History Main / TwoKeyedLock

28th Mar '17 6:00:11 PM cluosborne
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* ''Film/SupermanIII'', to activate a satellite positioning system; although the two keys in question needed to be inserted simultaneously, not turned.

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* ''Film/SupermanIII'', to activate boot up a satellite positioning system; computer system located at a Webscoe subsidiary in Smallville called WheatKing; although the two keys in question needed to be inserted simultaneously, not turned.
19th Mar '17 11:57:34 PM tromag
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* Apparently, German libraries have a long tradition of keeping locked rooms known as the "giftschrank" (literally "poison cabinet") which contained censored writings considered to be hazardous (heretical writings in the past, Nazi literature more recently). In some libraries, the doors have dual locks with keys held by two separate staff members to ensure that only authorized people can access the works.
4th Mar '17 2:17:39 PM DarkHunter
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* Apparently, the final PowerLimiter placed upon [[PersonOfMassDestruction Hayate Yagami]] in ''Anime/MagicalGirlLyricalNanohaStrikers'' had to be removed simultaneously by [[TheBrigadier Admiral Chrono Harlaown]] and [[GoodShepherd Knight Carim]], making it a TwoKeyedLock even though they didn't have to be physically present near Hayate at the time.

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* ''Franchise/LyricalNanoha'':
** The Arc-en-Ciel superweapon in ''Anime/MagicalGirlLyricalNanohaAs'' requires two officers to activate, and special permission from the top brass for them to even carry the keys for it in the first place. Given the destruction it's capable of, this is well-warranted.
**
Apparently, the final PowerLimiter placed upon [[PersonOfMassDestruction Hayate Yagami]] in ''Anime/MagicalGirlLyricalNanohaStrikers'' had to be removed simultaneously by [[TheBrigadier Admiral Chrono Harlaown]] and [[GoodShepherd Knight Carim]], making it a TwoKeyedLock even though they didn't have to be physically present near Hayate at the time.
25th Jan '17 7:02:29 PM MiddleEighth
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[[folder: Fan Works]]
*The entrance to the white key chamber in ''Fanfic/TheKeysStandAlone: The Soft World'' is opened by two people placing their hands in two separate hand-shaped indentations, one on the floor, one on the ceiling.
[[/folder]]
23rd Jan '17 12:23:32 PM Morgenthaler
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* In the ''GearsOfWar'' novel, ''Jacinto's Remnant'', Chairman Prescott, Colonel Hoffman and somebody else had to insert three keys and turn simultaneously to activate the Hammer of Dawn technology that destroyed most of the planet. Prescott had it next to his car keys.

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* In the ''GearsOfWar'' ''VideoGame/GearsOfWar'' novel, ''Jacinto's Remnant'', Chairman Prescott, Colonel Hoffman and somebody else had to insert three keys and turn simultaneously to activate the Hammer of Dawn technology that destroyed most of the planet. Prescott had it next to his car keys.



* From the ColdfireTrilogy, the vault in which the holy relics of the failed Crusade against the Forest are stored behind a two keyed lock. The Patriarch holds one key.
* In ''[[TheGoodThiefsGuideToAmsterdam The Good Thief's Guide to Amsterdam]]'', each of three thieves keeps one of the three keys needed to open the safety deposit box that hold the fortune in diamonds that they stole. One of the three thieves hires the protagonist Charlie to steal his partners' keys.

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* From the ColdfireTrilogy, ''Literature/ColdfireTrilogy'', the vault in which the holy relics of the failed Crusade against the Forest are stored behind a two keyed lock. The Patriarch holds one key.
* In ''[[TheGoodThiefsGuideToAmsterdam The Good Thief's Guide to Amsterdam]]'', ''Literature/TheGoodThiefsGuideToAmsterdam'', each of three thieves keeps one of the three keys needed to open the safety deposit box that hold the fortune in diamonds that they stole. One of the three thieves hires the protagonist Charlie to steal his partners' keys.
23rd Jan '17 1:06:16 AM Morgenthaler
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* Used in ''VideoGame/SonicChronicles: The Dark Brotherhood'' when you had puzzles where four characters had to stand in certain spots to unlock doors.

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* ''Franchise/SonicTheHedgehog'':
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Used in ''VideoGame/SonicChronicles: The Dark Brotherhood'' when you had puzzles where four characters had to stand in certain spots to unlock doors.



* ''VideoGame/TheLegendOfZeldaFourSwords''-series has a lot of puzzles which include the "four buttons, each of them only triggers if a person is standing on it"-factor. In some of the games this is subverted by "one player controls four characters". At some places this is required to move on, at others it's just "drop a lot of loot"!

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* ''Franchise/TheLegendOfZelda'':
**
''VideoGame/TheLegendOfZeldaFourSwords''-series has a lot of puzzles which include the "four buttons, each of them only triggers if a person is standing on it"-factor. In some of the games this is subverted by "one player controls four characters". At some places this is required to move on, at others it's just "drop a lot of loot"!
23rd Jan '17 1:05:20 AM Morgenthaler
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* Used as a minigame in ''VideoGame/FinalFantasyVII'', where to open a security door three party members must push three widely separated buttons at the same time, the player only controls Cloud and has to timed their button press with Tifa and Barret's automatic button presses.
* The Four Shrines in ''VideoGame/FinalFantasyIX'' must be activated simultaneously, but the only impact this has on gameplay is forcing you to fight a boss with just two characters; you don't control the rest.

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* ''Franchise/FinalFantasy'':
**
Used as a minigame in ''VideoGame/FinalFantasyVII'', where to open a security door three party members must push three widely separated buttons at the same time, the player only controls Cloud and has to timed their button press with Tifa and Barret's automatic button presses.
* ** The Four Shrines in ''VideoGame/FinalFantasyIX'' must be activated simultaneously, but the only impact this has on gameplay is forcing you to fight a boss with just two characters; you don't control the rest.
23rd Jan '17 1:04:48 AM Morgenthaler
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* Oddly enough, only two "puzzles" in ''VideoGame/ResidentEvil4'' need Leon and Ashley to do this.

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* ''VideoGame/ResidentEvil'':
**
Oddly enough, only two "puzzles" in ''VideoGame/ResidentEvil4'' need Leon and Ashley to do this.
23rd Jan '17 1:04:20 AM Morgenthaler
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* The lab where the Extremis samples were kept in ''IronMan: Extremis''. [[spoiler:This was a key plot point.]]

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* The lab where the Extremis samples were kept in ''IronMan: ''ComicBook/IronMan: Extremis''. [[spoiler:This was a key plot point.]]



* In AmazingGraceAndChuck, the explanation of why this is in place in the nuclear missile control room (and why the men stationed in such a secure area are armed) is part of what terrifies Chuck when he's touring the silo.

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* In AmazingGraceAndChuck, ''Film/AmazingGraceAndChuck'', the explanation of why this is in place in the nuclear missile control room (and why the men stationed in such a secure area are armed) is part of what terrifies Chuck when he's touring the silo.



* ''[[VideoGame/MetroidPrime Metroid Prime 3: Corruption]]'' has you do this with a GF trooper in order to activate an elevator. [[spoiler:The "trooper" in question is the shape-shifting foe Gandrayda.]]

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* ''[[VideoGame/MetroidPrime Metroid Prime 3: Corruption]]'' ''VideoGame/MetroidPrime3Corruption'' has you do this with a GF trooper in order to activate an elevator. [[spoiler:The "trooper" in question is the shape-shifting foe Gandrayda.]]



* Done in ''VideoGame/ModernWarfare 3'' in a mission where you play as Frost and have to infiltrate a Russian submarine. The level has you launching missiles from the sub onto the other Russian boats, but before you can do so Frost and Sandman have to use a two-keyed lock to open the button that launches the missiles. Sandman also apparently gets both keys from the Captain, which does seem to defeat the point; but then again, they aren't nuclear missiles.
* Happens all the time in ''GearsOfWar 2''.

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* Done in ''VideoGame/ModernWarfare 3'' ''VideoGame/ModernWarfare3'' in a mission where you play as Frost and have to infiltrate a Russian submarine. The level has you launching missiles from the sub onto the other Russian boats, but before you can do so Frost and Sandman have to use a two-keyed lock to open the button that launches the missiles. Sandman also apparently gets both keys from the Captain, which does seem to defeat the point; but then again, they aren't nuclear missiles.
* Happens all the time in ''GearsOfWar 2''.''VideoGame/GearsOfWar2''.
23rd Jan '17 1:02:59 AM Morgenthaler
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[[folder:Film]]

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[[folder:Film]][[folder:Films -- Animated]]
* Used to shut down [[spoiler:honey production]] in ''WesternAnimation/BeeMovie''.
* In ''WesternAnimation/InsideOut'', Riley's father's emotions need to turn two keys (held by his Fear and Disgust) to fire the foot (i.e. tell Riley to go to her room).
[[/folder]]

[[folder:Films -- Live-Action]]



* Used to shut down [[spoiler:honey production]] in ''WesternAnimation/BeeMovie''.



* In ''Pixar/InsideOut'', Riley's father's emotions need to turn two keys (held by his Fear and Disgust) to fire the foot (i.e. tell Riley to go to her room).
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