,642 - Follows: 2,694 - Updated: 12/12 - Published: 11/26/2019 - Ben T., Izuku M.
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