Wanted to get good at the game, as it looks nice and could see it being a lot of fun if you overcame the obstacle and could soar expertly up through the air, but unfortunately I ultimately gave up. Perhaps a visual gauge for when to press Space leaving the raindrop, for those of us who are a bit timing challenged? ;)
Edit: I initially couldn't download the Windows version, as you suggested, because I was using Firefox. Could download with Chrome. In case anyone else ran into that issue.
Using the Windows version I got a bit higher with the smoother framerate, but still not great at timing the Space button. Could probably get there with enough practice.