I really liked the intro animation, though it seemed like suitably dramatic music would have been nice to have for that section.
The game was running a bit slow in browser, but I didn't have that problem with the download version.
The first time through the game crashed a few seconds after I used the wind arrows.
On a second attempt the game crashed when entering that same room, but before I could grab the wind arrows upgrade.
In any case, even though I couldn't finish it, I'm really impressed with what I did get to check out.