Transformers/Beast Wars Crossovers
Filters
2.5K | Page 1 2 3 4 11 .. Last Next »

My Prime Academia by IS6A6E reviews
After sacrificing himself to bring life back to Cybertron, Optimus Prime wakes up on Earth, but not the one he's come to know. And as a human teenager! In this world of Quirks and Heroes, Optimus must navigate this treacherous new life of his, while struggling to let go of his old one. In the shadows, a sinister plot begins to unfold, with the Last Prime at the center of it all.
Crossover - Transformers/Beast Wars & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 9 - Words: 89,523 - Reviews: 35 - Favs: 101 - Follows: 93 - Updated: 51m - Published: 9/20 - [Optimus Prime, Momo Y.] Izuku M., Toshinori Y./All Might
Maya and Miguel Technosaur Warriors by avisdouglass4
The Baranoia empire led by King Mondo invades Cincinnati Ohio with a army of Mega Virus Monsters for their conquest for turing the world into their own mechanical empire,Tom Servo,head of the Technosaur recruit a group of kids to stop the Baranoia,they are the Technosaur Warriors!
Crossover - Transformers/Beast Wars & Maya and Miguel - Rated: K - English - Humor/Adventure - Chapters: 16 - Words: 17,047 - Updated: 12h - Published: 8/13/2023 - Grimlock
The Thief and the Prime by AtomicFox64
The Cooper Gang encounters a strange crystal Bentley speculates is otherworldly. Things start to get worse when Carmelita is kidnapped and Sly will do anything to save her, but help comes in the most unexpected way. Soon, the trio find themself in the middle of of a huge war of two factions. The Gang form bonds with the Good faction and Sly starts to relate with their wise leader.
Crossover - Sly Cooper & Transformers/Beast Wars - Rated: M - English - Adventure/Romance - Chapters: 40 - Words: 45,989 - Favs: 5 - Follows: 7 - Updated: 12h - Published: 5/4
Bioformers by Dragon Emperor0 reviews
Bionicle crossover. In his last moments, Primus created a legacy that would come to be his greatest heir. Enter Tiberius Darwin AKA Creator, the first Bioformer. But when he loses his memory after crash landing and turning into a human baby, what will happen when his power is revealed and is discovered by the Decepticons? Will it spell disaster? Only time will tell.
Crossover - Transformers/Beast Wars & Bionicle - Rated: M - English - Sci-Fi/Romance - Chapters: 36 - Words: 171,868 - Reviews: 73 - Favs: 121 - Follows: 116 - Updated: 17h - Published: 10/6/2020 - [OC, Miko N.] [Optimus Prime, Elita One]
Adventures of the Decepticons' Pet Ghost by playedcrowd5610 reviews
Danny has decided to call this Decepticon warship his new haunt, now he is having the time of his afterlife messing with these guys. Especially when they try so hard to get rid of him. Why leave now? He doesn't even have to pay rent. (Part 3 of 4: Haunting the Nemesis)
Crossover - Transformers/Beast Wars & Danny Phantom - Rated: K+ - English - Humor/Family - Chapters: 2 - Words: 3,628 - Reviews: 5 - Favs: 17 - Follows: 14 - Updated: 18h - Published: 9/21 - Soundwave, Starscream, Knock Out, Danny F.
Transformers: Beasts and Heroes by Autistic-Grizzly reviews
During the summer training camp the heroes meet with the forces of the Heroic Maximals who crash one on this world after escaping their own during a greater war. Now the Heroes and Beast must work together so that way their worlds can be saved! [REBOOT OF MY HEROIC BEAST WARS!]
Crossover - Transformers/Beast Wars & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 23 - Words: 73,102 - Reviews: 80 - Favs: 79 - Follows: 70 - Updated: 9/27 - Published: 4/28 - Optimus Primal, Izuku M., 1-A Students, 1-B Students
Turtles and Transformers Book 1 by Bloodrayne666 reviews
The Hamato Clan come across the Autobots lead by Optimus Prime who have been forced to flee their dying planet Cybertron to Harvest Energon as well as battle the Decepticons lead by the ruthless and deadly Megatron. But it's not just the Decepticons they have to deal with, as there are other dangers and challenges to face and where will this lead them? Non-canon-ish! CHAPTER 99 UP!
Crossover - Transformers/Beast Wars & Ninja Turtles - Rated: M - English - Adventure/Sci-Fi - Chapters: 99 - Words: 226,725 - Reviews: 213 - Favs: 16 - Follows: 14 - Updated: 9/26 - Published: 3/2 - Optimus Prime, Starscream, Leonardo, Raphael
Pit Stop by playedcrowd5610 reviews
Danny has just escaped the GiW and they are right on his tail, he decides to take refuge in a car in an abandoned parking lot. Little does he know, the car he is currently bleeding out in is a giant twenty-four-foot-tall mech from outer space who is now very concerned for Danny's health. Or Smokescreen just wanted to go for a late-night drive, he didn't expect to adopt a human.
Crossover - Transformers/Beast Wars & Danny Phantom - Rated: T - English - Family/Hurt/Comfort - Chapters: 2 - Words: 3,534 - Reviews: 6 - Favs: 62 - Follows: 72 - Updated: 9/25 - Published: 7/20 - Smokescreen, Danny F.
Transforming Partners by leefseeker reviews
Running from a crowd of furious villagers was one thing, falling into a hole and finding a large metal cube is another, but having two small robotic creatures is a whole different thing in general
Crossover - Transformers/Beast Wars & Naruto - Rated: T - English - Adventure - Chapters: 1 - Words: 3,696 - Reviews: 2 - Favs: 12 - Follows: 16 - Published: 9/24 - Bumblebee, Soundwave, Naruto U.
Transformers: Another Earth by Daisyle125 reviews
When the Decepticon's Time-Space machine failed, a handful of Autobots and Decepticons were transported to an alternate universe where creatures they never seen before possessed powers that roam the planet. Two young trainers will come across the Autobots and help them find a way to get them back home.
Crossover - Transformers/Beast Wars & Pokémon - Rated: T - English - Adventure/Friendship - Chapters: 15 - Words: 51,909 - Reviews: 6 - Favs: 33 - Follows: 27 - Updated: 9/24 - Published: 1/30/2023 - Bumblebee, Jazz, Optimus Prime, OC
More than Meets the Eye by Flippy the Mummified Hedgehog reviews
The Autobots and the Decepticons have been fighting for many years, centuries even, and now they have brought their war to a new world called earth, searching for the ultimate power that may end it all. The only thing that stands in their way is Izuku Midoriya, a young girl, one of the few who knew of them, and knew of their coming arrival. And now fate has them meet
Crossover - Transformers/Beast Wars & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 34,971 - Reviews: 8 - Favs: 30 - Follows: 33 - Updated: 9/23 - Published: 8/13 - [Optimus Prime, Megatron] [Izuku M., Predaking]
Transformers Amalgamation: The Search For the Allspark by Tomhur18 reviews
PHASE 1. After thousands of years, the Allspark's location has been found. A small planet known as Earth. The Autobots and Decepticons have both sent teams to find and recover the sacred relic. But is there more to this planet than meets the eye? Especially with the three runaway human children the Autobots have befriended?
Crossover - Transformers/Beast Wars & Percy Jackson and the Olympians - Rated: T - English - Adventure/Friendship - Chapters: 27 - Words: 64,550 - Reviews: 9 - Favs: 29 - Follows: 34 - Updated: 9/22 - Published: 5/25 - Hot Rod, Prowl, Annabeth C., Thalia G.
Infinity Crisis: Legacy of the Robots in Disguise by Movie-Brat reviews
One shot. The War Monger Megatron and his Decepticons invade Elmore during the events of The Job but soon face off against their enemies, the heroic Autobots as lead by Optimus Prime. The fate of Elmore depends on the Autobots defeating the evil Decepticons or will Elmore be doomed to be destroyed? In honor of the 40th anniversary of The Transformers.
Crossover - Transformers/Beast Wars & Amazing World of Gumball - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 1 - Words: 10,314 - Reviews: 3 - Favs: 3 - Follows: 1 - Published: 9/21 - Optimus Prime - Complete
Transformers MHA, Arc 2: Earthrise by The Omni-Remnant reviews
After a rather intense adventure and the U.A. Sports Festival approaching fast, Izuku and his friends have two important things to do; improve their Quirks in time for the festival… and hide a bunch of giant alien robots. That proves to be easier said than done, especially when enemies on Earth and from beyond the stars end up coming for them…
Crossover - Transformers/Beast Wars & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Adventure - Chapters: 78 - Words: 940,699 - Reviews: 2355 - Favs: 1,047 - Follows: 1,030 - Updated: 9/20 - Published: 12/1/2021 - Bumblebee, Optimus Prime, Izuku M., Kyoka Jiro
Transformers AllSpark Force: The Pilot Movie by DragonEmperor999 reviews
When The Evil Galvatron & Sentinal Prime along with Unicron want to devour Earth it's Up to some kids and Their Cybertronian Friends To Stop Them. Can they do it and find a AllSpark Fragment? And Stop Emperor Starscream's Advisor as well?
Crossover - Transformers/Beast Wars & X-overs - Rated: K+ - English - Adventure/Humor - Chapters: 8 - Words: 20,630 - Reviews: 72 - Favs: 6 - Follows: 6 - Updated: 9/19 - Published: 7/27
The Alcatraz by Kamen Rider Goji
What happened to all those notable Deathtrons arrested in Dr. Exposition's ZKD trilogy? Here's you answer.
Crossover - X-overs & Transformers/Beast Wars - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,188 - Favs: 1 - Published: 9/17 - Complete
Grimlock versus Fang by Kamen Rider Goji
Long ago, there was a war between the peaceful Sabretrons and the warmongering Deathtrons that started on their original home world, Planet Orion, before it was finally settled on Earth. But there were stasis pods that went missing on Earth during the last war. 15 of them were already tracked down so far, but a give or take estimated 200 pods are still missing. One of 200 opens up.
Crossover - Transformers/Beast Wars & Kamen Rider - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 563 - Favs: 1 - Follows: 1 - Published: 9/17
Infinity Crisis Addendum: New Members by Movie-Brat reviews
One shot. The Council of Megatrons have decided to expand their high ranking roster. And one in particular has proven promising to the council and all Decepticons.
Crossover - Transformers/Beast Wars & Miraculous: Tales of Ladybug & Cat Noir - Rated: K - English - Sci-Fi/Suspense - Chapters: 1 - Words: 1,008 - Reviews: 3 - Favs: 4 - Follows: 2 - Published: 9/17 - Megatron, Nooroo - Complete
The Great Convergence by MergingEmperor7 reviews
Cybertron has fallen after millions of years of civil war between the Autobots and Decepticons. Autobots have fled to new worlds, and made new allies. But the Decepticons were not far behind and they too made new friends. Three worlds, two alliances, only one will stand, while the other will fall.
Crossover - Transformers/Beast Wars & Ratchet and Clank - Rated: T - English - Sci-Fi/Friendship - Chapters: 17 - Words: 22,069 - Reviews: 18 - Favs: 22 - Follows: 25 - Updated: 9/17 - Published: 6/17/2022 - Bumblebee, Ratchet, Silverbolt, Clank
Burning Rubber by playedcrowd5610 reviews
Starscream's little human pet has been a pain in Knockout's aft ever since he stepped foot on the Nemesis, but now the kid may finally have a use for him. His plan only goes awry when the Autobots catch on and try and free the human he very rightfully kidnapped. Aka Danny gets to go on a field trip with the Decepticon medic to a street race. (Part 2 of 4: "Haunting The Nemesis")
Crossover - Transformers/Beast Wars & Danny Phantom - Rated: T - English - Humor/Family - Chapters: 1 - Words: 8,881 - Reviews: 2 - Favs: 23 - Follows: 18 - Published: 9/16 - Bumblebee, Knock Out, Jack D., Danny F. - Complete
Transform Effect: Rise a Prime by RECKLESS SOLDIER-MS reviews
Two galaxies isolated from one another meet for the first time, just as the war between two opposing factions escalates. But the galaxy has more than first contact with a race of machines to worry about, ideals will be tested as an ancient evil returns to begin a cycle of genocide. A leader from the ranks of the Autobots must rise to stop both the Decepticons and the Reapers.
Crossover - Transformers/Beast Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 33 - Words: 219,742 - Reviews: 264 - Favs: 403 - Follows: 397 - Updated: 9/16 - Published: 2/3/2014 - Optimus Prime, Megatron, Shepard
Owl House Prime by Rodimus973 reviews
Before the events of Thanks To Them, Luz Noceda and her friends from the Boiling Isles are caught in the middle of a galactic war between the Autobots and Decepticons on Earth. They must help Optimus Prime and his team defend the planet against Megatron, Starscream and many other dangerous foes that threaten the safety of humankind.
Crossover - Transformers/Beast Wars & Owl House - Rated: T - English - Fantasy/Sci-Fi - Chapters: 70 - Words: 451,596 - Reviews: 872 - Favs: 484 - Follows: 472 - Updated: 9/15 - Published: 12/22/2022 - Arcee, Optimus Prime, Luz N., Amity B.
Transformers Prime: Crosswire Dimensions by LionHeart2023 reviews
After the war ended, Jack, Miko & Raf discover an ancient Transformer relic. Too bad survivors of MECH are involve. Crazier when a relic powerful enough to bring objects & creatures from another dimension into existence got activated, what'd you get? Dangerous Machines, Magical Beast, Characters from Shows/Games, even LITTLE PONIES? And still so much more threatens the balance...
Crossover - X-overs & Transformers/Beast Wars - Rated: T - English - Suspense/Supernatural - Chapters: 13 - Words: 185,720 - Reviews: 38 - Favs: 41 - Follows: 40 - Updated: 9/15 - Published: 8/25/2023
School Life by mushroomfry reviews
A collection of colourful stories starring Furaha the lioness cub and her friends Orko (2002 He Man), Optimus Prime (Armada) and Baby Marvin (Baby Looney Tunes) as they navigate the world around them.
Crossover - Transformers/Beast Wars & He-Man - Rated: K - English - Family/Friendship - Chapters: 1 - Words: 770 - Reviews: 2 - Favs: 1 - Follows: 1 - Published: 9/13 - Optimus Prime, Orko
Stars Colliding by PrimrosePrime
After everything that happened, the Universal Protectors think that things are calm in the Universe. But they feel like something is happening. And the Universe gives them a message so when they head to Earth, they land right in the crossfire of another War that's happening between two factions.
Crossover - Transformers/Beast Wars & Misc - Rated: K+ - English - Fantasy/Sci-Fi - Chapters: 2 - Words: 3,221 - Published: 9/12 - Optimus Prime, Megatron, Arcee, OC
2.5K | Page 1 2 3 4 11 .. Last Next »