An object, formula, or other device that functions to trigger another trope within a work.
Narrative Device. A trope for handling tropes. If an author has a trope that turns out to be popular, or that he plans to use frequently, he writes a Trope Trigger into the storyline so that whenever he needs the "triggered" trope he just drops in an instance of the Trope Trigger. Depending on the form of the trigger, it might be used for Foreshadowing: when the audience sees the trigger, they know the "triggered" trope can't be far away. Compare/Contrast with MacGuffin, Plot Sensitive Button, or Berserk Button. The MacGuffin is nearly always an object, while the Trope Trigger may or may not be. The MacGuffin usually has no other function except as the thing that everything revolves around. The Trope Trigger is defined by the trope it activates. The Plot Sensitive Button is a physical object that is used repeatedly throughout the work but produces different effects at different times. The Trope Trigger always produces the same effect. If a character with a Berserk Button gets angry at any minor provocation then it is not a "triggered" trope. If there is a particular trigger that always pushes a character's Berserk Button (e.g. an obnoxious brother or the color red), then that is a Trope Trigger.
Examples[[foldercontrol]] [[folder:Anime & Manga]]