First try, and up at 2,296. :) I was expecting something gruelingly difficult from the 'Flappy' in the title, but I'm happy to see it wasn't just the regular Flappy Bird clone, but one with a more polished control scheme, and progressive difficulty. The dual-action thing with both shooting and jumping at the same time is nice too, though after a while you realize you just need to focus on jumping, and the shooting mostly takes care of itself if you click like crazy.
Anyway, I like the idea, and it was fun to play, too! Easy to get into, and easy to give another go once you fail. Nice work!