I really loved the concept, even if I ended up getting really sad whenever a sheep ended up getting hurt :x
The controls were good, but I would make the blur an optional element. Like Stusse below, I'm pretty sensitive to that sort of thing.
With that said, the mechanics here are really fun! My main issue really comes down to what everyone else has mentioned the whole "sheep getting stuck on walls" thing.
Wanted to highlight the mecha-wolf design; loved it to death.
Had a good time with this one! Good job!