I tried the game and it was really interesting! The flap mechanic is interesting, but VERY difficult to work with.
I got completely stuck on the second level and I don't know if I'm just not understanding something or if it's that difficult on purpose. If so, the difficulty curve is just really steep, making the game hard to get into, even though the main mechanic is interesting.
There is also a lot of RNG involved as, when you start the level, the player falls into the starting area and rotates slightly. This means that you can end up facing a random direction unless you start flapping immediately, which is really uncontrollable with how fast it is.
I hope my review was helpful and I wish you luck for the game jam. :)