Hilarious and addicting!
This was really, really good! While the enemies were quite small, they were still detailed, smoothly animated (and I love the retro pixel style). Sound effects were crispy and very satisfying (especially the heli, tank explosions).
The whole concept of a simple farmer and his sheep being under attack by such a ragtag group of attackers is hilarious, so kudos there! As well as the whole idea of that same farmer having an orbital strike sattellite, a huge rocket launcher and the lot.
The only two complaints I have about this game is perhaps that it's too easy. While the first couple of levels rely on you shooting accurately, since you have no other weapon or backup, the latter levels are mostly a slaughterfest, with the exception of those... er... enemies with.. tails? Those are quite hard to kill, even with all upgrades. Still, it was a bit too easy.
The other complaint goes hand in hand with the first one - it's too easy, meaning money's too easy to come by, so you can get all upgrades quite early on, which leaves you with a pile of money without anything to spend it on. More upgrades and weapons would be a nice addition. However, I'd be happy to have all this in a sequel.
All in all, an amazingly addicting and fun game with wonderfully smoothly animated pixel graphics and hilarious concept! I loved it!