1 - 20 of 220 Works in Leonardo Has a Bad Time (TMNT)
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And I’ll Wait a Little Longer. by Conartist170
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
17 Jun 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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ROTTMNT oneshots! :D by LikableMuffin
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 Jun 2025
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Summary
All my ROTTMNT oneshots! There's lots of different stuff in here, hopefully theres something for everyone! :D
Lots of these are also requested stories! Feel free to request me if you want! (Just no T-cest or adult content, please.)(Transferred here from Quotev)
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Survivor’s Guilt by JupiterJimsBootyyyShaker
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
14 Jun 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 For You by JustaLittleBitCrazy
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
13 Jun 2025
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Summary
Time ticks by.
Minutes turn into days, weeks bleed into months.
Seasons come and go like the ebbing and flowing tide, bringing with them change as the years pass by.
Wounds heal, scars fade, along with memories.
Some disappear and some stay with a person for life, changing them like the shifting seasons, bringing out the best in some...
but the worst in others.
~~~
Non-con is implied, this au deals mostly with the aftermath.
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Where You Belong Arch 1: Can Nobody Hear Me? by Shattered_ontheInside
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
12 Jun 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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Family, Care, and Risks [REVISITED & REVISED] by MizuMelody
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
09 Jun 2025
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Summary
Family, Care, and Risks [REVISITED & REVISED] - I am the original creator of this work. Believe me. Or don't, who am I to sway you?
I'm revisiting and revising this work after a large break from AO3. This is my new account. There will be a better explaination in chapter one.
Summary:
After the Kraang invasion, Leonardo cannot handle his own mind. His family tries to help, but he believes that they just want to ridicule him for his mistakes. After a runaway and finding the wrong people at the wrong time, will Leo learn that it's okay to feel this way?
- Language:
- English
- Words:
- 2,696
- Chapters:
- 2/31
- Hits:
- 32
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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)
07 Jun 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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The moods surrounding blue by Averie_sol
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
02 Jun 2025
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Summary
leo has these... mood swings? is that what you'd call it? coping mechanisms dont work, he lashes out. He manipulates to get what he wants he needs- no craves control. He loves his brothers with everything in him but theres so much comfort in feeling out of your mind.
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OR leo thinks hes some horrible manipulative fuck up in this fan fic of i take some of my personal experiences, wildly let it take a turn, spin it so leo mayhaps has BPD, totally has PTSD, depression anxiety, etcetera etcetera (because theres totally a universe where hes borderline) and let the angst begin because he has seventy thousand different mental issues ;)
THERE IS TRIGGERING CONTENT. PLEASE READ AT YOUR OWN RISK <3
Series
- Part 1 of Rise Leonardo-centric
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Summary
He was the oldest but for a while now, he felt like a baby that needed constant babysitting and having his hand held all the time. He hated that feeling of helplessness it was causing in him.
He wasn't helpless, he wasn't weak, he didn't need protection. He got hurt but he recovered and just wanted to feel normal. Be the big brother and the leader again.
Series
- Part 3 of Fall of a Hero
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Hey, Pretty Boy by AchiiillesHeel
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
27 May 2025
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Summary
Leo gets approached by a tall yokai lady who offers him a modeling gig. His brothers don't think it's a good idea but Leo being Leo does it anyway! Everything seems fine and dandy. He gets to be the center of attention, makes bank, and has a ton of fun modeling. So when things go sour leading to him being sold on the yokai equivalent of a black market, he starts thinking that it may not have been a good idea.
A doodle I did out of boredom turned into this story. No, I am not okay
Chapters written: 66
Chapters posted: (65/?) -
Runaway bad guy, this is your retribution by Leo_Angst
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles - All Media Types
21 May 2025
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Summary
He thought he could handle it. Thought he could push through his problems with a smile in place.
But he can't. He's not strong enough for it.
He's defiantly not strong enough to keep seeing the look of hurt on his family's faces. A look he, himself put there with just his mare existence. He should leave, it'll be easier for everyone involved.
He's easily replaceable anyway.
Or
Leo runs away when his problems get too much for him.
Story about recovery and trying to see the light when you're at rock bottom
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Teenage mutant ninja mental health crisis by Img0ingt0eatyo0u
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
16 May 2025
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Summary
A load of one shots and drabbles of the turtles (and maybe other characters) having a very bad time, will include rottmnt, 2012 and maybe mm or 1987.
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What's mine is yours (Until we find a more permanent solution-) by LeoIsA_Fruitbowl
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
15 May 2025
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Summary
Leo has a bad dysphoria day.
Er- he has a bad dysphoria week.
...Month?He has a bad time, but that's okay! Because Donnie is a genius. And also much more emotionally understanding than canon, don't come at me-
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The Shadow Assassin by NerdyBoiYeet
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
14 May 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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I Should Have Eaten You In The Womb by Crowdog
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
08 May 2025
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Summary
By eight thirty the lair was running on generator power and Donnie’s ears were ringing so loud he couldn’t even hear the baritone of the motor thrumming out in the open sewers. Note vibrating on the handle because no twin had returned home to rip it off with a roll of his brown eyes before depositing the original propane tank nearby. Donnie couldn’t hear Mikey’s voice as he asked about Leo, he couldn’t feel Raph’s hand as they brought him into the lair to warm up his frozen fingers.
Someone else moved Donnie’s mouth and made his vocal cords vibrate into the open air of their home. Someone else stood in the doorway of their father’s room begging their dad to get out of bed because Leo was missing. Someone else felt the world caving in because all the things that were supposed to be unimaginable were happening right now.
As if panic could knock back a respiratory infection Raph and Mikey hooked the TV up with Donnie’s numb help. The weather report was worse than they last knew. That blizzard that was originally projected to hit tomorrow by one in the afternoon would be here at their doorstep much earlier.
Series
- Part 1 of maybe you weren't a terrible person
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That I'd Be (Anywhere The You Are, That You Are) by assorted_fandom_things
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
05 May 2025
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Summary
Donnie is nine when he first meets one of his soulmates after a childhood of loneliness. Selene is ten when she meets one of her soulmates after a childhood filled with dreaming of them. Neither of them expected the other, but there's no way in hell they're letting go now that they have each other. Five years and a noninsignificant amount of crime later, they meet a band of color-coded idiots who can't seem to understand that idea.
(Leonardo is nine when he first learns that there were supposed to be four turtles instead of three. He is fourteen when he meets his other brother for the first time. The grief somehow feels worse now that he knows he's alive.)
Alternativly: two autistic soulmates fuck shit up and act cute together while Leonardo tries and fails to get his long lost twin to come home.
Series
- Part 1 of The Sun, the Moon, and the Earth
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broken love song by stillateenageabomination
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
04 May 2025
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Summary
“I don’t know how old I am,” he said, the thought coming to him as he voiced it. That happened to him a lot. He wasn’t great at keeping what was in his mind from spilling out through his lips. Or at resisting the bone-deep instincts to bare his neck, dive to his knees, trade out reality for falsehoods if only it meant five more minutes without the end of the world.
Raph blinked. “Seventeen. You’re seventeen.” He messed with the remote, but he didn’t change the channel. Just picked at the battery casing, popping it in and out, in and out. “Our birthday passed while you were – you know. With him.” He finally pressed down on one of the buttons and turned down the volume. “Do you know how long that was?”
Forever. Ten thousand years. A lifetime and an eon and the same exact stretch of time that it’d taken to shape the mountains from dust, erode stone until it became smooth.
“It was about four months,” Raph said, and Leo felt something crack.
or, getting Leo back was the easy part. Leo is still wholly convinced that his love for the Shredder supersedes all logic. After he's spent months at the Shredder's mercy, the hard part is convincing him not to go running back to the man he calls master.
Series
- Part 3 of never see a doctor
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Summary
Donatello left the lair to get a part he needed for a machine he had been working on. But he woke up strapped to a metal table. His brothers were unaware that he had left the lair meaning he would not be saved soon. If he is going to be saved.
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Devil's mission by TooFanaticDreamer
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
21 Apr 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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♦️♦️♦️
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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 can make a better summary)
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Weightless on the Rooftop (Will I Fly?) by lil_lavender3
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
18 Apr 2025
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Summary
He didn’t feel…anything.
Not the persistent dread, not the crushing weight of his own failures and guilt. Not even the constant fatigue from having to wake up every morning.
Maybe he would have felt happy, if he could.
Or,
Leo get’s cursed and is…happy about it? Will he try to undo it, or will it be the death of him?