Neat idea! I found it a bit hard to tell the deformed chickens from the normal ones at first because the sprite is so small. When I eventually figured it out, I got to about 60 points before calling it quits, since I didn't feel like the difficulty was really escalating much. Might've been good to ramp up the difficulty more (higher spawn rate etc) so the game has a natural endpoint, but I can imagine you didn't have time for that. Congrats on finishing in time, and as far as I could tell, bug-free too!