http://tcrf.net/The_Legend_of_Zelda:_Maj...iry_scenes
In Majora's Mask, there is some data in the game, that shows something quite odd.
http://www.youtube.com/watch?feature=pla...jSCi4HitQU
http://www.youtube.com/watch?feature=pla...5mivgwKdXw
From the looks of it, when you would go to the Great Fairy and ask for a new ability it would seem that originally the Great Fairy would have actually told the player, how to do it, but as well as showing Link how to do it.
The top one is supposedly just him training to double his health, similar to taking half the damage in Ocarina of Time.
The bottom one is The Great Fairy teaching him how to do the Spin Attack.
Both seem incomplete, due to the fact they looked creepy, or were just not needed.