Key Blocks are recurring items in the Legend of Zelda series. Found within certain dungeons, they are Blocks with keyholes in them that block Link's path. To get past one, Link must insert a Small Key into the keyhole, causing the block to disappear. Big Keys are used for this purpose instead in A Link to the Past. In Phantom Hourglass and Spirit Tracks, Key Blocks exist solely as Boss Doors.

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