Thank you so much for the detailed review. Most don't take the time to go so in-depth, and its very appreciated!
A very good point on the input on PC, something I never even thought of. It will have to be addressed, especially in a timing game like this.
Interestingly, there actually is an ambient sound throughout the levels (and it is a wind howl! :) ). There seems to be an issue with it playing consistently on some browser iterations, I've noticed this in other projects as well.
I love your observation on the balloon, your choice of the word "odd" to describe it fits in exactly with the title and theme of the game!
Glad you enjoyed it, and thanks again for the feedback!