This game obviously brings up a lot of emotion in people, which is good because this is a topic that deserves some emotion.
The art style was perfect for the game, as was the music.
To anyone that finds this game cruel: they do worse things to chickens, which I am sure you eat all of the time without even thinking about it. Plus, as others have pointed out, we play games like CoD which have us killing hundreds of humans. And you'd be hard-pressed to find an arcade that doesn't have a deer hunting game.
"What's that on the kitchen floor? A cockroach?!"
*SMASH*
(that's a little more violent than punching)