Wow, I was surprised at how good this game was. I do wish it was a bit more detailed. It seemed like it was just the same thing over and over. I still liked it and would recommend it. The sounds were pretty good. I thought "Balloon Invasion" would be something nicer. Then again, it's not that violent.
I like to just see them explode. You really have to keep on firing and firing here. Even the Veteran level was too much for me. I expected more popping. It's still well done.