1 - 20 of 234 Works in Leonardo Has a Bad Time (TMNT)
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Distant Shore by terrapinz
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024), Teenage Mutant Ninja Turtles - All Media Types
08 Sep 2025
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Summary
Leo is reunited with a family he never knew he had. It’s a lot to deal with.
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Survivor’s Guilt by JupiterJimsBootyyyShaker
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Sep 2025
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Summary
One missed shot is all it took to nearly kill Leonardo.
Canon divergent fic if during the Rise of the Teenage Mutant Ninja Turtles movie, Leo didn’t come out of the portal safely. His family struggles with the aftermath of the devastating accident.
Raph-centric. -
Just a tool (On-going) by Anonymous_2012
Fandoms: Teenage Mutant Ninja Turtles (TV 2012)
07 Sep 2025
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Summary
After the return of Splinter's biological daughter Karai Leo's whole life suddenly shifted. He watches as his title, respect,praise,role, and most importantly, family are handed to karai.What he worked endlessly for since the day he could walk is handed to his big sister for no effort at all. As leo is no longer splinter's favourite all fatherly affection that splinter gave him is stripped and he finds an excuse to take away Leo's role as leader and tries to give it to karai, who refuses it because she wants take over the foot clan. Splinter gives the leader role to raph without second thought, basically throwing leo away like trash.
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2012 / ROTTMNT / TOTTMNT One-Shots by SmidvargAndTheGang80082
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024)
06 Sep 2025
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Summary
!!OPEN REQUESTS!!
Mostly human rat mutant, affectionately named Yuji by Splinter, joins the turtles in varied journeys to discover the secrets behind his odd mutation.
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Where You Belong by Shattered_ontheInside
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
05 Sep 2025
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Summary
How does it feel to be so very alone and so very forgotten?
Why do you enjoy tormenting me?
I will answer your question if you first answer mine.
Leave me alone.
Answer the question, Leo.
No. Leave me alone. Allow me a shred of peace for once.
Answer. The. Question.
I don’t want to.
You don’t have a choice.
I never have a choice.
Answer me.
I won’t lose control of my own mind!
Leee-ooo. Answer the quessss-tion.
Why?
Answer. Me.
I don’t want to.
How does it make you feel, Leonardo?
. . .
Despair.
Is that your answer?
. . .
Yes.
Good.
-or-
After being hit with a mystic attack that removes Leo's ability to communicate one unexpected turn after another takes his life on a downward spiral that rips him away from his family; seems to have no end; time and time again puts him face-to-face with the reality that where he is told he belongs is not where he wants to be...
and that makes him struggle with the answers to two important questions:
Can a hero be turned into a monster?
And does a murderer deserve forgiveness?
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Summary
It was him. He was a child. A kid again.
.
.
.
.
.
.
OR Leonadro wakes up in his child body and now has to save the world again
{MY ALTERNATIVE UNIVERSE}Series
- Part 1 of SPIDER LILY VERSE
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Arc One: The Battle by NinjaNekosLibrary
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
04 Sep 2025
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Summary
“It’s a nickname. Short for Donatello.”
“Heh.” He quirks a smile. “Kinda a coinkydink ‘cause-”
“Hamato Donatello.” Leo’s head shoots up and the turtle looks back. “My brothers are Leonardo, Raphael, and Michelangelo. They have nicknames too. Mikey, Raph…” He tilts his head, urging, “Leo.”
Leo stares, looking for any sign of deception. The turtle keeps talking, almost as if he’s trying to get the words out before his brain can catch up. “We’re a team. We fight crime and save people. I have a father. We call him Splinter. He’s a rat. Used to be a human. Adopted me and my brothers, taught us ninjitsu.”
Leo’s paralyzed. He waits for the snickers, or for the punchline.
The turtle does not shirk away, eyes bright with the maniac look that Donnie gets when he proves a theory correct and is dying for a single person to acknowledge that he’s the smartest being on planet earth.
“So. Leo.” It’s conversational, calm, eager. “What’s your family like?”
(Or, A crossover where 2012Donnie is sent by Za-Naron into the Prison Dimension and joins RiseLeo during his stay. ✨ And they bond. ✨)
Series
- Part 1 of Mismatched Twins
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Two Years, Two Keys by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
02 Sep 2025
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Summary
Two years after the near Krang invasion and the eve of their 19th birthday, Donnie notices that Leo is not himself, becoming quieter and more distant. With some gentle coaxing, Leo finally breaks down, confessing that he has felt trapped and tired, the trauma from his near-sacrifice and the invasion not leaving him even after two years. Donnie decides to do something about and surprises Leo with an apartment that the two of them can share together
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A series of stories of Leo and Donnie sharing an apartment in the Hidden City together, full of laughs, tears, and healing that can only be shared between two twins
Series
- Part 31 of I love the disaster twins
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Until I See You Again by Shattered_ontheInside
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
01 Sep 2025
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Summary
In an alternate universe where Baron Draxum gave up his villainous ways long ago, the turtles are slow to take him up on his offer to train them until their delay costs them dearly when one of their own is captured and blinded by the Foot Clan while on a routine pizza run.
Accepting his new offer at proper training, the four turtles defy their mutated rat dad's objections and begin intensive work under the Baron to prepare for the return of a powerful being that is prophesied in yokai scrolls to bring with him world-wide destruction.
Realizing the Foot clan are reassembling the parts of the kori yori to reawaken the Shredder, Splinter is forced to admit the yokai who previously captured and experimented on him is right and they must work together to train his sons so they are ready in time.
But can the creator of the four mutant turtles use his mutagen to recover the sight of their wounded brother before the Shredder rears his ugly head, so he can aid in the fight?
And what will happen if he isn't able to do so in time?
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Gravid by Peeby11
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
01 Sep 2025
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Summary
Gravid
Adj.
Pregnant; carrying eggs or young.Or: trans Leo angst!
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Wanderer by Beaniesintheclouds
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
28 Aug 2025
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Summary
“There’s a gentle touch on his shoulder, and despite how much it shocks him he doesn’t react. He… he can’t feel his body anymore, his brain stuck between states of being. He can’t hear the muffled noise from the world, but he can vaguely see Raph in the center of his vision, speaking.”
—————
Leo struggles with keeping himself tethered to reality. Sometimes his family is there to keep him present, sometimes they are not. Here are a few snippets of awareness he has.
Series
- Part 19 of Beanie's Bonanza of ROTTMNT One-Shots
- Part 14 of Leo-Centric fics
- Part 9 of Distant Days
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Insomnia? Never Heard Of It. by Krynn928
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
24 Aug 2025
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Summary
Leo has insomnia, and he’s had it for as long as he can remember. After the events of the Kraang Invasion, it’s gotten a lot worse than he’d like to admit and he doesn’t want to bother his family with his problems. Eventually his insomnia gets too difficult to deal with and he struggles to figure out what to do about it, but his family ends up doing that for him, although he’s not happy with how his family chooses to help him with it.
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And Ye Shall Bear The Sin by Dead_Tongue
Fandoms: Teenage Mutant Ninja Turtles (TV 2012)
24 Aug 2025
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Summary
Maybe she shouldn't have cut him so ruthlessly. Maybe she should have tried another artery. Surely another artery would have done him in. Would it be slower? Agonizing? Would he suffer? Of course. It was a clean cut nonetheless. And the sound of his head hitting the pavement will always echo in Leonardo's mind. A deafening thud of metal merged with bone and living tissue meeting brick. Heavy with madness and death.
She should have expected the blood splatter. The blood which has been replaced with a modified mutagen that kept this bastard going. The blood that spilled onto her skin when she freed the monster of his head. It stung, like a seat belt when it touches your skin after having sat in the sun. It wasn't too painful but it was enough to have her swipe most of it away.
Like a trophy, Shredder's head was presented to her younger brothers. A victory. An eye for an eye. A good ending. A new beginning. At least, that's what Leonardo had hoped for.
Now she was hearing, feeling, smelling, breathing in Oroku Saki. Like the man was under her skin. And no meditation was healing her. Oroku Saki died, but he didn't leave. He just found a new host.
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Fear of the Worst by FinleyThePenguin
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003)
23 Aug 2025
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Summary
The Shredder attacks Leonardo and his family when they least expect it. Things go horribly wrong from there.
- Language:
- English
- Words:
- 5,075
- Chapters:
- 1/1
- Kudos:
- 23
- Hits:
- 182
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And I’ll Wait a Little Longer. by Conartist170
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
19 Aug 2025
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Summary
Draxum’s lab had many oddities. Scrolls, spells, hexes trapped in crystal glass bottles. He was a man of the mystic arts. Of alchemy. Of weaponry. Of the discovery of the things no one had wanted to touch with a ten foot pole.
The yokai had many, many questionably legal and potentially unsafe things left out in the open in his lab.
And unfortunately, Leo and Donnie, happen to stumble upon one of those potentially unsafe things. And unfortunately…there may not be a way back.
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Leo and Donnie accidentally trip into mystic shenanigans and end up fusing into one entity. The catch is, this new person believes they have always been this way. That they have always been one person.
And, at the end of the day, they may not want to turn back.
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The Shadow Assassin by NerdyBoiYeet
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
18 Aug 2025
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Summary
Separated Leo Comic. Leo was raised by Big Mama and Draxum to be a ruthless and effective assassin.
When his 'family' enters his life, things begin to change.
Will it be for better or for worse?
Series
- Part 1 of Nerdy's Art and Comics!! :)
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Devil's mission by TooFanaticDreamer
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
10 Aug 2025
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Summary
He's not just ordinary. And he knows it. He's always felt different from everyone else. Everyone knew he was and treated him as such. But what if it's even more complicated than that?
He shouldn't have been here in the first place. But he feels like he could make a difference. He has a right to. But the others don't see it that way and wish him dead.
It's too late, because with his newfound past, no one will accept him and he's forced to leave his current home.
..Where will he go now?
.
♦️♦️♦️
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After a mutation in Draxum's lab, an unexpected guest joins the battle for the turtles. This causes problems and Lou Jitsu is unable to grab all the turtles. He escapes with only three and the fourth is grabbed by someone else. (Queen of the Nether world) A small turtle with red markings finds a home in the Underworld with the royal family.
But unexpected things happen in the little devil's life.(Maybe I'll make a better summary)
PS: Tags will be updated with chapters to avoid spoilers -
Stranger From Another World by ZimPop
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Aug 2025
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Summary
When random portals start opening all around New York, Casey and his new family have their hands full dealing with the fallout. However one of the portals doesn't drop a monster from some unknown hellscape, but an almost familiar face that's nothing like the one Casey knows. Intrigued by this stranger Casey can't help but want to be close to him and learn as much as he can, and yes, he's sure these new weird feelings in his stomach and the constant heat in his face has nothing to do with it.
Now ‘Registered users only’ due to AI scrapping. Sorry.
Series
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The Bishop's Opening by I_Logophile
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Aug 2025
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Summary
A single figure extracted itself from the darkness and stepped into the light.
“How kind of you to join us,” said a man in a black suit, someone Donnie only recognized from videos: Agent Bishop, head of the Earth Protection Force.
“You took our brother,” Donnie replied. “You didn’t think we were just gonna let that slide, did you?"
Though less common than the Knight’s Opening, the Bishop’s Opening is a solid first move that gives you an array of options if you’re a sharp player with a fondness for tricky games. With this opening, the player uses their first move to put their bishop in control of the center of the board.
Likewise, Agent Bishop and the Earth Protection Force have placed themselves front and center on New York City's stage, but when you keep making mistakes, the spotlight isn't always a good thing.
And kidnapping Hamato Leonardo was one massive mistake.
Series
- Part 2 of Game of Shards
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A Deal with Death by JustaLittleBitCrazy
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
06 Aug 2025
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Summary
"You're. not. my brother."
Death laughed condescendingly, glanced up unbothered at the deadly weapons pointed at him - or rather at Leo's body - that were sticking out of Donnie's tech shell, and slowly paced the room, cooly asking: "But I am in his body. What would you do? Use your weapons against your own sibling - your twin as you call each other? Injure him?"
He snapped his head up to glare at Donnie with a set of cold, callous eyes, slyly adding with the corners of Leo's mouth curled up in amusement:
"Kill. him?"
Donnie gritted his teeth in anger with that vein in his forehead pulsating, realizing whoever he was talking with was right; but nonetheless he kept the weapons out pointed at this intruder inhabiting his twin's body, demanding:
"Where's Leo? I swear if you hurt him..."
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Moments before his demise in the prison dimension, Leo is approached by the one called Death and offered a deal - an extra five years of life in exchange for something Death wants.
But will Leo come to realize the price is too costly when the time comes to fulfull his end of the deal?
Only time will tell...