Rolling girl bird...
I don't know if it was intentional, but it is very close to being a rage-inducing game, reminding of good'ol Flappy Bird times.
Also, when you get unlucky, you can spend a lot of time without being able to control the movement, like when you jump like a ball and your wings just happen to not connect with the ground because of your spin frequency. Or maybe it's just a skill issue on my part :D