How I love simple games!
It is definitely a challenge to find an answer to "how do I make a simple game that's fun in a short amount of time" question, and I think this is a good answer!
The jitteriness of the gameplay was a little off-putting, I would have been able to enjoy it a lot more if the snek and chickens and such moved with no interruptions, but i'm sure you could make the 1-unit movement work too with some small refinements.
Overall very cute and enjoyable game!