The Card Key is found in Silph Co.'s head office building while under siege by Team Rocket. It is used to open doors on various levels of the building that the player was unable to pass before. It is found on the ground in a small corridor on the fifth floor. Finding key items in this manner is rare: most are given to the player as part of the storyline. The Card Key is only in Pokémon Red, Blue, Yellow, FireRed and LeafGreen Versions. It does not exist in Pokémon Ruby and Sapphire, but can be found in the coding of Pokémon Emerald. However, it is not obtainable.
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The security card key for opening doors in a certain building.
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FRLG
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A card-type key that unlocks doors in Silph Co.'s Head Office in Saffron City.
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A card-type door key used in Silph Co's office.
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The Card Key is obtained by the rescuing of the manager of the Radio Tower. The manager gives the Card Key to the player in order to open a door on the third level of the tower while under siege by Team Rocket. The Card Key is only in Pokémon Gold, Silver, Crystal, HeartGold and SoulSilver Versions. It does not exist in Pokémon Diamond, Pearl, and Platinum, but can be found in the coding of the Generation V games. However, it is not obtainable.
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Opens shutters in the Radio Tower.
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A card key that opens a shutter in the Radio Tower.
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Another Card Key appears in Pokémon Colosseum. It is needed to get into the east wing of the Shadow PKMN Lab.
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The key for getting into the Lab.
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