This game is really cool, I genuinely felt like a baby bird with no idea what to do at the start. Except instead of a horrible death at the hands of gravity, my only punishment was waiting 5 seconds for the hatching animation. Phew!
This game feels very polished, it really feels like it accomplished what it set out to do. Awesome job, especially for a first submission!
P.S., my brother and I have always wanted to start gamedev together, too. But I could not convince him to actually help me on my submission, lol. I think that is super cool that you guys were able to work together on this. Keep going!