Fun game. I like how fast the main pig feels, it makes it really fun to just jump around and shoot.
On my first run I started with the revolver and wasn't able to get any kills. I eventually restarted, and on my second I got a bayoneted rifle, which was a lot more effective. I'd recommend making that first pig give a consistent drop of something more powerful than the first gun.
The unreal lighting is always superb, so the game looks nice as well. solid work!