Had a blast playing all the way through. The character is super cute and fun to move around. I found the glide mechanic worked better if you sort of flapped your way through instead of gliding.
Discovering the mechanic on level 6 was very satisfying. Level 8 was unforgiving and might have been much harder than any other part of the game.
I often found myself not being able to see the danger in front of me due to camera position. The mushroom in level 9 is a good example.
Really great game! Nice work. This one really excelled at level design.