I like the idea behind it. The art is simple but it's really cute. The sounds are fine.
The movement feels exactly like flying, not extremely sharp, with a little delay of the input. The gameplay feels really slow, even for a game where you just chill and move from time to time, for me personally was a bit annoying how long the coins and boxes take to spawn. Also since the camera is moving the opposite way, there were times i couldn't get the coins because they were behind the camera.
However, you did great, the base is there, I'm sure if you continue working on the game after the jam, it could become a complete masterpiece! Good job so far!