Have you ever wanted to experience the events of Ocarina of Time with the masks from its sequel? To face off Ganondorf as the Fierce Deity, or explore places like the Fire and Water Temples as Goron and Zora Link?
Well, if so, you’re in luck! A modder by the name of Aegiker has now ported all 4 transformation masks from The Legend of Zelda: Majora’s Mask to The Legend of Zelda: Ocarina of Time. Here’s a video showing the mod in action:

Plus, the download link for the mod in question:
Transformation Masks in OoT v1.0 Download
As you can tell, there’s not much to say here other than it works perfectly. The Deku, Goron, Zora and Fierce Deity forms have all the attacks and abilities they did in Majora’s Mask, and they translate over to Ocarina of Time’s world exactly as you’d expect they would. Heck, you can even use the Fierce Deity Mask while fishing, just like you could in the 3DS version of Majora’s Mask.
So, yeah, give it a go if you’re a big Majora’s Mask fan and wanted to see those masks in Ocarina of Time as well. It’s a really fun way to replay an already amazing game, and worth it for anyone who’s a big fan of that era in general.
Source:
Majora’s Mask Transformation Masks in Ocarina of Time v1.0 RELEASE (YouTube)