So, I have a 5120X1440 monitor, here's what the main menu looks like. A windowed option would be great for people like me with different aspect ratios, not everyone has the same monitor. Luckily, I have a crappy laptop as well, I tried it on that one.
Overall, it was really well polished, well executed, and fun. I didn't get very far since I am quite bad at platforming, and I found many of the rooms slow to move through. (I am a bit surprised that a chicken doesn't have the ability to glide a little.) I don't really know what would make the platforming better for me; the jump-off-a-ledge mechanic was definitely innovative, but I found it hard to pull off consistently. I probably would have gotten a lot farther if the platforming was easier, maybe with obvious bonuses just out of reach to encourage mastery.
Overall, this feels good for a complete game that someone would want to buy. Nice job with it!