A neat little game. I wasn't able to kill all the UFOs and I never got an end screen. So I don't know if there's another level after or what exactly happens but that one UFO that speed across horizontally was too quick for me. I always missed it by a hair.
The music is good and I like the fact that you can shoot the buildings. It just felt a bit boring towards the end when I had just that one stupid UFO mocking me.