"Emperor's Key" (皇の鍵 Ō no Kagi) is an instrumental musical composition from the Japanese version of Yu-Gi-Oh! ZEXAL. It is the 6th listed track on Yu-Gi-Oh! ZEXAL Sound Duel 1, and is 1:37 long.
Appearances[]
"Emperor's Key" was played in the following episodes:
- Yu-Gi-Oh! ZEXAL episode 55: "Portal of Doom" when Kaito and V start their Duel.
- Yu-Gi-Oh! ZEXAL episode 82: "Sphere Cube Calamity, Part 1" when Yuma dreams about the encounter between him and Astral, and Numbers 107: Galaxy-Eyes Tachyon Dragon.
 | This listing is currently incomplete. |