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Pressure Plate (view source)

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{{trope}}
{{quote|''"Please place the Weighted Storage Cube on the [[Expospeak Gag|1500-Megawatt Aperture Science Heavy Duty Super-Colliding Super Button]]."''|'''GLaDOS''', ''[[Portal (Video Game)|Portal]]''}}
|'''GLaDOS'''|''[[Portal (series)|Portal]]''}}
 
A '''Pressure Plate''' is a switch that's activated with the addition (or removal) of weight on it. Sometimes they're used for [[Block Puzzle|Block]]s, Puzzlesespecially in ''[[The Legend of Zelda]]'' games. Sometimes they're to make sure you need two people or several objects to get through an area. Sometimes they just mean you don't have to press the use button by physically replacing a button or lever. And other times, they open a doorway, but it also activates a time limit., Whatever the case, a surprising number of mechanical doors are hooked up to pressure plates. Common in puzzle platformers.
{{examples}}▼
 
▲{{examples}}
== Films -- Live-Action ==
== [[Film]] ==
* In ''[[Raiders of the Lost Ark (Film)|Raiders of the Lost Ark]]'', an idol that Indy needs is set upon a pressure plate, such that removing it without putting something equally heavy in its place will collapse the cave. Unfortunately, Indy miscalculates the exact amount of weight and has to book it out of there.
* The first of ''[[The Librarian]]'' movies with Noah Wyle features a shout out to the above. Finding the first [[MacGuffin]], the love interest reaches for it. The Librarian pulls her back and throws a rock at it. [[MacGuffin]] moves, Enormous stone head slams down in front of the pedestal.
 
== [[Literature]] ==
* In ''[[Discworld (Literature)/The Fifth Elephant|The Fifth Elephant]]'' there's a [[Locked Room Mystery|locked room]] with a pressure plate near the entrance that compares the weight of people entering and leaving. So how was the Scone of Stone stolen?▼
 
== Literature[[Live-Action TV]] ==
* One episode of ''[[The Wild Wild West (TV series)|The Wild Wild West]]'' had a cart weigh-scale rigged to explode if weight was removed from it. Of course, Jim, Artie, and the [[Girl of the Week]] were knocked out and dropped onto the scale's pressure plate before it was rigged. However, the plate wasn't rigged to explode if more weight was added.
▲* In ''[[Discworld (Literature)/The Fifth Elephant|The Fifth Elephant]]'' there's a [[Locked Room Mystery|locked room]] with a pressure plate near the entrance that compares the weight of people entering and leaving. So how was the Scone of Stone stolen?
 
== [[Tabletop Games]] ==▼
 
* ''[[Tableto Game/Dungeons And Dragons|Dungeons And& Dragons]]'' players ''dread'' the activation of a pressure plate, because nine times out of ten, it will set off a nasty trap that will ruin your whole day.▼
▲== Tabletop Games ==
▲* ''[[Tableto Game/Dungeons And Dragons|Dungeons And Dragons]]'' players ''dread'' the activation of a pressure plate, because nine times out of ten, it will set off a nasty trap that will ruin your whole day.
** Subverted in one of the Grimtooth's trap books for d20 systems, which features the "Click Plate", a pressure plate that gives an ominous click when you step on it... and does nothing else. No problem... unless you intersperse them in a trapped dungeon with other plates that go click just before the trap goes off...
 
== [[Video Games]] ==▼
 
* On your way to the Red Queen's domain in ''[[American McGee's Alice (Video Game)|American McGee's Alice]]'', you need to retrieve an insane child(who ran off the pressure plate) back to stand on it to open the gate to the portal.▼
▲== Video Games ==
* ''[[Portal (Video Gameseries)|Portal]]'' has many of these, usually involving the [[Companion Cube]].▼
▲* On your way to the Red Queen's domain in ''[[American McGee's Alice (Video Game)|American McGee's Alice]]'', you need to retrieve an insane child(who ran off the pressure plate) back to stand on it to open the gate to the portal.
* ''[[Dwarf Fortress]]'' has pressure plate as the only trigger for mechanisms not requiring a deliberate action (unlike the lever), and thus cornerstone of all Dwarven automation.
▲* ''[[Portal (Video Game)|Portal]]'' has many of these, usually involving the [[Companion Cube]].
** The main variants are single-use or resetting, triggered by enemies (commonly used in traps) or by civilians (useful for things like [[Decontamination Shower]]) in the designated range of weights. Diplomats, merchants and their animals and some creatures avoid either type and invaders will not activate any pressure plates that have been observed by any diplomat from their civilization. However, any creature activates any plate if drops on it, unconscious or webbed. Also, plates can be triggered by the chosen level of liquid (whether water or magma) or mine carts on tracks (also within the given range of weights, which has many uses - such as making sure that a minecart with rider won't be accidentally allowed to visit the magma-scooping track, or that a vampire artisan receives raw materials and sends produced items, but stays locked at all times), allowing to build various automated systems, whether as complex death traps (e.g. plate toggles the mechanism connecting watermill power to roller, roller propels a minecart full of magma on the track toward a cart stop, which is set to dump carts' contents onto a floor grate above the tile next to that plate), for practical purpose (e.g. water level sensitive valve maintain safe water level in a reservoir, or repeated activation of traps with training weapons in an area designated for soldiers' sparring, to make sure [[Stat Grinding|Dodge skill is used often]]) and for fun (e.g. digital clocks).
* ''[[Dwarf Fortress (Video Game)|Dwarf Fortress]]''. The key difference is that instead of pressing them yourself to do things, you get others to press them.* One memorable use is to[[AI haveBreaker]] a set ofinvolving pressure plates that open and close doors or bridges, then chain up an animal onlaving eithertwo endpaths to it, load itthe corridor with automated traps, and get goblins to run down it. When they hit a plate, it closes the bridge they're running towards, preventing them from pathing to the cat chained on that end, so they reverse direction and head the other way. Over the traps. [[Artificial Stupidity]] can be fun as well as !!FUN!!.
* Various Rare games: ''[[Donkey Kong 64 (Video Game)|Donkey Kong 64]]'', ''[[Banjo-Kazooie (Video Game)|Banjo-Kazooie]]'', ''Banjo-Tooie''...▼
** Giant keas are large enough to crack a dwarven skull if cornered, and afflicted with kleptomania that leads them to try and carry away random items — which is a bad combo, of course. But since this bird can lift a minecart… and track pressure plates allow to implement fairly reliable traps (lethal or not).
▲* Various Rare games: ''[[Donkey Kong 64 (Video Game)|Donkey Kong 64]]'', ''[[Banjo-Kazooie (Video Game)|Banjo-Kazooie]]'', ''Banjo-Tooie''...
** There is a simple [[Block Puzzle]] in the last level of ''[[Perfect Dark]]'' which is needed to reach the final boss.
* ''[[La-Mulana (Video Game)|La-Mulana]]'' features placing bags of sand on pressure plate pedestals as a primary game mechanic. There are also the tiles which you have to [[Block Puzzle|push blocks]] onto, several of which cause other blocks to appear out of thin air. There are also the old standby "step on it and something happens" type, although they're relatively rare.
* Let's see, is there a ''Zelda'' game that doesn't have this?
** ''[[Zelda II: the Adventure of Link (Video Game)|Zelda II theThe Adventure of Link]]'', and the little-known [[Game and Watch]] game.
* ''[[Evil Genius (Videovideo Gamegame)|Evil Genius]]'' has them too.
* The old ''[[Eye of the Beholder (Video Game)|Eye of the Beholder]]'' games have doors (and various other mechanisms) triggered by pressure plates in the floor. Some were activated by you, others by monsters, and yet others by items (and sometimes very specific items).
* Ol' good ''[[Prince of Persia (Video Game)|Prince of Persia]]'' made extensive use of pressure plates to open distant doors; they could be held down permanently with a slain [[Mook]] or a fallen [[Temporary Platform]].
* ''[[The Simpsons Game (Video Game)|The Simpsons Game]]'' parodied this among many other videogame tropes.
* The map WAR-TankCrossing in ''[[Unreal Tournament III (Video Game)|Unreal Tournament III3]]'' has pressure plates for tanks. They are necessary to take down the Cores.
* Sometimes summoned in ''[[Eternal Darkness (Video Game)|Eternal Darkness]]''.
* Lots of them in the ''[[Lego Adaptation Game (Video Game)|LEGO Adaptation Games]]s''.
* ''[[Fallout (Video Game)|Fallout]]''
** ''[[Fallout 3 (Video Game)|Fallout 3]]'' has traps that can be set off by a pressure plate. With a high enough Repair skill, you can disarm the plate before stepping on it- if you notice it. There's also a perk called Light Step which means that your character can ''jump up and down on the plate'' and still never set it off.
** Earlier ''Fallout'' titles used pressure plates for a variety of traps ranging from the classic spear-thrower to explosive mines. Players could use the Trap skill to detect and defuse traps for a small amount of XP. A [[Critical Failure]] when attempting to defuse a trap usually set it off.
* ''Bloodwych'', which includes puzzles where you have to either leave a party member behind on a pressure plate, or (if playing multiplayer) have the other player's party stand on the pressure plate.
* ''[[Thief (Video Gameseries)|Thief: The Dark Project]]'' has pressure plates, used both for triggering traps and activating mechanisms such as doors. Weighting them down with junk can be useful for both kinds.
* In ''[[Resident Evil 5 (Video Game)|Resident Evil 5]]'', the Ndipaya tribe are apparently very fond of these as even their heavily-guarded ancient uins feature these.
* First-generation ''[[Pokémon]]'' games and their remakes featured these in Victory Road, in the form of a [[Block Puzzle]].
* In one of ''[[Tales of Symphonia (Video Game)|Tales of Symphonia]]'''s many [[Block Puzzle]] areas, one of them (in an [[Absurdly Spacious Sewer]]) had a [[Pressure Plate]] you had to slide a block onto. There were other instances similar to this, but only the sewer one was a blatant [[Pressure Plate]].
* ''[[Soul Reaver]]'' beat the Christ out of this trope as part of its beating-the-Christ-out-of the Block Puzzle.
* ''[[Dragon Age (Video Game)|Dragon Age]]'' has them as trap triggers.
* These show up in the [[Edutainment Game]] ''Math Blaster 2: Secret of the Lost City''.
* ''Golden Eye'' uses a puzzle like this in the Aztec level, [[Guide Dang It|based on]] ''[[The Man With the Golden Gun (Film)|The Man Withwith the Golden Gun]]''.
* ''[[The Sims (Video Game)|The Sims]] 3: World Adventures'': There are two types of these in the tombs you traverse on your adventures: the kind you just need to step on once to (unlock a door/disable a trap), and the kind that requires constant weight (like say, from a moveable statue in the room).
* A staple of ''[[Tomb Raider]]'' games. Many of them require a block to keep the plate pressed down so a door or other mechanism stays active.
* A few puzzles in ''[[Gish (Video Game)|Gish]]'' feature this.
* ''[[King's Quest Mask of Eternity (Video Game)|King's Quest: Mask of Eternity]]'' had these. You're meant to hold them down with rocks, but you can avoid this if you manage to kill a monster so that it falls on the plate.
* ''[[Rise of the Triad]]'' uses "touchplates" a lot; on the easy difficulty, the game tells you when you have triggered them and what they just did.
* ''[[Jumper (Videovideo Gamegame)|Jumper]]'' and ''Jumper Two'' feature several such puzzles.
* Wii version of ''[[A Boy and His Blob (Video Game)|A Boy and His Blob]]'' has them all over the place.
* ''[[Minecraft (Video Game)|Minecraft]]'' allows the player to craft two kinds of them: stone plates, which can only be triggered by the player or mobs, and wooden ones, which can also be triggered by dropped items.
* ''[[Vampire: The Masquerade Bloodlines (Video Game)|Vampire: The Masquerade Bloodlines]]'' features these as trap buttons to ensnare the unwary during the endgame.
* ''[[Patapon]] 3'' has pressure plates in some of the dungeon levels to open gates and stuff.
* ''[[Stealth Bastard (Video Game)|Stealth Bastard]]'' has pressure plates as common puzzle elements which can be pushed down by platforms, player, blocks and robots.
* Pressure plates are found throughout ''[[Legend of Grimrock]]'', used to raise/lower gates and activate [[Trap Door|trap doors]].
 
== [[Web Comics]] ==
* ''[[The Order of the Stick (Webcomic)|The Order of the Stick]]'', as a ''D&D''-inspired comic, has this as a stapple of the traps found in dungeons by the Order. Vaarsuvius gets caught by a rather nasty one in the Draketooth pyramid in [httphttps://www.giantitp.com/comics/oots0843.html strip #843].▼
* ''[[Girl Genius (Webcomic)|Girl Genius]]'': In Castle Heterodyne, pressure plates are only one of the many ways intruders can get themselves messily killed.▼
{{quote| '''Zola:''' Avoid any floorstone marked in ''white''. It is a trap that will kill you.}}▼
 
== Web[[Western ComicsAnimation]] ==
* In ''[[Avatar: The Last Airbender (Animation)|Avatar: The Last Airbender]],'' the Sun Warriors' temple has a room with a ring of statues and corresponding pressure plates. When visitors perform the dragon [[Insistent Terminology|firebending form]] on the pressure plates, a pedestal with a golden egg on it comes out of the ground. [[Schmuck Bait|Don't touch the egg.]]▼
▲* ''[[The Order of the Stick (Webcomic)|The Order of the Stick]]'', as a ''D&D''-inspired comic, has this as a stapple of the traps found in dungeons by the Order. Vaarsuvius gets caught by a rather nasty one in the Draketooth pyramid in [http://www.giantitp.com/comics/oots0843.html strip #843].
* In the ''[[My Little Pony: Friendship Is Magic (Animation)|My Little Pony Friendship Is Magic]]'' episode "Read it and Weep" the protagonist of the story Rainbow Dash is reading has to steal a small stature from off of a pressure plate, referencing the famous ''[[Raiders of the Lost Ark (Film)|Raiders of the Lost Ark]]'' scene. Only the protagonist in question doesn't even attempt to trick the counterweight system and grabs the statue anyway, triggering a massive [[Death Trap]].▼
▲* ''[[Girl Genius (Webcomic)|Girl Genius]]'': In Castle Heterodyne, pressure plates are only one of the many ways intruders can get themselves messily killed.
* Seen in some [[Dungeon Crawling]] episodes in ''[[Wakfu (Animation)|Wakfu]]''. The ones from the [[Temple of Doom]] of the Dragon-Pig are especially nasty: the pressure plates change positions regularly, and the safe ones can only been spotted by looking into mirrors framing the trapped corridor. The heroes don't quite make it without triggering the trap.▼
▲{{quote| '''Zola:''' Avoid any floorstone marked in ''white''. It is a trap that will kill you.}}
{{quote| '''Sadlygrove:''' I really don't like clicks!}}▼
 
 
== Western Animation ==
▲* In ''[[Avatar: The Last Airbender (Animation)|Avatar: The Last Airbender]],'' the Sun Warriors' temple has a room with a ring of statues and corresponding pressure plates. When visitors perform the dragon [[Insistent Terminology|firebending form]] on the pressure plates, a pedestal with a golden egg on it comes out of the ground. [[Schmuck Bait|Don't touch the egg.]]
▲* In the ''[[My Little Pony: Friendship Is Magic (Animation)|My Little Pony Friendship Is Magic]]'' episode "Read it and Weep" the protagonist of the story Rainbow Dash is reading has to steal a small stature from off of a pressure plate, referencing the famous ''[[Raiders of the Lost Ark (Film)|Raiders of the Lost Ark]]'' scene. Only the protagonist in question doesn't even attempt to trick the counterweight system and grabs the statue anyway, triggering a massive [[Death Trap]].
▲* Seen in some [[Dungeon Crawling]] episodes in ''[[Wakfu (Animation)|Wakfu]]''. The ones from the [[Temple of Doom]] of the Dragon-Pig are especially nasty: the pressure plates change positions regularly, and the safe ones can only been spotted by looking into mirrors framing the trapped corridor. The heroes don't quite make it without triggering the trap.
▲{{quote| '''Sadlygrove:''' I really don't like clicks!}}
 
{{reflist}}
[[Category:Trope{{PAGENAME}}]]▼
[[Category:Alliterative Trope Titles]]
[[Category:Video Game Tropes]]
[[Category:Pressure Plate]]
▲[[Category:Trope]]
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