The Kingdom Key is the most recognizable Keyblade in the Kingdom Hearts series, as it appears within each game of the series, and frequently serves as the default Keychain for cutscenes. In Kingdom Hearts: Chain of Memories, it is the only Keychain that Sora can visibly use, while in Kingdom Hearts 358/2 Days, it is the only Keychain of Xion's to appear in Story Mode, and excluding the final Mission, the only Keychain of Roxas's to appear in any cutscene. Furthermore, while Kingdom Hearts II normally depicts the equipped Keyblade within cutscenes, the Kingdom Key appears by default in the cutscene leading up to the Battle of the 1000 Heartless, and within the Album pictures of Jiminy's Journal. (more...)