It has a great ending and the game itself is a pretty fun platformer, great work!
My favorite mechanic was launching the eggs to hit buttons during jumps, I genuinely thought that was an excellent mechanics. I also solidly enjoyed the level design, the levels all felt fair, and challenging without being too complex or convoluted.
FEEDBACK: If I am not mistaken you used a capsule collision shape for the chicken and while that is fine, it does mean you tend to slide off edges off platforms, maybe you could do a square collision shape that only activates when a ray(or series of rays is colliding with the floor, so that it doesn't impede your jumping). Nothing major, just some thoughts.
I really enjoyed this one, and showed it to my brother. Thanks for sharing.