Below you can find a guide to the many masks Link can possibly aquire during his adventures. Both a description on what they do and how to get them are provided.
Once you learn the Song of Healing from the Happy Mask Salesman you will be able to undo the Skull Kid’s spell that has you trapped in the form of a Deku Scrub. In doing so you will also gain the Deku Mask, which allows you to take the form of the Deku Scrub whenever you please.
As a Deku, Link will be able to use the launch flowers scattered around Termina to fly short distances, and attack by either spinning or spitting bubbles. Deku Link is quite vulnerable to fire attacks and falling from great heights, so it would be wise to avoid both while wearing this mask.
Follow the Ghost of Darmani to the Goron alter by using the Lens of Truth and play the Song of Healing to ease his suffering. In return you will gain the Goron Mask that will allow you to take the form of a Goron.
As Goron Link you will be table to travel quite quickly by curling into a ball and rolling around, as well as attack your enemies with mighty fire punches. Like Deku Link, Goron Link is quite weak when it comes to heights, as well as a complete mess when it comes to water.
Mikau the Zora can be found on the shores of the Great Bay, seriously injured. Play the Song of Healing for him and you’ll get the Zora Mask, allowing Link to take the form of a Zora.
Zora Link is obviously a swift and powerful swimmer, as well as able to walk along the bottom of the sea. Zora Link can also create an electric barrier that surrounds him, damaging any enemies that come into contact with it. He can also use his Zora fins like boomerangs for ranged attacks. You might, however, want to be wary of Fire and Ice attacks when in Zora form.
Great Fairy Mask
Don Gero’s Mask
You’ll notice a Goron in the Mountain Village area wearing this mask. To get it from him first head into the Goron City. Light all the torches in there, then destroy all the barrels spinning around the chandelier. You will be rewarded with the Sirloin Rock for your troubles. Bring this to the Goron wearing the mask and he’ll give it to in exchange for the rock. This mask allows you speak to the frogs located throughout Termina.
Mask of Scents
Enter the tunnel to the left of the Deku Palace after completing the Woodfall Temple. You’ll meet the Deku Butler there, who will guide you through the maze-like caves (to make it easier try wearing the Bunny Hood). Make it to the end and get this mask, which allows you to smell mushrooms when they are close.
Head to the Chicken Shack at Romani Ranch and speak with the man you find there. Put on the Bremen Mask and collect all the small chickens, marching around with them until they grow to full size. Complete this task and the Bunny Hood is yours. This is probably one of the most useful masks, as it increases Link’s speed significantly.
Mask of Truth
To get this mask complete the first Gold Skulltula dungeon. As for its function, anyone who has played Ocarina of Time will be familiar with it. Wear this mask when speaking to the one-eyed statues and you’ll get some interesting information. In addition, you’ll also be able to hear the thoughts of animals when you speak to them.
Stop the thief from robbing the Old Lady in North Clock Town at midnight on the first night and you’ll be rewarded with the Blast Mask. An excellent substitute if you happen to be short on bombs, it does have the serious drawback of costing Link quite a few hearts. If you happen to have your shield raised while you detonate it, however, you’ll manage to avoid taking damage.
To get this mask, head to the small village right before the Stone Tower in Ikana Canyon. Head into the house shaped like a music box and into the basement of that house. You’ll find a deformed man/mummy down there. Play the Song of Healing and you will receive the mask. This makes it so Gibdos and ReDeads ignore you.
This useful mask can be gained by first going to the entrance to Ikana Canyon. You’ll see a circle of stones. Use the Lens of Truth and you’ll see an invisible guard. Give him a Red Potion and he’ll give you this mask in return. This mask makes you blend into the background, making you invisible to many enemies.
Circus Leader’s Mask
All Night Mask
Fierce Deity Mask
Wearing this mask transforms Link into the Fierce Deity (or “Oni-Link” in Japanese; roughly “Evil Link”). While undeniably cool, the Fierce Deity Mask can only be worn during boss battles. Getting it requires Link to have collected all the other masks in the game, then completing the mini-dungeon on the Moon before facing Majora.