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Flash Duel by Mega Ghost reviews
When the particle accelerator exploded, lonely Yu-Gi-Oh player Jack Harper is suddenly in possession of a real Millennium Item. But when he discovers he has the power to summon flesh and blood duel monsters with their own minds and personalities, he decides he's in for more fun than he's ever had in his life. That is, until Yami Bakura appears, as real and alive as anyone else.
Crossover - Flash & Yu-Gi-Oh - Rated: T - English - Adventure/Friendship - Chapters: 11 - Words: 169,601 - Reviews: 18 - Favs: 76 - Follows: 80 - Updated: 12/19/2021 - Published: 5/4/2020 - [OC, Dark Magician Girl/Black Magician Girl]
She's My Super Friend by flashxreversed reviews
As Kara attends Alex & Kelly's wedding, a certain scarlet speedster shows up fashionably late and the two share a heartfelt encounter about life, mistakes, and the future.
Crossover - Flash & Supergirl - Rated: K+ - English - Romance - Chapters: 1 - Words: 1,404 - Reviews: 2 - Favs: 16 - Follows: 10 - Published: 12/18/2021 - [Barry A./The Flash, Kara D./Supergirl] - Complete
Godspeed by DemonicDragonGodSlayer reviews
Nate and Barry are brothers that lost their mom when they were kids. Years later they both get strike by lightning and when they awaken from their comas they are the fastest men alive. this is their story, enjoy. Under rewrite.
Crossover - Flash & Naruto - Rated: M - English - Romance/Sci-Fi - Chapters: 8 - Words: 26,933 - Reviews: 24 - Favs: 229 - Follows: 275 - Updated: 12/18/2021 - Published: 4/3/2021 - [Naruto U., Dr. Caitlin S., Iris W.] Barry A./The Flash
THE FLASH: DEPTHS OF MULTIVERSE by Randrog
In this new universe, Barry jeopardizes the timeline and finds himself in a dire situation. This time he has help from the MAN OF STEEL himself. Warning: contains spoilers for ZSJL (ZACK SNYDER'S JUSTICE LEAGUE) and the biggest event ARMAGEDDON from the first five episodes of FLASH. Contains abusive language and sexual content. SNOWBARRY pairing.
Crossover - Flash & Superman & Lois - Rated: M - English - Romance/Suspense - Chapters: 1 - Words: 1,771 - Favs: 2 - Follows: 2 - Published: 12/18/2021 - [Barry A./The Flash, Dr. Caitlin S.] Savitar, Kal-El/Clark Kent/Superman
The Alien by chuyproiler26
Crossover entre la serie The Flash y Ben 10
Crossover - Ben 10 & Flash - Rated: M - Spanish - Sci-Fi - Chapters: 1 - Words: 4,789 - Favs: 2 - Follows: 4 - Published: 12/17/2021
Death Comes Knocking by megamatt09 reviews
AU of Season 8 Episode 5 of Flash. Thawne won't escape his fate. Not this time. One shot. Crossover.
Crossover - Harry Potter & Flash - Rated: T - English - Supernatural - Chapters: 1 - Words: 827 - Reviews: 10 - Favs: 62 - Follows: 41 - Published: 12/15/2021 - Harry P., Barry A./The Flash, Dr. Caitlin S., Eobard T./Impostor Harrison W./Reverse-Flash - Complete
Justice League Warcraft: The Beginning by Flash XS guy reviews
Azeroth exists on Earth Prime, where the Stormwind Kingdom and the rest of the world are at peace with each other. Suddenly, Earth Prime faces a fearsome race of invaders: Orc warriors fleeing from their dying world to colonize another. As the breach portal opens connecting the two worlds, one side will face destruction, and the other side will face extinction.
Crossover - Flash & Warcraft - Rated: T - English - Adventure - Chapters: 10 - Words: 24,301 - Reviews: 20 - Favs: 5 - Follows: 3 - Updated: 12/15/2021 - Published: 11/28/2021 - Barry A./The Flash, Oliver Q./The Arrow, Durotan, Orgrim Doomhammer
The Flash: Armageddon by jason429 reviews
An alien threat comes to earth that pushes Barry Allen and Team Flash to their limit as a threat of Armageddon is so great The Flash cannot do this alone. Not only that but Nick Fury along with S.W.O.R.D are also on the scene to combat this threat with a team lead by the one and only Spider-Man! It's all hands on deck for this epic crossover event! Fates collide but Heroes assemble
Crossover - Flash & Avengers - Rated: T - English - Sci-Fi - Chapters: 26 - Words: 39,802 - Reviews: 58 - Favs: 16 - Follows: 11 - Updated: 12/15/2021 - Published: 11/17/2021 - Barry A./The Flash, Kate Bishop/Hawkeye, Yelena B., Spider-Man/Peter Parker - Complete
Healing With Shared Pain by antisocialmike reviews
Based after series finale of Arrow & if Thea said no to Roy's proposal. My own take on some things. Can two of the most damaged people anybody could know, help each other heal & find peace within themselves as well as with the world?
Crossover - Flash & Arrow - Rated: M - English - Romance/Hurt/Comfort - Chapters: 10 - Words: 40,292 - Reviews: 8 - Favs: 23 - Follows: 21 - Updated: 12/12/2021 - Published: 9/26/2021 - [Barry A./The Flash, Thea Q.] Dr. Caitlin S., John D./Spartan
Karry Universe by CharmedMilliE- Karry Master reviews
In an alternate universe both Barry and Kara exist together. This is what happens when they meet in college and fall in love. Follow them, their family, and friends through life from college years to being superheroes and beyond. This is Karry Universe. Leading the Millma Verse.
Crossover - Flash & Supergirl - Rated: T - English - Romance - Chapters: 179 - Words: 989,405 - Reviews: 3227 - Favs: 1,498 - Follows: 1,305 - Updated: 12/12/2021 - Published: 3/4/2016 - [Barry A./The Flash, Kara D./Supergirl]
out of time by superflash11
what if Barry did stop the tidal wave? what would happen to the story?
Crossover - Flash & Supergirl - Rated: T - English - Sci-Fi/Romance - Chapters: 1 - Words: 480 - Favs: 7 - Follows: 5 - Published: 12/12/2021 - [Barry A./The Flash, Kara D./Supergirl] Dr. Caitlin S.
Captain Jake loses the mighty Battle by Laquan2022 reviews
this is a continuation of season 3 of Captain Jake and the Neverland pirates The Never Sea Conquest With a twist! that's right and the twist is that the Flash is in it, also his friends. Like Cisco Ramon Caitlin snow Iris West, and Joe West.
Crossover - Jake and the Never Land Pirates & Flash - Rated: K - English - Adventure - Chapters: 9 - Words: 3,304 - Reviews: 9 - Updated: 12/11/2021 - Published: 6/11/2019 - Barry A./The Flash, Iris W., Jake, Izzy - Complete
New Player in the Game by 1Whitedragon reviews
Kagome got a call that her cousin had finally woken up is able to run as fast as lightning. But he wasn't the only one since she was affected as well. Follow Kagome in a new adventure where she deals metahumans and a cold villain that has his eyes on her. And he's not the only one too.
Crossover - Inuyasha & Flash - Rated: M - English - Supernatural/Adventure - Chapters: 18 - Words: 36,666 - Reviews: 68 - Favs: 178 - Follows: 195 - Updated: 12/10/2021 - Published: 5/21/2016 - [Kagome H., Leonard S./Captain Cold] Barry A./The Flash
She's Scared by Aliciateigan24 reviews
What would happen if Team Flash reached out to a certain Girl of Steel to help defeat Savitar? But when she arrives and things are revealed, will the relationships and friendships remain? - COMPLETE (Will not be getting an update!)
Crossover - Supergirl & Flash - Rated: K+ - English - Romance/Mystery - Chapters: 6 - Words: 6,021 - Reviews: 3 - Favs: 2 - Follows: 1 - Published: 12/9/2021 - Barry A./The Flash, Savitar, Kara D./Supergirl - Complete
Reverse Flashpoint: Season 1 by Mr. Realistic reviews
This story is an attempt to novelize The CW Flash television show with the addition of some marvel characters. The goal is to rework, reinterpret, reimage, re-establish, expanded, and fact-check what the show has provided while staying somewhat faithful to the source material.
Crossover - Flash & Marvel - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 56,996 - Reviews: 1 - Favs: 8 - Follows: 7 - Updated: 12/8/2021 - Published: 6/27/2021 - P. Parker/Spider-Man, Barry A./The Flash, Dr. Caitlin S., Eobard T./Impostor Harrison W./Reverse-Flash
To Hell and Back by Nyame reviews
The AU where Oliver, Barry, and Kara survive Lian Yu together for years, raising a baby Kal-El, and are eventually rescued – by the League of Assassins. (Note: This version is unedited. For main, edited version, go to AO3)
Crossover - Flash & Arrow - Rated: T - English - Adventure/Friendship - Chapters: 130 - Words: 405,492 - Reviews: 407 - Favs: 706 - Follows: 631 - Updated: 12/7/2021 - Published: 12/17/2017 - [Barry A./The Flash, Iris W.] [Oliver Q./Arrow/Green Arrow, Black Canary/Earth-1 D. Laurel Lance]
Crimson Beginnings by antisocialmike reviews
A Fic Based On The Arrow 4x08 & The Flash 2x08 Crossover Event 'Legends of Yesterday' With Callbacks To 2x08 Of The Arrow as Well.
Crossover - Flash & Arrow - Rated: T - English - Romance/Drama - Chapters: 1 - Words: 7,112 - Reviews: 2 - Favs: 11 - Follows: 12 - Published: 12/1/2021 - [Barry A./The Flash, Thea Q.] Oliver Q./Arrow/Green Arrow, Felicity S./Overwatch
The Flash: Bolt the Thunderbolt by Flash XS guy reviews
What if Bolt was never adopted by Penny? Instead, he was adopted by Barry Allen as a kid. At the night of Particle Accelerator explosion, both Barry and Bolt were struck by lightning and became speedsters. Throughout the years, Barry and Bolt fought against many enemies. Together, The Flash and Bolt with Team Flash protects the city.
Crossover - Flash & Bolt - Rated: K+ - English - Friendship/Adventure - Chapters: 2 - Words: 1,130 - Reviews: 1 - Favs: 5 - Follows: 4 - Published: 11/28/2021 - Barry A./The Flash, Cisco R., Bolt, Mittens
the Speedster and Kryptonian turn evil by Superflash123 reviews
this story happen after Crisis on Earth X. this is a story of Barry and Kara turn evil. in this story Cisco still blames barry for his brother's death.
Crossover - Flash & Supergirl - Rated: K - English - Sci-Fi/Adventure - Chapters: 1 - Words: 750 - Reviews: 1 - Favs: 4 - Follows: 2 - Published: 11/27/2021 - Iris W., Kara D./Supergirl, Barry A./The Flash - Complete
Baxter's reality check to Iris by Phillipe363 reviews
After discovering they have powers Kyle, Mandy and Eve are in Central City with Team Flash when listening to an argument between Iris and Barry Allen. Having finally had enough of this mess and getting no real help Mandy decides to rip into Iris with Kyle joining in.
Crossover - Flash & Last Man Standing - Rated: T - English - Drama/Family - Chapters: 1 - Words: 988 - Reviews: 1 - Favs: 4 - Follows: 3 - Published: 11/24/2021 - Barry A./The Flash, Iris W., Oliver Q./The Arrow, J. Diggle - Complete
Worlds Apart by Maroon Smoke reviews
A twist of fate sends our very own Barry Allen hurtling into Earth 38- where he wants to stay for the long haul. After making fast friends with Clark Kent, he's given one mission: protect Kara Danvers as she takes her mantle as Supergirl.
Crossover - Flash & Supergirl - Rated: T - English - Romance/Adventure - Chapters: 10 - Words: 83,659 - Reviews: 205 - Favs: 477 - Follows: 526 - Updated: 11/23/2021 - Published: 8/28/2018 - [Barry A./The Flash, Kara D./Supergirl]
Kakashi, Asuma and Kurenai on Central City 2024 by Superflash123 reviews
Kakashi, Kurenai and Asuma is sent to the future. will they be able to go back home?
Crossover - Naruto & Flash - Rated: K - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 4,688 - Reviews: 3 - Favs: 1 - Follows: 2 - Published: 11/23/2021 - Naruto U., Sasuke U., Sakura H., Barry A./The Flash
the real future newspaper by superflash11 reviews
right after Iris blamed Barry for Eddie kidnapping and Eddie was found by the team and he didn't believe that he should married Iris.
Crossover - Flash & Supergirl - Rated: K - English - Romance/Drama - Chapters: 1 - Words: 168 - Reviews: 2 - Favs: 7 - Follows: 3 - Published: 11/14/2021 - [Barry A./The Flash, Kara D./Supergirl] - Complete
Battle of the Worlds by DJLStorme reviews
Barry Allen had just returned from earth 38 and is now waiting for the long awaited battle against the speedster villain Zoom. As they wait there is a sudden breach in the S.T.A.R Labs. which suddenly drops two teenagers on their earth from different earth. And after that there are different breaches all over the Globe. Over this, one of said teenager is a Super-Hero on other Earth
Crossover - Flash & Avengers - Rated: T - English - Adventure/Friendship - Chapters: 18 - Words: 69,185 - Reviews: 13 - Favs: 85 - Follows: 84 - Updated: 11/11/2021 - Published: 2/2/2020 - Barry A./The Flash, Oliver Q./The Arrow, Iron Man/Tony S., Spider-Man/Peter Parker
The Flash reunites with Jake and his crew by Laquan2022 reviews
Jake, Izzy, and Cubby return to Central City to reunite with Barry Allen, Iris west, Cisco ramon, Caitlin snow, and Joe. But this time Jake and Izzy's future daughter Carol accidentally arrives to Central city. And secretly she's working with Captain Hook in the future. But the group doesn't know that yet. But they will though soon enough.
Crossover - Flash & Jake and the Never Land Pirates - Rated: K - English - Adventure - Chapters: 2 - Words: 2,284 - Reviews: 3 - Published: 11/5/2021
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