In the early 90s I got my first Mac. There was an addictive game I played on it, although simple by today's standards. It showed a two-dimensional depiction of a city, with incoming missiles. The point was to take out the missiles before they destroyed a building. As the game progressed more and more missiles descended from the sky, making it harder to keep up. Whenever one got past you, there was a flash as it destroyed its target. But what was the name of that game??? Driving me nuts!