Fatal Error (undertale) - Freeform
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Summary
Reaper and Geno share a close yet strained relationship, one that only seems to be eternally heading for disaster. Yet instead of ending in a dramatic split like expected, their ties are cut short by Geno's premature demise by one ill-conceived murder attempt by Error. Yet, instead of that being the end, a completely new being makes themselves known.
Fatal Error.
Reaper had no plans in surviving Fatal's seemingly ambitious drive to destroy the multiverse as they know it. Yet, it seems that Fatal may yet have different, more intimate motivations after all.
Series
- Part 2 of Headcanon Fics
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Summary
Fatal Error's job is destroying. That's a good thing, because he's angry at everything all the time.
He happens to find himself in Outertale, right before it collapses onto two other AUs, and suddenly he's facing code annihilation via server reboot, and he's not too keen on finding out what that means. It's really too bad for him that all he has to get out of the situation is one single Outcode Sans with a dumb idiot stupid magical jar, that the jar is lost, and that the idiot dumbass stupid Sans insist on being friendly.
And maybe he kinda likes the idiotic stupid dumbass."W̸ho҈ ar̸e yo̶u?" A gruff, distorted speech, filled with aggression, rose up.
"By the seven souls, you're alive!", Dusk exclaimed, kind of like he was relieved and not surprised.
"Phew. You had me worried, stranger."
Discontinued.
Series
- Part 1 of Yet Another Battle
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Flash Fics for Suckyusername by Mochimunchies for Thisisareallysuckyusername
Fandoms: Undertale (Video Game)
05 May 2025
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Summary
A short collection of flash fics/oneshots written for Suckyusername!
Includes:
Chapter 1 - Errink (D&D AU)
Chapter 2 - Horrormare (Mer + Royalty AU)
Chapter 3 - Afterdeath + FatalDeath (Mer + Betrothal AU)
Chapter 4 - Crosscentric (Witcher AU)
Chapter 5 - Star Sans Poly (StreetRacing AU)Series
- Part 7 of Flash Fiction Giftfics
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Tags
Summary
A short collection of flash fics/oneshots written for Potatato4!
Includes:
Chapters 1 and 2 - Crosscentric (Witcher AU)
Chapter 3 - Scifell (Dr. STONE AU)
Chapter 4 - Goth and Palette Rollercentric (Mer AU)
Chapter 5 - Afterdeath + FatalDeath (Mer + Betrothal AU)Series
- Part 10 of Flash Fiction Giftfics
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Flash Fics for Mimicry by Mochimunchies for Mimicry_Grievous
Fandoms: Undertale (Video Game)
08 Jun 2025
Tags
Summary
A short collection of flash fics/oneshots written for Mimicry!
Includes:
Chapter 1 - Afterdeath + FatalDeath (Mer + Betrothal AU)
Chapter 2 - BEI (Mer AU)
Chapter 3 - Kustardberry (Mer AU)
Chapter 4 - Errink (Mer AU)
Chapter 5 - Killermare (Mer AU)Series
- Part 11 of Flash Fiction Giftfics