Can I Get Away With Just One More Majora's Mask Post?

The game is geared toward collecting masks. Some masks are given to you, some masks you get by healing the heart of somebody in pain, in which case their pain which is like a curse is lifted from them and the pain becomes trapped in a mask. So you're helping people and trying to make them happy. Nice!
Some masks will actually transform you into a different creature.
Ok, so like your first mask. Somebody turns you into a tree-shrub creature.

You manage to lift the spell, keep the mask, and use it to turn into a shrub creature at will. In the course of the game you meet the shrub race and the shrub king and shrub royal family. Neat.

The next transformation mask is slightly different. You meet the ghost of a goron warrior. He died before he could do something for his people so he's suffering. You heal his suffering, it becomes a mask, you put it on and become this:

But the weird thing is that when you put on your mask, people you talk to call you by the dear warrior's name. Not only that but some are surprised to see you, "Darmani? You're alive?!" Except he's not. You're just wearing his mask. People buried this guy! I thought it was a little creepy to be running around giving people false hope that this guy had come back to life.

The next transformation mask you obtain by talking to a wounded guitarist. He's like a fish person. He's troubled because he couldn't help his band and save his people too. So you heal his pain, it becomes a mask and he dies in your arms. When you put on the fish person mask, you turn into this:

And this is where it starts to get even creepier. Nobody knows the guitarist died. No one saw it happen but you. And when you put on the mask, everyone calls you by his name. You even play with his bandmates in a rehearsal. They just go on with life thinking you're him. What happens at the end of the game when you just leave this land and don't come back? Link never reveals to anyone that he's not Mikau.

I thought that was it, but I found something else in the credits. Back at the beginning of the game when you were the tree-shrub creature, you met the shrub-king's butler. After talking to him he tells you that you remind him of his son. It's a very downplayed line. It just gets completely glossed over, but this was the first indication. As the credits roll you see a scene in a forest and this is what you see:

The figure on the left is a shriveled tree with a sad face. The figure in the middle with the green danish-like things on his head is the king's butler. And he's crying. He's visiting his son's grave. His son died and you were wearing his son.

Fun game, Nintendo. I loved walking around wearing dead people's faces.