Somebody told me Master Quest loads a video for the ending scene instead of just the cutscene. I don't know if that's true but it certainly does do something different if cutscene 2 in Gerudo Valley is loaded; this just makes the game treat it as another cutscene.
If anybody finds anything else, feel free to post it here.
Last Edit: Aug 20, 2011 9:42:20 GMT -5 by deathbasket
In order: Allows one to move Link anywhere (D-pad to move left/right/forward/backward, A and B to move down/up), allows one to move the camera anywhere, create cutscenes, stuff like that (...complicated controls) allows one to change which items one has, how many hearts total and currently, how many rupees, etc.