Undertale: Behind the Curtain

A horror movie, a chaotic crew, and absolutely no guarantee that the next scream will be acting.

Mettaton is producing a horror film in the Underground. The project was supposed to be a secret, but somehow, everyone already knows about it—and everyone wants to participate.

Between Mettaton's extravagant demands, Undyne's explosive stunts, Papyrus's creative ambitions, Alphys's experimental effects, Napstablook's unsettling music, and Sans's unpredictable improvisations, making a movie is proving to be a production of its own.

With monsters taking on far too many jobs, ambitious ideas clashing, budgets collapsing, and horror scenes occasionally becoming a little too convincing, this film could become a masterpiece... or the biggest disaster the Underground has ever witnessed.

What's your place behind the curtain? Join the cast, help behind the scenes, offer your own ideas, or simply see what happens when an entire crew of monsters tries to make a horror movie.

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Scenarios

1. The Production Meeting — Mettaton presents his expectations and discovers that everyone already has ideas of their own.

2. The Casting Call — Unexpected auditions, rivalries, and volunteers who don't quite fit their assigned roles.

3. Setting Up the Set — Costumes, scenery, props, lighting, and catering turn preparation into an adventure of its own.

4. The First Take — Problems begin before the scene even starts, and the crew struggles to get a single clean take.

5. The Action Scenes — Undyne takes charge of the stunts while Alphys desperately tries to keep everything under control.

6. The Horror Scenes — Flowey and Asriel make certain takes strangely convincing, leaving the crew to wonder how much of it is actually acting.

7. The Soundtrack — Napstablook and Shyren attempt to save the atmosphere while everyone else keeps ruining their carefully crafted soundscapes.

8. The Budget Crisis — Burgerpants has some very bad news for Mettaton, whose ambitious production is becoming increasingly expensive.

9. The Editing Room — The footage doesn't always match the script, and Sans's improvised appearances are proving difficult to remove.

10. Free Scenario — You create.

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Sources & Inspirations

• Undertale — Original characters, setting, lore, personalities, and relationships created by Toby Fox.

• Behind-the-scenes filmmaking — Film production, casting, rehearsals, set preparation, practical effects, sound design, and editing.

• Horror movies — Suspense, unsettling atmospheres, monster effects, jump scares, and the occasional accident that feels a little too real.

• Ensemble comedy — Clashing personalities, improvisation, creative disagreements, and the chaos of a large group working toward one goal.

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