Sky Shield

Sky Shield is a missile-defence game in the classic arcade style. Missiles streak down from the top of the screen, each one heading for one of your four cities. You defend them from a single launcher in the middle of the ground.

Click or tap a point in the sky and an interceptor flies there and bursts. The burst swells and fades over about a second, destroying any missile it touches, so the trick is to aim ahead of a missile and let it fly into the blast; one well-placed burst can take out two. You can have up to four interceptors and bursts in the air at a time. Missiles come faster and more often as the attack goes on. A city that is hit is gone for good, and the game ends when the last one falls.

Destroy missiles for 10 points each. The game ends when all four cities have been hit.