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[[caption-width-right:344:"MEOW!" ''[[https://www.flickr.com/photos/johnfish/4175352901/ source]]'']]
->''"Survival Horror" is a fancy way of saying "Monsters will come through windows."''
-->--'''Gabe''', ''Webcomic/PennyArcade'', "[[http://www.penny-arcade.com/comic/1999/09/29/ Dino Crisis Sucks]]"
Building up suspense without boring the audience is not easy. Whatever is a director to do? Jump scares to the rescue! Everyone knows what a jump scare is: it's the horror technique of having something happen unexpectedly and suddenly (usually something popping up out of nowhere). It's frequently accompanied by an [[ScareChord equally sudden loud noise]] to go with it, and often happens after a period of tension-building to ramp up the nerves of both the character(s) and audience and make the scare that much more effective for both.
The classic example uses a loud brass horn, or a woman's scream. Jump Scares follow the law of diminishing returns. They're effective when accompanied by a slow build up of suspense, but too many will turn them into more of a nuisance than a genuine scare. A common VideoGame version is when the player is climbing a ladder, receiving a JumpScare at the top.
Sometimes overlaps with MirrorScare, ScreamerTrailer, SpringLoadedCorpse, PeekABooCorpse, TakeAMomentToCatchYourDeath, NightmareFace, ScareChord, SurpriseCreepy, and LastNoteNightmare.
CatScare and BatScare are subtropes in which the scare itself is false but the jump effect is retained.
When used on its own in a WebOriginal, it can be known as a [[ScreamerPrank screamer or a prank]]. You know, the videos that encourage you to [[SchmuckBait turn up the stereo and/or examine the picture closely]]. Related to ShockSite, where the startlement and horror arises from unexpectedly viewing a disturbing image.
See also ChandlersLaw.
No examples, please. We're just defining the term. If we ''did'' include examples, chances are we'd be sued for accidentally scaring some of our more delicate readers into the next life, if you catch our drift.