Majora's Mask Bosses  
  Odolwa

This is the very first boss Link will encounter. His name may be hard to pronounce, but he is very easy to defeat. He is found in the very first level, the Woodfall Temple. You only have four to five hearts by then so don't expect a challenge. But the one thing about this boss, is that...well, he's huge. So huge that he needs an extra large boss room.

 
Goht

This is a very different enemy from any that Link has ever faced, as you might have noticed. Goht is a giant mechanical bull, which tells you he must have a weak spot, for no machine is perfect . This is a pretty easy fight, if you know what your doing.

Gyorg

Gyorg is a mutant fish that is very powerful in his offense yet does not have a good defense mechanism. He puts up a good fight, and is quite challenging. The horn on his head is  deadly so watch out. He is very similar to the Fish Boss in Link's Awakening
Twin-Moldu

When you look at this boss, you will be reminded of Lanmolas, the sand monsters from the old Zelda games. But, this boss is quite different.. He is comprised of two creatures.  One stays in the soil, while the other flies around and attacks you. This boss is not easy. You have to use the giant mask you found at the end of the temple to defeat it. When you use the giant mask, Link will transform into a giant. You must fight Twin-Moldu as the giant or you cannot defeat him.
 
  Skull Kid

Finally you get a chance at the person who is the cause of all this chaos. You may think he is hard and the last boss, but actually he is the easiest in the game. He doesn't even deserve a description. Once you defeat him, you find out that Skull Kid himself was not to blame for all of this, in fact, he has been controlled by Majora's Mask.
Final Boss: Majora's Mask

You may be shocked to find yourself fighting a MASK!!  But, if you think about it, it makes more sense than having Ganon just appear out of nowhere to be the final boss. This mask looks like the easiest enemy in the game, but in fact, it is the hardest. It transforms into many things, such as the Majora Wizard. The mask has a wide variety of attacks. But, once you transform into Oni-Link you will have nothing to worry about. Just look at this mask for a second, really look at it......and beware the true terror of The Majora's Mask.