ArgentDandelion’s Undertale Prompts 114
Post-Pacifist: Onionsan (who is very large) stars in creative advertisements for plus-size clothing.
Post-Pacifist: Asgore is sent to prison for his crimes...as is everyone who has ever killed or knowingly endangered a human in the past hundred years.
Post-Pacifist: Most of the cast gets sent to prison for trying to kill Frisk. Sans gets off easy...but Frisk wonders whether to reveal his crimes.
Post-Pacifist: (Slightly dirty) Toriel tells an innocent monster joke that makes another human spit out their drink. (e.g., "You know what they say about men with big feet...they also have big paws.")
Post-Pacifist: (ANGST) An older Frisk gets traumatic flashbacks when covering the more gruesome, murderous aspects of history class or a comparable documentary.
Post-Pacifist/AU: Frisk, apropos of nothing, starts killing off monsters. Flowey must find the Second-Most-Determined Person and get them to stop Frisk.
AU: Frisk brutally beats everyone in the Underground in a rap-off or dance-off, and gets to Sans...who’s a little annoyed Frisk hurt his brother’s confidence in his dancing ability.
Post-Pacifist: While visiting a kiddie roller coaster (where parents don't ride with their kids), a ride attendant assumes Papyrus is Sans' dad.
Most timelines: All ghosts look identical, and Napstablook must differentiate using headphones.
AU: Frisk deliberately dies (e.g., by eating a Tide Pod) in order to reset the timeline. Surprisingly, they gain LV, because they technically killed someone. (Inspired by Risen Child)
AU: Alphys finds herself in the role of Fanon Sans as a “hero of the timeline.” She is very ill-equipped...
Post-Neutral/AU: In the Annoying Dog ending, all the killed bosses eventually show up, with various excuses for their absences. Sans eventually discovers The Annoying Dog himself is resurrecting them...and it’s a disturbing process.
Post-Neutral: Napstablook is distressed at the Dirty Hacker ending. Lots of people seem dead at one moment, and alive at another.
AU: Short, big-headed Canon Sans keeps offering a tense, attractively-proportioned Fanon Sans a hot dog.
AU: Sans lures in Papyrus with a piece of paper on attached to a string on a fishing rod. The piece of paper says, “Power, prestige, and popularity”. (Sans is surprised it works.)
Post-Pacifist: Flowey visits a graveyard and pointedly avoids all the graves...because he doesn’t want to eat humans by proxy.
Post-Pacifist: Flowey criticizes someone’s brownies as tasting like manure, saying something like: “I would know, I’ve tried fertilizer!”
Post-Pacifist: Flowey has a video series where he reviews synthetic fertilizer...on taste.
Post-Pacifist: Flowey has a very aggressive video series where he chastises people on common gardening mistakes.
