Masks

In order from top left to bottom right:

• Post Hat - Go through the events mentioned in chapter 21 to get it.
• Staying Up Late Face (Yofukashi Otsura) - Stop the burgler at 0:00 on day 1, then buy it for 500 rupees on day 3 from the Mani shop.
• Explosion Face (Bakuretsu Otsura) - Stop the burgler at 0:00 on day 1 by slashing him with your sword. You can blow yourself up with it.
• Rock Monster Face (Ishi Coro Otsura) - Use the Lens of Truth by the Ikana graveyad and give some medicine to the injured soldier you see.
• Big Fiary Mask (Daiyousei no Kamen) - Return the lone fairy found in Clock Town at night to the spring in Clock Town. This will cause faries in dungeons to fly towards Link.
• Deku Nuts' Mask (Deku Nuts no Kamen) - You automatically get it when you return to the mask collector on day 1 for the second time. Changes Link into Deku Link, one of the 3 transformation masks.
• Keaton's Face (Kiiton no Otsura) - Go through the events in chapter 21 to get it. You can use the Keaton's Face to talk to the grass that runs away from you in Clock Town and Milk Road.
• Buruu Face (Buruu Tsura) - Talk to the old man with the music box in Clock Town at night. He is found by the stream.
• Bunny Hood (Usagi Zukin) - Round up the chicks on day 3 in the shed in the back of the Romani Ranch using the Buruu Face.
• Ribbit's Face (Gero no Otsura) - Give the meat found in the Goron Village to the Goron with the frog on it's head. It will let you talk to frogs.
• Mister Pig's Face (Buusan no Otsura) - Chase the Deku Prime Minister through the mini mase on the side of the Deku Nuts Kingdom after rescuing the Deku princess. Will allow you to find mushrooms.
• Goron's Mask (Goron no Kamen) - Use the Lens of Truth outside the cave where you got it and follow the ghostly Goron. Climb up the wall when you get to it using the Lens still, then talk to him in the cave and play the Song of Healing. It will allow you to transform into Goron Link.
• Romani's Face (Romanii no Otsura) - Complete the poe sidequests on the Romani Ranch on day 1 and 2. It can be used to get into the Milk Bar.
• Chairman Face (Zachou Otsura) - Play the songs under the light in the Milk Bar for the man who is shaped like an egg.
• Cafe Face (Cafe Otsura) - Given to you by the fat lady in one of the buildings on the east side of town.
• Loving Face (Meoto no Tsura) - Go through the events in chapter 21 to get it.
• Truth Face (Makoto no Otsura) - Find and destroy the first 30 golden spiders. It will allow you to talk to animals and gossip stones.
• Zora's Mask (Zora no Kamen) - Push the beached Zora over to land, then talk to him and play the Song of Healing for him. It will allow you to transform into Zora Link.
• Kamaro's Mask (Kamaro no Otsura) - Play the Song of healing for the guy doing the snake dance on the mushroom structures by Clock Town.
• Mummy's Face (Gibudo no Otsura) - Play Song of Healing for the mummy in the closet of the musical house (see chapter 17).
• Garo's Face (Garo no Otsura) - Defeat the milk-selling guy in a horse race by riding into his ranch on Milk Road with Epona.
• Captain's Hat (Taichou no Boushi) - Defeat the big skeleton in the graveyard and open the chest on the roof. Will let you communicate with skeletons.
• Giant's Mask (Kyojin no Kamen) - Find it in the room before the boss of dungeon 4. Use it to fight the bosses (Twin Mold).
• Adult Link Mask - Complete all the mini dungeons before the final battle (see chapter 22 for details). You will need all 20 of the other regular masks (not including the Deku Nuts Mask, Goron Mask, and Zora Mask).