very cute game, nice work folks! :)
A few thoughts as I was playing: I think being able to sprint as much as you want feels a bit overpowered, so perhaps a drawback (besides perhaps stamina bar approach) could be something like.... sometimes if you sprint too far away, the kittens will start losing you / wandering off? or maybe the "old hag" puts out small bowls of food to try and lure those stragglers and make it easier for her to catch them! :O