well, I'm not sure EXACLY all of them, but my friend has the game and he has them, so the first chance i get to get the list from him I'll put it on here.
Yes, but you will not get the fierce diety mask.
there is no adults mask but there is a fierce deity mask. You get it by playing all of the kids games on the moon. Also you need to have all the masks in the game to get it, thats very important.
Sadly, there is no 'after-game' to the Majora's Mask. Once you defeat the game, the only thing left to do is collect all of the masks if you haven't already collected them all.
Obtain all normal masks. Then, have the giants stop the moon from falling. When on the moon, some...interesting people will take your masks when you play with them. When you don't have any more masks, talk with the guy wearing the majora's mask. No one wants to play with him. When you talk with him, he'll mention how you have no more masks to play with. Then, he gives you the infamous Fierce Deity Mask.
Once you do get it from the majoras mask kid in the moon you must defeat the majoras mask and you MUST watch the credits all the way to the end once it says THE END and the sarias song stops playing reset or turn off your N64 then reopen your file you will notice the mask will say 24, now check your masks notice there right in the bottom right corner is the fierce deity's mask.
You have to complete the tasks in it.
Yes, you get them all back after you defeat Majora's Mask.
A bottle.
complete all four dungeons on the moon giving up all 26 mask. do this befor you fight majora
beat the game 2 times and erase 1 file and use it and u will come out with the deity mask, or collect every single mask and give them to the children dancing around the tree on the moon, then speak to the kid with the majoras mask. once you've completed all four dungeons you will haave the fierce deity's mask, but no other happy masks. play the song of time to get them back ^NOTE TO ALL: The beginning of this answer cannot be done. If you beat the game two times and erase file 1, it won't do squat. But the rest is legit.
It transforms link into an adult form of himself with an amazingly powerful sword. His attacks are slow but they pack a punch,kick,hadouken and a kamea-kamea-ha! He's super powerful and the mask can only be obtained by obtaining all masks in the game.He even has strange markings on his face. and has no pupils.creepy.
you get the big wallet (by getting all the gold squltillas in the ocean place) and get the all night mask and listening to her stories with the all night mask on