1 - 20 of 84 Bookmarks by Gris121
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Silent Night by GriffinStone
Fandom Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
06 Apr 2024
Summary
An AU where Leo spent two years in the Prison Realm before being rescued.
Also where I expand on theories about Casey adjusting to living in the past.
6/3/2024 AN: Got sucked back into Star Wars for a bit, but I will return!
- Words:
- 80,020
- Works:
- 23
- Bookmarks:
- 135
Bookmarked by Gris121
27 Feb 2026
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Frozen Soup by Anonymous
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Frozen (Disney Movies)
22 Sep 2024
Tags
Summary
"I have something I wanna show you.” Donnie exclaimed. Donnie grabbed Leo’s hand and pulled him out of the room and into the hallway. Donnie had to shush Leo a few times, but they made it into Donnie's lab with no one discovering them.
“Do the magic!” Leo said immediately after the door clicked shut behind them. He was almost jumping up and down in excitement.
“Just wait, Leo.” Donnie grabbed his purple goggles, and then gave Leo his blue ones. Donnie then led Leo to a table where a small purple robot laid.
“Nardo, meet Shelldon.”
////
Frozen X ROTTMNT anyone?
- Language:
- English
- Words:
- 17,168
- Chapters:
- 10/10
- Collections:
- 1
- Comments:
- 30
- Kudos:
- 65
- Bookmarks:
- 19
- Hits:
- 1,927
Bookmarked by Gris121
27 Feb 2026
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StarBlind by WeirdNCrazy
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Samurai Rabbit: The Usagi Chronicles (Cartoon)
12 Apr 2024
Tags
Summary
There was a lot of mutagen and other sharp objects being dangerously launched around as Baron Draxum lair got destroyed.
What would happen if some of that got into a certain Red Eared Slider eyes?
Well it would make for one blind turtle and an interesting shift from canon that what it would be!
- Language:
- English
- Words:
- 355,890
- Chapters:
- 52/52
- Comments:
- 1,231
- Kudos:
- 3,229
- Bookmarks:
- 423
- Hits:
- 113,230
Bookmarked by Gris121
27 Feb 2026
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The Fourth Mark by pandaluna
Fandom Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
13 Feb 2025
- Words:
- 11,766
- Works:
- 2
- Bookmarks:
- 15
Bookmarked by Gris121
23 Feb 2026
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How did we get here? by a7flash
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
14 Feb 2025
Tags
Summary
It's one thing to get a concussion, but it's another to wake up in a world that's not your own.
Now trapped in another dimension, Usagi has to rely on four mutant turtles to help him get him back home.
Unfortunately for Usagi, a certain charming blue-masked turtle is going to make it very hard to leave.
Bookmarked by Gris121
23 Feb 2026
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The Same Little Faces by awkwardusagi
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
25 Feb 2024
Tags
Summary
A mishap with a witch in the Hidden City leaves Leo de-aged at three years old until the spell can be broken. Donnie, Mikey, and Raph must care for their brother until they can turn the slider back to normal. This is nothing the Mad Dogs can't handle, they know their brother better than anyone. Besides, how much trouble can it be to take care of one turtle-tot?
- Language:
- English
- Words:
- 78,555
- Chapters:
- 9/9
- Comments:
- 734
- Kudos:
- 3,477
- Bookmarks:
- 691
- Hits:
- 97,781
Bookmarked by Gris121
23 Feb 2026
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Hold On and Don't Let Go by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
17 Feb 2025
Tags
Summary
After experiencing the worst thing to ever happened to your family, you think that the worst is over. You think that after recovery, things would get easier. Sometimes though, life throws you a curveball, and that is nothing that you can do to change or fix it
-or-
Leo ends up with cancer after the invasion and it becomes clear that the Hamato family might end up losing Leo all over again
Series
- Part 9 of I love the disaster twins
Bookmarked by Gris121
21 Feb 2026
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Caffeine Crime Buddy by GAMERBLADE
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
04 Mar 2025
Tags
Summary
"Clarify."
"Coffee. Energy drink. Together. One unholy concoction. The ultimate boost."
"You... you're a madman."
"I'm a visionary."
Or....
How do you keep caffeine away from 2 mutant turtles
(the answer is you can't)
Series
- Part 12 of ROTTMNT Oneshots
Bookmarked by Gris121
21 Feb 2026
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Broken Bonds by Shattered_ontheInside
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
13 Mar 2025
Tags
Summary
None of them spoke - neither the four in the room nor the figure staring at them, who audibly groaned at the sight of who, exactly, came to pay him a visit.
~▪️🔹~🔹▪️~
Shortly after the krang invasion a portal accident almost killed one of their own, leading to accusations and lots of fingers pointed Leo's way.
But he hadn't lost control of his portals once since before they defeated the Shredder. Why wouldn't anyone believe him!?
That's all in the past now. Or so he thought.
LeoOnii comes home to his mountain cabin one blustery winter night to find his three brothers and sister who he hadn't laid eyes on in six long years there waiting for him.What will happen next is anyone's guess.
- Language:
- English
- Words:
- 61,659
- Chapters:
- 10/10
- Collections:
- 1
- Comments:
- 244
- Kudos:
- 231
- Bookmarks:
- 54
- Hits:
- 4,648
Bookmarked by Gris121
21 Feb 2026
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It's Unfair (You get what you deserve) by Jinxy_Minxy
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
23 Mar 2025
Tags
Summary
Leonardo has always tried to be the perfect omega, but his life takes a turn for the worse when his father arranges a marriage between him and the alpha leader of the foot clan, Oroku Saiki. He must choose between following his father's orders or following his heart. All while trying to mend the estranged relationship between him and his brothers.
Heavily influenced by "When I Last Deserved It..." by gato_negro13
Bookmarked by Gris121
20 Feb 2026
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odd man out by cosmoscrow
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
09 Sep 2023
Tags
Summary
Leonardo is dead.
Or, at least, he should be. Instead, he is floating within a colorful vortex that reminds him too much of his own portals. He tries not to think too much about it. But, eventually he is forced to when the vortex spits him out into a world that used to be his home, many, many years ago.
Or; the one where Future!Leo somehow managed to luck out on a one in a million mere millisecond chance of a freak glitch in the space-time continuum that sends him back into the present, where the Invasion has been successfully driven back. And it looks like it was a one-way ticket travel.
Obviously, everybody is So Very Normal about this.
- Language:
- English
- Words:
- 66,495
- Chapters:
- 11/?
- Collections:
- 4
- Comments:
- 998
- Kudos:
- 8,321
- Bookmarks:
- 1,878
- Hits:
- 241,427
Bookmarked by Gris121
19 Feb 2026
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Precise as Vengeance by kaestar
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 May 2025
Tags
Summary
Leo didn’t like being the rational one. He was the face-man, the jokester, the instigator. Donnie was supposed to be the genius. The cold, aloof scientist who hated touch and emotion. It was obvious who’d be the logical one on paper.
But Leo had always been smarter than he let on. Observant. Strategic. He noticed things before anyone else did. Including when his twin was coming unglued.
Donnie liked experimenting, being theatrical and dramatic, and he was a middle child. Leo was too, but Donnie was, like, a different font of it.
So between the observer Leonardo and the mad scientist Donatello, it wasn’t even a question of who.
And Leo didn’t necessarily mind, or even truly fear anything, because he knew where Donnie’s morals stood. Donnie was mostly just a dramatic theater kid, he’d never kill anyone. Leo just couldn’t be too careful.
So, when Leo saw it, that true, unbridled rage, seething in Donnie’s blood red and frost blue sharp eyes. The eyes that mirrored his own so clearly…
He felt it.
or: Heart Of Evil (TMNT 2012) but make it disaster twins
Bookmarked by Gris121
18 Feb 2026
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Two Halves of a Shell by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
02 Jun 2025
Tags
Summary
After the invasion, Leo carries scars deeper than any wound the Kraang left behind. Donnie, his twin in everything but personality, notices what no one else does—the quiet unraveling. In the silence between machines and missions, he reaches out. Because if one twin falls, the other does too.
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A story that focuses on Leo and Donnie’s twinship after the Kraang invasion, and how they heal together
Series
- Part 14 of I love the disaster twins
Bookmarked by Gris121
17 Feb 2026
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Where Loyalties Lie by Shattered_ontheInside
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
24 Jan 2025
Tags
Summary
Separated as freshly mutated baby turtles, Leo (aka X, aka Experiment Alpha 002-2) is raised by the great and powerful Baron Draxum, to be the warrior he was designed to be.
A few years later, when Splinter's three sons are turtle tots, their father reveals to them that a fourth brother perished in a fire; and Donnie tells his dad that he dreamed about this fourth turtle.
Fast forward to the present, the three turtles are bumbling teenage ninjas who get in the way of the powerful Draxum. His ninja assassin is ordered to deal with the medddlers, and during combat the caped, masked ninja is surprised to discover the mutant turtle from his childhood dreams is not only real, but also his very own brother.
X wants to draw close to his brothers, but the slider's only father-figure wants them dead, after they refuse to join him and subsequently destroy his lab.
Thrown in the middle of two worlds, will X carry out the will of his master, or will the lives of his family be precious in his eyes?
Also, as time progresses Leo must find the answer to some hard-hitting questions, such as: Who can he trust? Who is steeping him in a cesspool of lies and deception? And...
Where will his loyalties lie?
Series
- Part 1 of Loyalties
- Language:
- English
- Words:
- 325,295
- Chapters:
- 69/69
- Comments:
- 450
- Kudos:
- 444
- Bookmarks:
- 71
- Hits:
- 16,162
Bookmarked by Gris121
17 Feb 2026
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I Never Let Them See the Worst of Me by WrittenKinzy18
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Jun 2025
Tags
Summary
Finally, finally, they spotted two blurs of color in the dull tunnels. Both were bundles of blue and green, but one had a splash of purple on his head. There was no longer a pair of voices. Instead, all they could hear were frantic chirps, churrs, and whines. They silently inched forward, straining their senses to get a better feel of the situation.
As they got closer, they noticed with guilty dread that the littler one was not moving.
Alternatively:
During winter, when the twins were just young turtle tots, Blue and Purple got lost in the sewers. One doesn't make it... but they both end up finding their way back home.This changes everything and nothing at the same time.
Series
- Part 1 of Amber Eyes
Bookmarked by Gris121
17 Feb 2026
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Feel The Need to Hide Universe by Chilaglia
Fandom Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
04 Oct 2025
- Words:
- 6,015
- Works:
- 4
- Bookmarks:
- 7
Bookmarked by Gris121
17 Feb 2026
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Feral Mercy by Chilaglia
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Jun 2025
Tags
Summary
While exploring the Hidden City, the Turtles are ambushed by a group of witches with a grudge against Donnie. Separated from Raph, the trio is caught off guard and lightly injured in the scuffle. But the sight of his brothers bleeding—even if it’s just a scratch—is enough to send Leo into a monstrous rage.
Series
- Part 26 of chilaglia ROTTMNT bthb 2025
- Part 2 of Feel The Need to Hide Universe
Bookmarked by Gris121
17 Feb 2026
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Bookmarked by Gris121
17 Feb 2026
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You Came Back To Me by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
15 Jun 2025
Tags
Summary
When Leo is injured on patrol, Donnie snaps—and the villain responsible sees exactly what happens when you try to take a twin away from his other half.
Series
- Part 16 of I love the disaster twins
Bookmarked by Gris121
17 Feb 2026
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Tangled Webs by TrueLlama717
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Tangled (2010)
17 Jun 2025
Tags
Summary
“Oh, and Leonardo?” she calls once he reaches the door, voice light and dainty once again.
He stops, fidgeting with his hands and turning back towards her, then replies as steadily as he can, “Yes, Mother?”
She’s facing the window now, her profile grave and stark in the low light. Something bright and golden catches his eye, and he glances at a few locks of his own hair caught on her claws, drifting limply on the slight breeze from the window.
“Never,” Big Mama growls, the sound guttural and beastly and everything she is deep inside, “ask to leave”—she turns her head to face him, her eyes glowing from the slight darkness, blinking one by one—“again.”
Or, a Tangled AU featuring blonde Leo, Mother Gothel Big Mama, and plenty of angst and shenanigans.
Bookmarked by Gris121
17 Feb 2026