A game about shooting zombies with a ballista. Why not.
The game is simple, but feels complete. There's upgrade system, simple story, several types of enemies, sound and music. The UI is clear, the pictures nice.
I really liked the the small touches, like the zombies jumping at you giving you a last-minute chance to hit them, or the fact that in the tutorial level, I managed to hit a bird (completely by chance) and it actually was hit and fell down. I think I even made a dent in the ground :)
I also found the scenery in the actual levels weirdly soothing.