Hey~
This game is sweet! I love the concept and the progression system, gives me serious learn to fly vibes.
One suggestion I have is that I didn't really understand the point of bottles off of the initial descriptions - I thought they might give me some sort of boost but now I understand they act as a sort of shield. I think maybe more text or something could clarify this, but I might just have misunderstood.
I thought the theme was really cool, I was immediately hooked by the title and thought it was really well executed. :)