1 - 20 of 24 Bookmarks by CoffeeDemon
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Abaddon makes a tiny mistake on one of his time resets. One that snowballs into the Undervale being better off than it ever was before, and Katherine and her children coming far sooner than they’re supposed to.
Abaddon panics. This isn’t going to script!
Bookmarked by CoffeeDemon
18 Dec 2025
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Summary
When Abaddon comes crashing into Nathan’s life, he is forced to accept being an adult and having responsibility.
All of his problems have one origin– himself.
Series
- Part 1 of ShatterGlass
- Language:
- English
- Words:
- 120,208
- Chapters:
- 24/24
- Comments:
- 1,005
- Kudos:
- 1,224
- Bookmarks:
- 173
- Hits:
- 20,039
Bookmarked by CoffeeDemon
04 Dec 2025
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TMNT Crossover - A Shell of a Tale by AngelicGU4RDI4N
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024)
06 Jan 2025
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Summary
When a Kraang collider malfunctions, turtles are hurled across dimensions and crash into the gritty, high-stakes world of the 2012 TMNT universe. Tensions soar as their lives are turned upside down and the alternate turtles quickly realize how much darker and more dangerous this other New York truly is. The humans here are all on edge, and even the 2012 turtles can’t seem to loosen up. The Rise turtles try to bring in some fun but even they can't hold up the charade for long.
Bookmarked by CoffeeDemon
30 Nov 2024
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The Donatello hotline by Kisshufan4ever, mewsugarpudd
Fandoms: TMNT (2007), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles (1990s Movies), Teenage Mutant Ninja Turtles (Bay Movies), Teenage Mutant Ninja Turtles (TV 1987), Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles Adventures (Archie Comics)
06 Feb 2026
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Summary
Welcome to the Donatello Hotline, your queries are important to us.
A mysterious phone number has been circulating the multiverse claiming to help Donatellos. When one turtle gets desperate enough to call who will be on the other end?
Series
- Part 1 of The Donatello Hotline
Bookmarked by CoffeeDemon
29 Oct 2024
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It’s Not Abuse If They’re Family by SketchieFoxie
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
03 Feb 2025
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Summary
Mikey squinted when he saw his reflection. He didn’t look normal. The face staring back at him was incredibly familiar, like having déjà vu. Round face, freckled cheeks, orange mask, big blue eyes. Hadn’t he drawn this yokai earlier?
The filmy layer on the screen crept away, starting from the outer edges, creeping towards the center, revealing the face behind. It was a turtle mutant of sorts. Big eyes, medium length black hair, yellow freckles, and an orange bandana tied around his neck. The stranger’s eyes widened as he stared at Mikey, expression full of curiosity.
In a flash of blinding light, the two switch places, a Mikey and a Mikey, in two separate worlds.
Or: Rottmnt Mikey swaps places with 2012 Mikey, and the two go through life changing events. Rottmnt Mikey has to help banish the Krang a second time, in a new universe, while 2012 Mikey uncovers a mystery within his newfound family, potentially tearing them apart.
Bookmarked by CoffeeDemon
13 Oct 2024
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Off Colors: Contrasts by SibillaScribbles08
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Oct 2024
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Summary
There's a lot of mysteries surrounding Leo's life, and while he still lacked answers for some of them he gave up on pursuing them a while ago.
At least until a night out with his best friend April results in a rescue mission into the Hidden City. And upon stumbling into the lab where he and his father were mutated, he discovers he apparently has three siblings when his father only ever mentioned one.
Now motivated by this discovery–and some incredible magic weapons–Leo and April are determined to track these siblings down and reconnect with them.
Unfortunately, they're all pretty comfy staying where they are, and where they are is on the side of the guys who basically want to destroy the world.
And Leonardo may have to decide if he wants to save his siblings, or save the world.
Series
- Part 1 of Off Colors AU
Bookmarked by CoffeeDemon
08 Oct 2024
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The Day the World Broke by saladmix
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles (TV 2003), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (Bay Movies), TMNT (2007)
27 Feb 2025
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Summary
When TCRI experimentation rips the fabric of reality open, things get weird. And for four totally regular teenage mutant turtles, the world is about to get a lot more dangerous. It'll be up to every turtle in the multiverse to keep them safe and figure out how to stop the end of the world for all of them.
- Language:
- English
- Words:
- 430,165
- Chapters:
- 33/?
- Comments:
- 1,127
- Kudos:
- 1,009
- Bookmarks:
- 277
- Hits:
- 48,229
Bookmarked by CoffeeDemon
03 Oct 2024
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Red-Eared, Silver-Tongued by DuskEverlasting
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
25 Jun 2025
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Summary
The four intruders were standing near each other at the outskirts of the lab. Apart from some minor scuff marks and scratches marring their features, they seemed in decent shape, ready to attack in a moment’s notice. Yet their forms were sloppy. Amateurish. The weapons held by three of the four were stolen from Draxum’s stash, which Leo knew only because he’d originally stolen them in the first place.
Little details that paled in comparison to one glaring thing.
Oh, Leo thought. They survived.
The Separated AU as a slow burn found family and Leo angst fic.
- Language:
- English
- Words:
- 133,352
- Chapters:
- 24/?
- Comments:
- 963
- Kudos:
- 1,415
- Bookmarks:
- 250
- Hits:
- 38,114
Bookmarked by CoffeeDemon
28 Sep 2024
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Stranger in the Mirror by TotallyNotASecretAO3Account
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
21 Dec 2024
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Summary
(THIS IS A SEQUEL! Please read the first book in the series first: Dagger From the Mirror)
The Kraang's plan worked. Though three of the mind-controlled turtles were saved, Leo was not. With his help, the Kraang were able to kidnap his counterpart and take over all of New York City. The world is next.
It might be too late to ever stop it.
Series
- Part 4 of Dagger From the Mirror (TMNT 2012/2018 Crossover)
- Part 8 of TMNT Fics
- Language:
- English
- Words:
- 121,682
- Chapters:
- 29/?
- Comments:
- 757
- Kudos:
- 2,699
- Bookmarks:
- 338
- Hits:
- 79,922
Bookmarked by CoffeeDemon
28 Sep 2024
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You’re being adopted(Do not resist) by Threee
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Teenage Mutant Ninja Turtles (TV 2012)
09 Sep 2024
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Summary
The damage from Superfly was finally repaired. The turtles were settling into school and everything was going well. So, it's about time the universe threw them a curve ball.
They had finally saved New York, the Kraang were gone. All they really wanted to do was clean up the lair and sleep for a year. So, of course, the universe wouldn't let them.
The universe was cruel and uncaring but damn was it funny.
Bookmarked by CoffeeDemon
21 Sep 2024
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The Good, the Bad, and the Casey Jones by Tae_rhymeswithslay
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024)
02 Aug 2024
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Summary
Somehow, after saving New York from a giant, mutated fly, Leo, Raph, Donnie, and Mikey get whooped by some back-alley street punk late at night. The SAME back-alley street punk that stole April's scooter. They manage to get away with mild to severe injuries (Raph calls them mild while Leo flips out) and never see that guy again.
Until they go to school the very next day.
Maybe Casey Jones isn't all bad, but he definitely isn't all good either. Maybe he's just Casey Jones. (Maybe it's Maybelline)
Bookmarked by CoffeeDemon
17 Sep 2024
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Death by Chocolate by Ayohbee
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
22 Feb 2026
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Summary
An attempt on Draxum’s life goes awry and Leo gets poisoned instead. The Hamato clan searches for an antidote, but will the cure be worse than the poison itself? (Leo sure thinks so)
This takes place after my fic Truth Serum or Dare, but you don’t need to read that to understand what’s going on!
Bookmarked by CoffeeDemon
14 Sep 2024
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Reminiscing That Old Time by MissHowdoyoudo
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
28 Aug 2025
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Summary
The lab explosion still haunted Splinter, even seven years later. It wasn't because of the damage, or the trauma, though those were a big problem.
No. What haunted him most was the loss of one of his sons. A little turtle with red and yellow stripes. Gone, in a flash of orange fire.OR
A Separated AU WITH A TWIST aka Leo is a Tot during canonSeries
- Part 1 of RTOT
Bookmarked by CoffeeDemon
07 Sep 2024
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Blood is Thicker than Ooze by linkymew
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
28 Sep 2025
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Summary
Raised by Draxum as the weapon to help restore the yōkai to the surface, Purple would do anything for the yōkai that saved him from Lou Jitsu’s flames.
But twelve years after the incident that left him permanently scarred, three turtle mutants threaten his way of life and his father’s goals of yōkai domination.
Will he be able to stop them from ruining their plans in time? Or will he create unbreakable bonds with these turtles who’ve been brainwashed by the same man who abandoned Purple all those years ago?
- Language:
- English
- Words:
- 158,405
- Chapters:
- 29/?
- Collections:
- 6
- Comments:
- 1,073
- Kudos:
- 3,632
- Bookmarks:
- 583
- Hits:
- 105,165
Bookmarked by CoffeeDemon
06 Sep 2024
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I am stuck in a dream - TMNT 2012 by toffee_flower
Fandoms: Teenage Mutant Ninja Turtles (TV 2012)
01 Apr 2025
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Summary
(CURRENTLY EDITING CHAPTERS, STORY MIGHT BE WEIRD UNTIL IM DONE LMFAO)
Mikey’s always been a bit up in the clouds, but none of his brothers knew why. They assumed it was just because he didn’t have as many brain cells as the rest of them. But, after the Kraang invasion, it only seemed to get worse.
Now they’re interested, and Mikey’s not really ready to tell them.
[First 5 chapters happen BEFORE the main plot, just to provide insight and background!]
- Language:
- English
- Words:
- 95,052
- Chapters:
- 32/41
- Comments:
- 953
- Kudos:
- 1,543
- Bookmarks:
- 186
- Hits:
- 33,362
Bookmarked by CoffeeDemon
05 Sep 2024
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Bookmarked by CoffeeDemon
31 Aug 2024
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Welcome Home Brother by OptimisticallyCynical
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
22 Oct 2025
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Summary
Something's been feeling... off, to Leo lately. He feels like someone's been watching him even though no one ever seems to be there. But he's sure it's fine.
At least until a Donatello from a universe he's never seen shows up, calling him 'Nardo' and talking about bringing him home.
He's not sure what's going on, but he knows that he needs to get away from this unstable version of his brother before it's too late.
Now ‘Registered users only’ due to AI scrapping. Sorry.
- Language:
- English
- Words:
- 231,202
- Chapters:
- 57/?
- Comments:
- 2,501
- Kudos:
- 1,162
- Bookmarks:
- 146
- Hits:
- 36,693
Bookmarked by CoffeeDemon
25 Aug 2024
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Summary
Tang Shen lives, and an accident separates a turtle from his family.
This changes a lot of things.
- Language:
- English
- Words:
- 65,724
- Chapters:
- 19/?
- Comments:
- 410
- Kudos:
- 1,515
- Bookmarks:
- 262
- Hits:
- 35,982
Bookmarked by CoffeeDemon
18 Jul 2024
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Softshell in Human Clothing by HoonHarpoon
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
23 Feb 2026
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Summary
Donnie has everything perfectly under control. Sure, sometimes he hears the voices of those who aren't there, and sometimes he's not in control of his own body- but those are easy fixes. He's fine, dare he say even better than fine! He's so fine that he even constructed a portal to other dimensions in case the Krang come back! It's not like he worked endlessly, almost obsessively, over the portal for days, missing sleep and family trying to talk to him.
He's fine!
He's even fine when the portal swallows him whole and spits him out into a new universe with nothing but his battle shell and clocking broach.
One with alternate versions of him and his brothers, just starting out and fighting their own version of Kraang and bad guys. He's even fine when he gets dragged into their upcoming battles and fights. He's going to get home anyway; what's the harm in helping out his alternate family fight against Kraang?
Or:
Post-movie ROTTMNT Donnie gets sucked into Season 1 TMNT 2012.- Language:
- English
- Words:
- 119,749
- Chapters:
- 33/?
- Comments:
- 829
- Kudos:
- 2,630
- Bookmarks:
- 455
- Hits:
- 66,616
Bookmarked by CoffeeDemon
21 Oct 2023
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The Echo Garden by AltraViolet
Fandoms: The Transformers (IDW Generation One), Transformers: Prime, Transformers - All Media Types
04 Feb 2024
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Summary
Soundwave's banishment to the shadowzone has been bleak, uneventful and unending. He hasn't been able to contact Megatron or the Nemesis. He's low on fuel. If it weren't for the emotion-suppressing protocols he implemented before the war, he would be miserable.
And then one day a dimension-hopping Rodimus falls into the shadowzone and offers him a way out.
“You'll like the Lost Light,” said Rodimus. “Everyone gets a second chance, there. You wanna stay here forever?”
- Language:
- English
- Words:
- 344,978
- Chapters:
- 53/53
- Comments:
- 7,074
- Kudos:
- 8,543
- Bookmarks:
- 1,909
- Hits:
- 338,496
Bookmarked by CoffeeDemon
08 Dec 2022