"Proof of Friendship" is an instrumental musical composition from the Japanese version of Yu-Gi-Oh! ZEXAL. It is the 20th listed track on Yu-Gi-Oh! ZEXAL Sound Duel 4, and is 2:40 long.
Appearances[]
"Proof of Friendship" was played in the following episodes:
- Yu-Gi-Oh! ZEXAL episode 98: "Shadows End" when Yuma and Astral are about to perform a ZEXAL Morph, and become ZEXAL II.
 | This listing is currently incomplete. |