Ben 10 Crossovers
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Superheroes Extraordinarae by Degenerate King reviews
Escaping out of Null Void, Kevin Levin hadn't thought to be embroiled into another world full of turmoil. Also why is Tennyson's cousin here? Stuck in a world full of capes, giant monsters who were invulnerable to anything, he does his best. Fight or die. He will do his best for sure. Warning: I own nothing, all belong to their respective creators. Rated M for a reason.
Crossover - Ben 10 & Worm - Rated: M - English - Fantasy - Chapters: 8 - Words: 19,044 - Reviews: 7 - Favs: 51 - Follows: 68 - Updated: 6/29 - Published: 6/4 - Kevin, Gwen T., Skitter, Panacea
Boku no Hero Alien force Season 1 by benguin reviews
This story is another ben 10 crossover. Follow my other story Mass effect 10. I would not stress this enough to say That I do not own both series and manga. which is of course Ben 10 and My hero acidemia, They both belong to there respected owners. Please support the official release. I also Cross Post on WattPad (Commander Benguin:@user07982858) and A03 (Commander Benguin010).
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 23,897 - Reviews: 24 - Favs: 38 - Follows: 43 - Updated: 6/28 - Published: 4/14 - [Ben T., Itsuka K.] Izuku M., 1-B Students
Omni-Kaiju by SJMS09 reviews
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.
Crossover - Ben 10 & Kaiju No. 8 - Rated: M - English - Sci-Fi - Chapters: 4 - Words: 27,433 - Reviews: 17 - Favs: 38 - Follows: 40 - Updated: 6/28 - Published: 6/7 - Ben T.
Avengers: Agent-10 by Masamune X23 reviews
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?
Crossover - Ben 10 & Avengers: Earth's Mightiest Heroes - Rated: M - English - Sci-Fi/Adventure - Chapters: 30 - Words: 324,037 - Reviews: 875 - Favs: 1,166 - Follows: 1,211 - Updated: 6/28 - Published: 1/1/2019
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: 91 - Words: 1,894,875 - Reviews: 5003 - Favs: 2,236 - Follows: 2,236 - Updated: 6/28 - Published: 11/26/2019 - Kevin, Izuku M., Ochako U., 1-A Students
Ultimate Alien: Primarch Force by Pravus666 reviews
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.
Crossover - Warhammer & Ben 10 - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 123,024 - Reviews: 118 - Favs: 194 - Follows: 219 - Updated: 6/27 - Published: 3/16 - Primarch/s, Ben T., Gwen T.
The Crystal Brothers by Jss2141 reviews
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.
Crossover - Ben 10 & Steven Universe - Rated: T - English - Adventure/Supernatural - Chapters: 8 - Words: 11,664 - Reviews: 12 - Favs: 36 - Follows: 33 - Updated: 6/27 - Published: 3/31/2023 - Pink Diamond, Pearl, Rose Quartz
Class 1-A Watches Ben 10 by Celestial Empress Sandra reviews
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.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Humor/Adventure - Chapters: 6 - Words: 60,643 - Reviews: 131 - Favs: 301 - Follows: 339 - Updated: 6/27 - Published: 5/9 - Toshinori Y./All Might, Shouta A./Eraserhead, Nemuri K./Midnight, 1-A Students
Omni Heroes by AutoHunterJ49 reviews
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.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 11,267 - Reviews: 1 - Favs: 9 - Follows: 10 - Published: 6/27 - Gwen T., Max T., OC
Omni-Piece by The True Writer. Zerthin reviews
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)]
Crossover - One Piece & Ben 10 - Rated: K - English - Adventure/Fantasy - Chapters: 36 - Words: 59,618 - Reviews: 170 - Favs: 184 - Follows: 172 - Updated: 6/27 - Published: 12/22/2019 - Luffy, Zoro, Sanji, Ben T.
The Baddest Ben Tennyson's Special Guide to Superheroics by Chris Chronos reviews
[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.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Humor - Chapters: 3 - Words: 41,365 - Reviews: 8 - Favs: 35 - Follows: 33 - Updated: 6/27 - Published: 6/12 - Ben T., Momo Y., Shouta A./Eraserhead, 1-A Students
The First Second Chance by Dracorex.the.1steBorn reviews
A guy gets reincarnated but it's God,Zeus or Odin he doesn't care what you call him, first time doing it so there will be unexpected things happening.
Crossover - Ben 10 & Anime X-overs - Rated: T - English - Fantasy - Chapters: 2 - Words: 3,599 - Reviews: 1 - Favs: 2 - Follows: 2 - Updated: 6/27 - Published: 3/8
Ben 10 & She-Ra Heroes of Power by Hero Central reviews
An investigation into space time anomalies lands Ben Tennyson and his partner Rook Blonko on the mysterious and magical planet of Etheria, they cross paths with Adora and her friends and choose to do what they can to free Etheria from the tyrannical grip of the Horde. Its Hero time,For the Honour of Greyskull!
Crossover - Ben 10 & She-Ra and the Princesses of Power - Rated: T - English - Friendship/Supernatural - Chapters: 29 - Words: 438,230 - Reviews: 675 - Favs: 438 - Follows: 431 - Updated: 6/27 - Published: 10/18/2020 - Ben T., Rook, Adora/She-Ra, Princess Glimmer
Omni-Punch by SJMS09 reviews
Ben Tennyson, the Hero of Heroes, finds himself in a new world full of heroes and monsters after escaping from the Null Void. In this new world, Ben finds himself becoming friends with an individual who has the power to defeat any opponent with just one punch.
Crossover - Ben 10 & One Punch Man/ワンパンマン - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 25,411 - Reviews: 10 - Favs: 39 - Follows: 42 - Updated: 6/26 - Published: 5/15 - Ben T., Saitama, Genos
Ark of Viltrum by Mustard01 reviews
The last of his kind, stuck on a new planet, filled with weaklings. Now he gets to travel this new land. Whatever shall he do now except fight the beings that annoy him. Viltrumite Naruto
Crossover - Naruto & Ben 10 - Rated: M - English - Adventure/Romance - Chapters: 3 - Words: 18,521 - Reviews: 62 - Favs: 392 - Follows: 477 - Updated: 6/26 - Published: 4/13/2023 - Naruto U.
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: 62 - Words: 566,507 - Reviews: 1909 - Favs: 2,791 - Follows: 2,859 - Updated: 6/26 - Published: 11/26/2019 - Ben T., Izuku M.
Return of the Night Furies by Amit Barabi
After the Omniverse War, Ben became immortal and outlived his loved ones. Now, he travels to the needed universes and makes the necessary decisions. It takes place within the Amit Cinematic Universe long before Gwen Stacy became G-Morph. Read "Rise of G-Morph and the Amazing Spider-Man" for context.
Crossover - Ben 10 & How to Train Your Dragon - Rated: T - English - Adventure - Chapters: 1 - Words: 1,112 - Favs: 1 - Follows: 1 - Published: 6/25
Miraculous: Tales of Ladybug, Catnoir, and the Shapeshifter by GojiraGodzillafan1 reviews
Paris, the city of love. Things used to be normal around this beautiful city, but then, darkness rises from unexpected shadows and now, the city needs hero's to save the day, and fortunately, three hero's will rise to the challenge, but one is unlike the others Disclaimer I own nothing in this fanfic except for my oc and His mom
Crossover - Ben 10 & Miraculous: Tales of Ladybug & Cat Noir - Rated: M - English - Romance/Adventure - Chapters: 4 - Words: 29,950 - Reviews: 2 - Favs: 16 - Follows: 15 - Updated: 6/25 - Published: 12/10/2023 - OC, Marinette D-C./Ladybug, Azmuth, Adrien A./Cat Noir
ben 10 hero of heroes by Ben 1000000 reviews
UA high school was just a normal high school, elite, and best school in countey, with graduate being in top 10 heroes, nothing out of but one day an mysterious trsansfer student arrives. why would he go half way across the world to join UA and what are his intentions.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Chapters: 1 - Words: 474 - Reviews: 3 - Favs: 8 - Follows: 9 - Published: 6/25
When the Hands Strike Ten by LittleLagoon reviews
With the arrival of a young hero and his peculiar watch, the world of Remnant is faced with an unprecedented threat. Are the Grimm and their queen responsible for the impending destruction, or is something even more sinister lurking? For better or for worse, Ruby Rose will witness it all from the front row.
Crossover - Ben 10 & RWBY - Rated: T - English - Chapters: 3 - Words: 8,164 - Reviews: 14 - Favs: 63 - Follows: 67 - Updated: 6/24 - Published: 6/16 - Ben T., Ruby R., Weiss S.
Omni-Titan by SJMS09 reviews
After defeating Vilgax once and for all, Ben finds himself transported to another universe that is full of giant man-eating monsters known as Titans, and on top of that, Ben is 10 years old and has old omnitrix again
Crossover - Ben 10 & Attack on Titan/進撃の巨人 - Rated: M - English - Sci-Fi/Fantasy - Chapters: 9 - Words: 57,072 - Reviews: 13 - Favs: 47 - Follows: 52 - Updated: 6/24 - Published: 4/1 - Ben T., Eren Y., Mikasa A., Armin A.
Ben 10 Playtime by TopModelCollectorY2K reviews
After getting a letter saying that the employees of Playtime Co are 'still alive', Ben, Gwen and Max head to Playtime Co to get to the bottom of this. But, they soon learn that a more sinister force is at play. Ben 10 belongs to Man of Action and Cartoon Network Poppy Playtime belongs to Mob Entertainment
Crossover - Ben 10 & Poppy Playtime - Rated: M - English - Sci-Fi/Horror - Chapters: 4 - Words: 5,286 - Reviews: 4 - Favs: 16 - Follows: 17 - Updated: 6/24 - Published: 5/27 - Ben T., Gwen T., Max T., Poppy Playtime
PHANTOM FORCE, Goin' Ghost Retold by DarkShadowGames451 reviews
DP AU! Mass X-over! It's been a year since the accident, and Daniel Fenton has found a balance between his teenage life and secret life as a superpowered ghost hunter with the help of his older sister. But he will face new challenges and greater threats with new friends and allies while discovering his destiny as a liminal halfa. But will it all be enough to save the world?
Crossover - Danny Phantom & Ben 10 - Rated: T - English - Supernatural/Drama - Chapters: 4 - Words: 54,670 - Reviews: 10 - Favs: 14 - Follows: 18 - Updated: 6/23 - Published: 6/8 - Danny F., Valerie G., Jazz F., Max T.
Ben 10: Earth's Mightiest Heroes by Firestorm808 reviews
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.)
Crossover - Ben 10 & Avengers: Earth's Mightiest Heroes - Rated: T - English - Adventure/Humor - Chapters: 22 - Words: 79,031 - Reviews: 603 - Favs: 1,205 - Follows: 1,284 - Updated: 6/23 - Published: 4/21/2018 - Ben T.
Mass Effect 10 Ben Second Chance by benguin reviews
Here is a world for both Ben 10 and mass effects Fans, but basically it like any story where ben world is gone and lives in another universe to move on from the pain. I do not Own Ben 10 and Mass effect. They are owned by they respected properties of Man of Action and Bioware. Please support the official release.
Crossover - Ben 10 & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 18 - Words: 53,355 - Reviews: 29 - Favs: 57 - Follows: 60 - Updated: 6/21 - Published: 2/15 - [Ben T., Miranda L.] Ship, Shepard
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