Collab with Knightmare Lord, BNHA-Ben 10-Urusei Yatsura crossover. When a strange watch lands beside him and his best friend Shinobu, Izuku's dreams of heroism may become a reality, provided he keeps said watch a secret and can deal with a horde of upcoming alien vistors, not all of whom are friendly or come in peace! Rating may change, read and review?

While working under Max Tennyson, Jason comes in contact with an alien device that grants it's user the power to transform into aliens, The Omnitrix. He begins fighting crime and anyone after the power he now has. Slowly becoming the greatest hero in the universe. (Harem) [Dc/Young Justice, Ben 10, Transformers, and maybe more crossover]

Marceline 'Marcy' Grayson is a Viltrumite/Human Hybrid who was born from Nolan and Debbie Grayson and grew up to be a kind and innocent girl who wants to do some good in the world and then comes across the Omnitrix, a mysterious alien watch with the power to allow her to transform into a multitude of aliens. Watch out, world, because when lives are on the line, It's Hero Time!

When the worlds of Percy Jackson and Ben 10 collide, crazy stuff is bound to happen. Join Percy, Annabeth, Ben and Gwen on an incredible journey which might just question everything they've known till now.

Here we will see the heroes return with a whole new adventure, and old foes will tried to take over the multiverse

This is as the title says a crossover between the two shows, with Eon as the main treat and his villain team. Eon plots to obtain the anti-life equation in order to be able to defeat Alien X, however, Eon will prove to be a formidable enemy to the Light/Apokolips. Eon will end up being an arch nemesis to Vandal Savage. Ben will get to meet the League/Outsider eventually.

When A Chocolate Bunny Meets A Hero With More Than 10 Aliens (I Own Nothing)

Everyone knows Izuku Midoriya when he got his Quirk One For All from All Might to become the greatest hero. In this one, he returns that special Quirk and he is now the wield of the Omnitrix. Rate T later M

Sup, this is Cal. I'm your average Joe except that I died and didn't know till this guy call ROB told me. I can choose a new life to live in any universe. I figured, if I'm going to enjoy this, I better be a pretty powerful dude. But not too powerful, well maybe have a few perks. Look out world, a saiyan is here to be a true badass. (Based on a Ben 10 cyoa, more than 1 crossover)

Izuku Midoriya is about to give up on his dreams of heroism when a teenager clad in a green jacket and a man claiming to be a professor break into his room in broad daylight. Ben Tennyson and Professor Paradox have travelled to the My Hero universe in order to find a worthy successor to wield the Omnitrix once Ben passes... and they firmly believe Izuku is worthy to inherit it.

we all know that we have one life to spend in this world, and death is the end of that life, but there are some who want to defy death and life push back the shadows, Zack will join S.E.E.S and delve into the Darkest Hour to repel agents the shadows and find their own truth together.

Same story but a new and improved dialogue.

Having returned from a massive adventure in the world of Remnant, Ben, Team RWBY, and the rest of their friends find themselves faced with new challenges at every turn on Earth. Be it villains old and new… or even things that they never imagined to be real. It's going to be a challenge unlike any they've seen before, but they're up for it. It's Hero Time! (Cover Art credit inside)

Gwen Stacy is chosen to become the successor of Ben Tennyson. Read and enjoy her origin as the heroine, G-Morph, and her ever-growing adventure with her arachnoid boyfriend. Mainly based on The Amazing Spider-Man movies and the MCU but has some original ideas. Peter and Gwen pairing. Inspired by The Incredible Muffin. Originally titled "Wristed Heroes"

All his life, Jaune wanted to become a huntsman so he could protect others. However, everything comes crashing down when Ozpin learns about his forged transcripts and expels him from the school. Jaune thought that was it, and he could no longer chase his dream. Yet, that all changes when he stumbles upon the Omnitrix. Maybe there was hope for him still to chase his dream.

There will always be a hero in any world, but what happens when the most powerful alien device ends in the hands of another ten-year-old boy who was also a wielder fo a powerful Longinus? Let's see.

Ben Tennyson was abducted by aliens when he was 10 years old after accidentally received the Omnitrix, but then got rescued by Tetrax. He also brought Rook Blonko with his side. Both Ben and Rook are orphans, where Tetrax trained them to become the Galactic Guardians. Then after reaching his teen years, he received the Ultimatrix and recruiting more members.

Magor and Bel plan to take the Easter Bunny's power, so the Archangel, Michael, asks for Ben's help in saving Easter.

Yukiko doesn't wish for a lot, but what she does doesn't seem like much to others. All she wants is to celebrate her joint birthday with Ben and Gwen, and to have the Tennysons enjoy their first time in Inaba. Unfortunately, Yukiko is unaware that the holidays are known for opening up old awkward family wounds. Oh, and rouge alien attacks too.

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.

some say, when you look into the fog, you'll see what you wish to see with ignorance, but if you look pass the fog and into the clearing, you'll be able to move and grow. join Koan as he joins the Detective group within Inaba and solve it's mysterious case of the Midnight Channel and it's murders.

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.

It was a peaceful day in Bellwood and Ben is bored out of his mind, until a mysterious man arrives and sends him to another universe. Landing in the desert sands of Hueco Mundo, Ben meets the mysterious yet charismatic Aizen, who requests his help in a war in exchange for helping Ben get home. What's a hero to do?

In the Gwen 10 Timeline, Gwen's cousin, Ben, was on a routine mission for the Plumbers. Deliver the recently confiscated Ultimatrix that Albedo recreated, along with the Nemetrix, to Azmuth for safe storage. But upon arriving on Galvan Prime, Ben was sucked into a dimensional time portal that sent him to a realm where humanity has learned to bend the elements. Guess it's hero time!

this is what i think would happen if some of the strongest members of Fairy tail would be thrown into the events of ultimate alien and omniverse. main pairings will be BenXMirajane, KevinXLisanna, and GwenXNatsu rated m for later chapters.