SPOILER
I like the way the birds fly away when you go too high, and you think "Should I go back down and catch some more birds?" and then you think "Nah, I want to see what else I can find if I keep going up" and you KNOW you're most likely going to burn but you still do it because you want to SEE it yourself. It kinda made me feel like Icarus himself. I don't know if that's what you were planning when you desinged the game. Probably yes, and you lied about the "no hidden metaphors" part. Well, it's not actually "hidden", and it isn't an actual metaphor either, but it does have a meaning, which seems to be a very unusual thing for a flashgame lately. Plus, I love Greek mythology.
In short, I was impressed. Very nice game, short and meaningful. 5 minutes well spent.
Thank you :)