I like this idea, the concept is funny and the gameplay was pretty fun. I did run into a problem where I was able to get stuck in the air by pushing against a rock, and then I was not only able to get on top of the trees but also couldn't kill anything. This could be fixed by either adding gravity or just locking the player to the ground. A minor suggestion I think could be neat is adding farmers which kill you if they see you eat another sheep. Good job overall!