I didn't realize until I watched the documentary how many fundamental rules of game-making the game breaks. The development team just kinda made up all their own rules as they went along. Here's a link to the video I watched, btw.
https://www.youtube.com/watch?v=LbY0mBXKKT0
The Skyward Sword segment is about 2 minutes in. They don't talk about anything spoilery until about 10 minutes in, and they give you a massive buffer to leave the video before they do.
