1. ODOLWA: MASKED JUNGLE WARRIOR-
Difficulty Rating: 2
Boss of Woodfall Temple, Odolwa isn't too hard, but it can get tricky because there are a lot of things going on all at the same time. When Odolwa sends out killer moths, ignore them. Just dodge Odolwa's swings with his sword and when he starts doing his stupid dance, walk up and chop him right in the knee. Repeat until he's dead.
2. GOHT: MASKED MECHANICAL MONSTER-
Difficulty Rating: 1
Boss of Snowhead Temple, Goht is a sinch. Just thaw him out with a fire arrow and he will start running around a big circular track. Do a magic Goron Roll (Don't worry, there's plenty of magic pots on the track) and crash into Goht to do damage. If you're lucky enough to get him to fall down, punch him repeatedly to do more damage. Repeat until he's dead.
3. GYORG: GARGANTUAN MASKED FISH-
Difficulty Rating: 4
Boss of Great Bay Temple, Gyorg is the hardest boss in the game. You have to shoot arrows at him from atop a platform (be careful, he will try to knock you off) and when you startle him with an arrow, go underwater with the Zora Mask and open a can on him. But, you'd better be ready to run cause when he wakes up he'll charge and eat you. Repeat until he's dead.
4. TWINMOLD: GIANT MASKED INSECT-
Difficulty Rating- 3
Boss of Stone Tower Temple, Twinmold is fairly easy if you have drank a bottle of Chateau Romani beforehand. You should already have the Giant's Mask so put it on to grow big and just chop at the two giant caterpilars' heads. Repeat until both caterpillars are dead. If you don't have plenty of magic or a Chateau Romani, you will find it almost impossible to win this match because it uses up magic to wear the Giant's Mask.
Difficulty Rating- 1-4
This boss can be either easy or hard. If you wind up getting the Fierce Diety's Mask, just shoot beams out of your sword until all three Majora Phases are dead. If you don't have the Fierce Diety's Mask, then while fighting Majora's Mask, hit it in the back with your sword 3-5 times. Then, when fighting Majora's Incarnation, just hack at it with your sword. When fighting Majora's Wrath, block its whips with your shield then fire an arrow at it. That will stun it long enough for you to kill it. Repeat until it is dead and congrats! You've just beaten Majora's Mask!