Thank you for the feedback! The pig AI was a bit complex to code, but to be honest I had way more issues with simpler things 😅
About your suggestions, the very next thing in my ToDo list was adding the timer, around 1 minute for each level. Ironically, I ran out of time to implement it. Adding more time for each pig caught is a good idea maybe for later levels, with less time at the start.
Adding a chicken that would chase and peck the farmer was another thing farther down the ToDo list, it even made it to the title screen 😄. Another obstacle that's in the game sprites are patches of muddy soil which would have made it harder to stop or start running. Having some rocks or fences making paths would be great and easier to code too. I can see them used mainly near the corners where pigs usually get trapped, as coming from one side would make it easier for them to escape.