1 - 20 of 157 Works in Trans Mettaton (Undertale)
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If you're going to be so dramatic, then ACT! by phantom_scout_org
Fandoms: Deltarune (Video Game), Undertale (Video Game)
20 Dec 2025
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In an attempt to rediscover his passions, Mettaton, after almost a decade of performing, is going back to school. Specifically getting his masters with the New Home University graduate acting program. Less paparazzi and closer to home. In an insane stroke of luck, for his first teaching assistant-ship he is assigned to his biggest idol. He's not what he's cracked up to be.
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Nothing lasts forever, and showbiz moves fast. After decades of programing, Mr Ant Tenna's TV Time airs its last episode. That was 5 years ago. For the last few years Mr. Tenna has been working as a acting teacher at New Home University. Unfortunately, in some sick joke on the universes part, Tenna is assigned his replacement as his assistant this semester.
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When ghosts haunts the past of human and monster alike, the lingering spirits of two band together to piece together a past lost, and a WISH forgotten.
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- Part 1 of A Ghost Story
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overdue maintenance by SunlitStruggles for Lemonotangerines
Fandoms: Deltarune (Video Game)
14 Dec 2025
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Tenna is overdue some maintenance. Mettaton and Battat have just the idea of how to get things sorted, in more way than one.
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- Part 1 of Deltarune Requests
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Five months after their first meeting, Tenna finally comes clean. To his surprise, it seems Mettaton has something to admit to him as well.
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- Part 6 of Ghoul's Mettatenna Collection
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cherish these few specks of time by Rockium
Fandoms: Undertale (Video Game), Everything Everywhere All at Once (2022)
04 Dec 2025
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"O-okay, fine! Fine! I'll tell you, just don't laugh," she surrenders, face flushing hot, "you know about alternate universes, right? I told you?"
"Of course." He leans forward.
"W-well, there's got to be some universal constants across most universes, right? So, uh, I was just wondering..." and her voice softens into a pink shade of shy, "do you think we would be friends? In every universe?"
(Or: Alphys and Mettaton, across timelines and lifetimes and universes.)
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A day has passed since Tenna settled into life with Mettaton- watched and appreciated, he's very hesitantly happy with this new, shaky life.
That is, until two certain kids get a little too curious, making the Knight have to set an example- or, perhaps, cause a distraction?
Originally a supposed murder attempt, Tenna can now walk around in the Light World, able to switch between ordinary TV and monster. Now he has to actually put the work into acting like a person, sorting through his trauma, and getting to know his new roommate. When characters from his past start making things more complicated, will he be able to handle the pressure? Or will he shatter for a third time?
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Did you know that ghosts make electronics go kinda wonky? It goes both ways though
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Tenna’s been assigned a new co-star by the network. Perhaps this handsome new partner will be improve more in Tenna’s life than just his ratings?
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Ghosts, and Television by Withawun
Fandoms: Deltarune (Video Game), Undertale (Video Game)
26 Nov 2025
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Mettaton is a recluse, and while he does find solace in his cousins, and a couple strangers who knock at his door, he finds the most satisfaction from a television the pair give to him.
The warmth from the screen, the programs he feels like it is purposely showing him, it's weird but... he feels like the TV loves him, in a way that he hasn't been loved before...
He fingers himself to a TV I'm not gonna lie lol
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BEDROOM FURNITURE FOR 100% OFF by hochimama
Fandoms: Deltarune (Video Game), Undertale (Video Game)
21 Nov 2025
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After Spamton had made like a banana and split, Tenna had to spend the last twenty-something years of his life healing the empty space left in his show, his rooms, his chest. To try and get him to just partner up with Spamton again after all that—it was more than a little reductive.
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- Part 3 of The AU where everyone is human
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Where Blood Meets Bone, Metal Meets Tears / Bandaids by YourLocalHyperfixater
Fandoms: Undertale (Video Game)
17 Nov 2025
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Sans takes Papyrus to see his idol live at a concert on a hoped to be a very fun night for the brothers! Sadly though, it ends with blood and tears.
Really, what a shock to find the very great, awsome, "always okay" skeleton sobbing in a public bathroom...
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ughhh yup vent work okay- not really at the brightest part of my life currenty.. but anyways!!
(Name inspired by Metal Meets Bone by Fandere0)
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Feeling more than a little emotionally fatigued from yesterday’s Light World obligations, Mettaton decides to call out for the rest of the afternoon. Tenna takes it about as well as you’d expect.
(Written for #MTTVember / Day 14: Glooby)
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After These Messages! by PerfumeTripper
Fandoms: Undertale (Video Game), Deltarune (Video Game)
10 Nov 2025
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Mettaton would never just let Tenna fuck him on stage, right? …Right?
11/10: chapter 2 babies
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After finally figuring out a good body in the dark world, Mettaton decides he wants to learn about how wires work. Thankfully, his favorite television (host) is happy to help.
Technically the wireplay/sex second part of my other fic, electric sheep. This can, however, be read as a standalone.
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“I appreciate it, darling,” Mettaton said when the tears abated, “but I’m afraid I can’t fully comprehend it. The thought of anyone, let alone you, calling me marvelous? All I hear is static, I’m afraid. I... I’m sorry.” He shuddered and wished it was due to the thumb caressing him. “I am so sorry. I don’t know what is wrong with me.”
This was the part where Tenna tossed up his hands, admitted defeat, and left. Who would want to bother with a lost cause? No words existed to remedy Mettaton.
But Tenna didn’t leave.
He stayed.
And he also said—
“Would it help if I SHOWED YOU?”
Mettaton struggles with his confidence and self-image in the Dark World. Thankfully, Tenna is more than willing to show him how wonderful he truly is.
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- Part 9 of Mettatenna for Kinktober 2025
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Mettaton's tragically in love with his television. Thank God that television loves him back.
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Mettaton gets gifted a TV!! But...It has some issues. That's fine! Mettaton has their own issues!
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Maddie's got a date! As her ever-supportive cousins, Mettaton and Blooky are to come along and act as her wing-ghosts. Metta picks his outfit.
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- Part 2 of mttv-time's MTTVember 2025
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Ghost monsters aren’t that common in the Light World. If they were, maybe someone would have warned Mettaton how easy it was to accidentally trip and fall into the nearest Dark World. Good thing his new television is nearby and ready to catch him!
(Written for #MTTVember / Day 2: Sparks)
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"It's just for a while," Tenna told Mettaton, though he was realizing it sounded more like a plea. "He needs me."
Mettaton shucked off his jacket. "Everyone needs you, darling. That script is old."
Series
- Part 2 of The AU where everyone is human