Hitsuji Yaai!

In Hey Sheep! you control a shepherd boy who must gather his sheep into the fencing before nightfall so he can go on a date with a girl. You can catch the sheep by running into them and then once you drag them to the top of the screen you can close the gate by pressing up on the underside of it and going in the direction to shut it. In later levels a wolves appear which will open the gate when the pass by it allowing the sheep a chance to escape. If you fail to get all the sheep locked away safely by nightfall the game is over.