Ben 10 and Kamen Rider Crossovers
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Ben 10 Switch On by CMXB reviews
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.
Rated: T - English - Adventure/Sci-Fi - Chapters: 11 - Words: 22,135 - Reviews: 37 - Favs: 88 - Follows: 80 - Updated: 11/20 - Published: 12/22/2019 - [Julie Y., OC] Gentaro K./Fourze
The Next Decade by SuperHeroTimeFan reviews
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!
Rated: T - English - Adventure/Drama - Chapters: 47 - Words: 646,000 - Reviews: 196 - Favs: 185 - Follows: 162 - Updated: 7/3 - Published: 5/14/2013 - Ben T., Albedo, D. Kaito/DiEnd, Tsukasa K./Decade
The Alien Gamer of Destiny by AlienTokusatsuDuelistMangaGeek reviews
In the description.
Rated: T - English - Adventure - Chapters: 1 - Words: 280 - Reviews: 2 - Favs: 1 - Follows: 1 - Published: 3/31 - [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'.
Rated: T - English - Chapters: 1 - Words: 511 - Favs: 2 - Follows: 2 - Published: 10/19/2017 - Complete
Derailed by Akino Ame reviews
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.
Rated: T - English - Chapters: 2 - Words: 9,671 - Reviews: 4 - Favs: 24 - Follows: 20 - Updated: 8/8/2014 - Published: 5/29/2014 - Ben T., Julie Y., Momotaros, Yuto S./Zeronos
Riders and Aliens: Ultimate Heroes United by Kamen Rider Chrome reviews
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?
Rated: T - English - Sci-Fi/Supernatural - Chapters: 3 - Words: 18,024 - Reviews: 13 - Favs: 24 - Follows: 13 - Updated: 10/26/2013 - Published: 10/20/2013 - Ben T. - Complete
Everyone, it's Space Hero Time! by Green Phantom Queen reviews
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.
Rated: T - English - Adventure/Drama - Chapters: 4 - Words: 19,753 - Reviews: 4 - Favs: 9 - Follows: 7 - Updated: 6/5/2013 - Published: 5/8/2013
Clash of the Two Heroes! by GreenGlassCannon42 reviews
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
Rated: T - English - Friendship/Romance - Chapters: 23 - Words: 79,901 - Reviews: 10 - Favs: 7 - Follows: 5 - Updated: 9/29/2012 - Published: 8/21/2012 - Ben T., Vilgax - Complete