Some things that I found playing was that it was difficult to see the player you are and the cows. The farm house is nice but perhaps make it smaller and off to one side to make it easier to see. In the same vain the graphic buttons have the text to the exact size, I think the buttons should be a little bit bigger then the text. When a round starts sometimes it will end while a ufo is still around and before being shoot down. On one round the cow spawned more on the right then center and a ufo came in and got it pretty quick. The buying of a stable to then buy a cow seems a bit much, maybe have each stable allow for 5 cows per stable instead.