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Ben 10 and Kamen Rider Crossovers
44 Ben 10: Futo Adventures » by omnimegalander Ben Tennyson has come to the city of Futo thanks to a mysterious tip. Seeking out the Narumi Detective Agency, he ends up joining forces with the two-in-one detective against those who would make the city cry. Now, count up your sins because it's Hero Time! Adopted from BigbyTheBigBadWolf.
T, English, Adventure & Mystery, chapters: 6, words: 59k+, favs: 60, follows: 65, updated: 6/8 published: 3/18/2023, Ben T., Akiko N., Philip/Raito S./W, Shotaro H./W
384 Ben 10 Switch On » by CMXB 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.
T, English, Adventure & Sci-Fi, chapters: 67, words: 95k+, favs: 199, follows: 195, updated: 5/8 published: 12/22/2019, [Julie Y., OC] Gentaro K./Fourze
Kamen Rider Alterum (Version 2) by Chris Chronos A Ben-10-themed Kamen Rider fanfiction. This story follows Hiroki Tennyson, a lone wanderer in a world plagued by a zombie virus, who has been chosen by Eunice to become Kamen Rider Alterum. The first chapter should provide sufficient insight into the author's intended direction. [This is a rewritten/ improved version of an older fanfiction. The old one will be taken down soon.]
T, English, Adventure & Sci-Fi, words: 16k+, favs: 6, follows: 7, 11/30/2023, [OC, Eunice] Tsukasa K./Decade, Sougo T./Zi-O
1 Future Collection stories » by Eternal Drakness of Light Just some future stories I will post one day in the coming days. The title explains it.
T, English, Friendship & Adventure, chapters: 4, words: 8k+, favs: 5, follows: 3, updated: 11/13/2023 published: 11/2/2023
Ben 10 x Kamen Rider Challenge by kameriderking Ben 10 x Kamen Rider Challenge
T, English, Adventure, words: 71, 8/1/2023
9 Ben 10: Futo Adventures » by Bigby the Big Bad Wolf Two-Shot Crossover, Up for Adoption. Ben Tennyson has come to the city of Futo thanks to a mysterious tip. Seeking out the Narumi Detective Agency, he ends up joining forces with the two-in-one detective against those who would make the city cry. Now, count up your sins because it's Hero Time!
T, English, Adventure & Mystery, chapters: 2, words: 22k+, favs: 34, follows: 27, 10/31/2022, Ben T., Akiko N., Philip/Raito S./W, Shotaro H./W
1 Ben 10 X Anime: Kamen Rider Omni-X » by Chris Chronos Tribute to the Legendary Superheroes – Ben 10 and Kamen Riders. Due to a certain God's mistakes, the anime universes and Kamen Rider Multiverse have been fused together. Ben Tennyson, the Wielder of Omnitrix, has set off on a multiversal journey to save the multiverse in question from inter-dimensional threats. (On hiatus. Will start again when I find a co-writer)
T, English, Sci-Fi & Fantasy, chapters: 7, words: 71k+, favs: 18, follows: 16, updated: 5/30/2022 published: 3/29/2022, Ben T.
203 The Next Decade » by SuperHeroTimeFan When Tsukasa Kadoya is injured in battle from Dai-Shocker, he lands in the world of Ben 10. On the verge of near death, Ben Tennyson has to take up the burden of being Kamen Rider Decade. With friends looking and a new evil rising, will all be lost? Please like!
T, English, Adventure & Drama, chapters: 47, words: 646k+, favs: 257, follows: 223, updated: 7/3/2020 published: 5/14/2013, Ben T., Albedo, D. Kaito/DiEnd, Tsukasa K./Decade
2 The Alien Gamer of Destiny by AlienTokusatsuDuelistMangaGeek In the description.
T, English, Adventure, words: 280, favs: 2, follows: 3, 3/31/2020, [Ben T., Nico S.]
kaman rider shilfter challenge by psykeroro an challenge to an what-if question i have had an month ago of it being 'what if toei made ben 10'.
T, English, words: 511, favs: 2, follows: 2, 10/19/2017
4 Derailed » by Akino Ame After a careless wish, Ben finds himself in a world where he never existed. Now, if he stands any chance of setting things right, he has to join with four unusual creatures for a time-trippin' ride that will make him wonder what he really should wish for. Meanwhile, Julie meets a young man who has his own plan to save the flow of time... Ultimate Alien/Den-O, slow updates.
T, English, chapters: 2, words: 9k+, favs: 28, follows: 23, updated: 8/8/2014 published: 5/29/2014, Ben T., Julie Y., Momotaros, Yuto S./Zeronos
13 Riders and Aliens: Ultimate Heroes United » by Dr. Exposition When students in Ben's school gets perfect scores in the last midterm and Ben's favorite hangouts start getting replaced by a new fast food franchise, it's up to Team 10 to solve the mystery. Also, another party is also interested in the rise of Batty Burgerz. Could this be another alien conspiracy? Or are other dark forces at work here?
T, English, Sci-Fi & Supernatural, chapters: 3, words: 18k+, favs: 33, follows: 19, updated: 10/26/2013 published: 10/20/2013, Ben T.
4 Everyone, it's Space Hero Time! » by Green Phantom Queen Sidestory to Horseshoes and Hand-grenades and Month of Sundays. After the battle in Kyoto and the weekend in Futo, no one is in the mood to fight again. Unfortunately, the residual Cosmic Energy left behind has gathered evil villains wanting to obtain this new energy. Enter Ben Tennyson, ready to fight old and new foes in an attempt to save Japan from total destruction.
T, English, Adventure & Drama, chapters: 4, words: 19k+, favs: 19, follows: 8, updated: 6/5/2013 published: 5/8/2013
33 Clash of the Two Heroes! » by GreenGlassCannon42 Part 1 of the Diagon Trilogy. See Ben and Gen become better friends as Vilgax starts his endgame with the powers of Diagon! Can they stop him with the help of their freinds or is all lost? Ben/Julie Gen/Yuki IN NEED OF BETA READING
T, English, Friendship & Romance, chapters: 23, words: 79k+, favs: 12, follows: 8, updated: 9/29/2012 published: 8/21/2012, Ben T., Vilgax
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