Fierce Deity Mask

Fierce Deity mask is a powerful god mask that appeared in The Legend of Zelda: Majora's Mask, when Link give all non-transformation masks to four children in mask, the guy who wears Majora's Mask give Link the Fierce Deity mask when he wants to play "good guys against the bad guys". Link wears his mask, he turned into a vengeful god Fierce Deity who ressembles Adult Link from Ocarina of Time. Nobuyuki Hiyama who voiced Adult Link from Ocarina of Time has voiced the Fierce Deity, so Adult Link and Fierce Deity could be the same voice.