First off, the scenario as a scenario sucked. No offense to the creator, but much more effort needed to be put into this. First off, let me begin with the Zelda Story. While not a big fan, I know that the story is a long one. A very, very long one (and if done tactically, "The Ocarina of Time" and the second one that came out for N64 can be can be made into one campaign). This scenario didn't even roughly cover the story, it was a bunch of randomly placed fight scenes that were far too far apart from each other.
Playability: Fine, there were absolutely no bugs. Most of the triggers were unlock gate or display instructions triggers, but there were still no bugs (a nice change). But the concept behind it was so weak, that a 2 is the most it can get.
Balance: Other than standing still, there is no way to lose. At all. The monks, while I'm at that, could be closer to the middle, just for the sake of not walking so much.
Creativity: None. At all. Not even the story was original. It was a cheap version of Zelda.
Map Design: Disappointing. You could have at least put more effort into the map (i.e. eye candy and the such).
story/instructions: The story, as mentioned, is not even original, which makes the fact that the scenario is so simple even worse. Instructions were neither in it, nor were they necessary. The dialogue took away all guessing.
Overall: Nothing in this scenario caugh my attention. There were no puzzles (a very, very important component of all Zelda games) and no surprises or the such. The concept is very good. Develop this into a multiple scenario campaign, each one in... say, a different temple or so, or just describing his journey, and make it more challenging, and this could turn into something very good. It has massive potential.