Helluva Boss Crossovers
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Into the Medranoverse by Varkhan
Don't hesitate. Hesitate, and you're dead. Don't think. Do it. You have your instincts, use them. Follow this advice wisely. This world, consisting of 3 stories, conceived by an ambitious idealist...must learn these lessons...desperately. From having to conquer fear and bring unity, to finding allies in high and low places, dancing the grey lines of morality...this...is madness...
Crossover - Hazbin Hotel & Helluva Boss - Rated: T - English - Supernatural/Suspense - Chapters: 9 - Words: 54,745 - Favs: 4 - Follows: 4 - Updated: 10/22 - Published: 7/12 - Charlie, Loona, Octavia, Stolas
Helluva Boss: Symbiotic Assassin by VilScreen reviews
After encountering a strange black sludge in the living realm, Blitzo found out that it was hella good at making his job easier but will it really last? Read and find out!
Crossover - Helluva Boss & Spider-Man - Rated: M - English - Adventure/Supernatural - Chapters: 2 - Words: 6,462 - Reviews: 2 - Favs: 7 - Follows: 5 - Updated: 10/22 - Published: 10/13 - Blitzo, Eddie B./Venom/Toxin II
Helluva Adventure by T3nk3n115 reviews
After an incident caused by her mother, Octavia gets sucked into the Pokémon with Loona. Now they must journey with Ash Ketchum to find a way home. Will they succeed? Or will they be trapped in the Pokémon world forever?
Crossover - Pokémon & Helluva Boss - Rated: T - English - Adventure/Romance - Chapters: 1 - Words: 10,194 - Reviews: 5 - Favs: 24 - Follows: 25 - Published: 10/21 - [Ash K./Satoshi, Octavia, Loona, Keenie]
Helluva Spawn by LifeLongPencil
A cursed warrior fighting for his own peace, a common demon capitalizing on his thrill to take life. These paths will collide, but will they merge into one road, or cross into a new war of the afterlife?
Crossover - Spawn & Helluva Boss - Rated: M - English - Adventure/Supernatural - Chapters: 1 - Words: 3,876 - Favs: 4 - Follows: 3 - Published: 10/21 - Blitzo, Loona, Millie, Moxxie
Sonic X Helluva Boss by parzival2.0 reviews
A new crossover List of Episodes between canon and non-canon(Sonic the Hedgehog(Game/Comic/Series) x Helluva Boss/Hazbin Hotel)
Crossover - Sonic the Hedgehog & Helluva Boss - Rated: T - English - Adventure/Sci-Fi - Chapters: 8 - Words: 2,583 - Reviews: 1 - Favs: 6 - Follows: 5 - Updated: 10/20 - Published: 10/12 - Sonic, Dr. Robotnik/Dr. Eggman, Blitzo, Loona
Helluva Impact: Thus the IMPs landed in Teyvat by Antonio Ferrari reviews
When the Sustainer of Heavenly Principles has an anger fit after our belived IMP friends had an accident with her, she decides to exile them to the world of Teyvat. If her plan was destroying humanity on that planet...I'm pretty sure she succeeded.
Crossover - Genshin Impact & Helluva Boss - Rated: M - English - Humor/Parody - Chapters: 16 - Words: 51,557 - Reviews: 15 - Favs: 21 - Follows: 24 - Updated: 10/19 - Published: 10/16/2021 - Blitzo, Loona, Millie, Moxxie
AHTH Side Stories: Get Out Alive by WriteAnon reviews
A series of stories set in my Achieving Heaven Through Hell Series. For the kids of Lady Belladonna's Institute for the Enrichment and Education of Dispossessed Hellborn Children, everyday life is a struggle for survival. However, a mysterious new hire at the institute will not only dramatically change life for the children, but perhaps all of Hell itself.
Crossover - JoJo's Bizarre Adventure & Helluva Boss - Rated: T - English - Supernatural/Drama - Chapters: 24 - Words: 186,869 - Reviews: 31 - Favs: 37 - Follows: 45 - Updated: 10/18 - Published: 10/7/2022 - Diavolo, OC
Dragon Me To A Hell Hound (TRADUCIDO) by misery680
Link del fic: /story/532406/dragon-me-to-a-hell-hound Luego de que Loona y Blitz se pelearan, ella queria alejarse para desahogarse, creando por accidente un portal hacia un castillo con un dragon morado en un mundo de ponis, mientra esta en su cuidado, Loona bebe una extraña pocion pesando que era alcohol, provocando una situación para Spike.
Crossover - My Little Pony & Helluva Boss - Rated: M - Spanish - Humor/Romance - Chapters: 1 - Words: 13,535 - Favs: 1 - Published: 10/16
Lean On Me by JamesFames reviews
When they first met, it was killer and target. Now, Stolas has given himself the most impossible mission: change Liquid Snake for the better. Will he succeed and give this rebellious Snake a new outlook? Or will Liquid fall further onto the path of self-destruction?
Crossover - Metal Gear & Helluva Boss - Rated: M - English - Hurt/Comfort/Friendship - Chapters: 4 - Words: 7,379 - Reviews: 2 - Favs: 4 - Follows: 3 - Updated: 10/13 - Published: 11/8/2022 - Liquid S., Octavia, Stolas, OC
Luckyhyna studios Hellforest the last forest by luckyhyna
Based on Furngully. Frizzaroli is a imp sprite growing up in hells forest to become the new guardian however when he accidently shrinks a female owlet and her father the two owls and impling must work together after Alastor the demon of destruction is accidently freed by the company Stolas and Octavia was overseeing and save Hells forest and all of hell and heven.
Crossover - Hazbin Hotel & Helluva Boss - Rated: K+ - English - Supernatural/Adventure - Chapters: 1 - Words: 1,437 - Published: 10/13 - Octavia, Stolas, Fizzarolli
Hellhound Hotel by Bluefox32
Meet V, Loona's half angel half hellhound daughter. Growing tired of her species being ridiculed as dangerous monsters, V teams up with Charlotte Morningstar, daughter of Charlie Morningstar, to start their own rescue facility.
Crossover - Hazbin Hotel & Helluva Boss - Rated: K+ - English - Supernatural/Friendship - Chapters: 34 - Words: 14,034 - Favs: 6 - Follows: 5 - Updated: 10/11 - Published: 9/27 - Charlie, OC, Loona, OC - Complete
A loud mayday relationship by 1049 reviews
This is a follow up to the one shots I did for valentines day and st Patrick's Day so here's the story that I promised you guys. What happens when a young local boy like Lincoln starts seeing a pop star named Verosika Mayday do you get a simple love life or something more paranormal well see what happens this story.
Crossover - Loud House & Helluva Boss - Rated: M - English - Romance - Chapters: 3 - Words: 2,538 - Reviews: 14 - Favs: 43 - Follows: 41 - Updated: 10/8 - Published: 4/27
Helluva boss Xenoverse Bio transformation by parzival2.0
New forms of transformations similar to Saiyans and only Supreme Kai of Time know about evolution
Crossover - Dragon Ball Z & Helluva Boss - Rated: M - English - Sci-Fi/Spiritual - Chapters: 4 - Words: 3,986 - Updated: 10/8 - Published: 10/4
Welcome to the Apocalypse, Iruma-Kun by Shadow Joestar reviews
It was a perfect day for Iruma Suzuki who has been force to do lots and lots of work, it was the day that he decided to confess his love to one kind and strong-hearted rick girl named Selnia Iori Frameheart, hoping to become her boyfriend. But everything in the world fell apart when Hell broke loose. They must survive this new Hell together. Iruma/Harem. Other Crossover stuff more.
Crossover - Welcome to Demon School! Iruma-kun/魔入りました!入間くん & Helluva Boss - Rated: M - English - Romance/Horror - Chapters: 7 - Words: 18,688 - Reviews: 35 - Favs: 149 - Follows: 155 - Updated: 10/7 - Published: 10/8/2022 - [Iruma S., Ameri A., Millie, Verosika Mayday]
Helluva What if, Si Rita gana, español by eltioRob95 reviews
Basado de Rob meets Helluva Loud fanfic y Helluva Loud Luck, que hubiera pasado si la psicótica Rita hubiera logrado retroceder en el tiempo con la hoz del tiempo al día antes de la mala suerte.
Crossover - Loud House & Helluva Boss - Rated: T - Spanish - Supernatural/Hurt/Comfort - Chapters: 3 - Words: 10,415 - Reviews: 2 - Favs: 1 - Follows: 1 - Published: 10/6 - Complete
Helluva What if, if Rita wins by eltioRob95 reviews
Based in "Rob meets Helluva Loud" what if Rita get his horrible plans in reality when she back in time?, all that in october 4, but first , A message to my readers, cover of Jamaelynn. (will change from T to M)
Crossover - Loud House & Helluva Boss - Rated: M - English - Hurt/Comfort/Supernatural - Chapters: 3 - Words: 10,620 - Reviews: 12 - Favs: 4 - Follows: 4 - Updated: 10/6 - Published: 10/1 - Lincoln L., Rita L., Loona - Complete
Stolaslin by luckyhyna
Based on Coraline. Stolas moved into the pink palace with his adopted moms and is struggling with the move until he finds a mysterious door where everthing is better...yet there is something strange underneeth the surface that Stolas needs to gather his courage to survive
Crossover - Hazbin Hotel & Helluva Boss - Rated: K+ - English - Supernatural - Chapters: 2 - Words: 3,804 - Updated: 10/5 - Published: 10/2 - Charlie, Vaggie, Stolas, Blitzo
One Helluva Loud House by Geo Soul reviews
After an unexpected Night Lincoln ends up with one Helluva new Pet which sets off a chain reaction of insanity, fun and all sorts of weirdness. (Lemon heavy story Hazbin Hotel elements will be added in later)
Crossover - Loud House & Helluva Boss - Rated: M - English - Chapters: 10 - Words: 39,761 - Reviews: 170 - Favs: 246 - Follows: 256 - Updated: 10/5 - Published: 4/23/2022
Scooby Doo and the Helluva Dong by Kenlestations reviews
Blitzo and the I.M.P gang murdered Fred Jones' father. Naturally, Scooby-Doo and friends ain't gonna let that slide and now they want a piece of gay demon asses!
Crossover - Scooby Doo & Helluva Boss - Rated: M - English - Romance/Fantasy - Chapters: 1 - Words: 2,161 - Reviews: 1 - Published: 10/4 - Shaggy, Scooby Doo, Blitzo, Loona
Martha's Devilish Hell (Requested Story) by FallenEmperor2000 reviews
After dying and being sent to Hell as a Hellhound Demon, Katsuki Bakugou eventually joins I.M.P (The Immediate Murder Professionals) to make a living. After a bet is made with Loona during an argument, Katsuki has to find a way to lose his viriginity. Thankfully, a mission assigned by a former school teacher will lead him to a woman in no position to refuse doing the job... LEMON
Crossover - My Hero Academia/僕のヒーローアカデミア & Helluva Boss - Rated: M - English - Romance/Crime - Chapters: 1 - Words: 4,004 - Reviews: 1 - Favs: 5 - Follows: 2 - Published: 10/2 - [Katsuki B., Martha] - Complete
LC Presents: Helluva Dad by JP-Ryder reviews
As a spin-off of "Luz Clawthorne", in this AU where Loona was adopted much earlier by Blitz, as this story follows the struggles between a father and daughter.
Crossover - Disney & Helluva Boss - Rated: T - English - Family/Drama - Chapters: 3 - Words: 45,304 - Reviews: 34 - Favs: 18 - Follows: 21 - Updated: 10/1 - Published: 6/17 - Blitzo, Loona, Moxxie, OC
A Helluva Grim Tale by Jss2141 reviews
While IMP was going about their normal business, a new employee has come into their lives and proves to be a rather interesting addition to the group. I do not own these characters or franchises. Story also available on my Wattpad of the same name, Jss2141.
Crossover - Grim Tales & Helluva Boss - Rated: M - English - Supernatural/Fantasy - Chapters: 15 - Words: 70,297 - Reviews: 81 - Favs: 137 - Follows: 129 - Updated: 10/1 - Published: 2/4/2021 - Junior/Grim Jr., Blitzo, Loona, Moxxie
Butt Call? Booty Dial? by ghostly-scripts reviews
"How can a hell denizen botch a summoning this bad?" you ask. Well, Blitzo is stupid, easy as that. Part five of the "Seven Ways to Summon the Ghost King" saga.
Crossover - Danny Phantom & Helluva Boss - Rated: M - English - Humor/Supernatural - Chapters: 1 - Words: 1,404 - Reviews: 2 - Favs: 9 - Follows: 6 - Published: 9/29 - Complete
Hellhound & Witch Boy by Anime0CC0Manga reviews
A certain doggie loses her memory and gets found by a certain Chaos Lord (I Own Nothing)
Crossover - Helluva Boss & Young Justice - Rated: K - English - Family/Friendship - Chapters: 2 - Words: 2,057 - Reviews: 2 - Favs: 13 - Follows: 11 - Updated: 9/27 - Published: 7/2 - Loona, Klarion the Witch Boy
Pathuva an Overlord by Foxsky Harem Emperor 2015 reviews
Summary is in said.
Crossover - Naruto & Helluva Boss - Rated: M - English - Supernatural - Chapters: 3 - Words: 22,917 - Reviews: 25 - Favs: 150 - Follows: 169 - Updated: 9/25 - Published: 9/8 - [Naruto U., Hinata H., Verosika Mayday, Octavia]
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