Moon Intruders 1.1
(Edit)This is the illigitiment sequel to Space Invaders.
Just when you thought you pushed back those pesky invaders in the 1980's, a recent scan has found them trying to establish a lunar foothold for their next invasion.
Fortunately, Earth was able to install a missle defence system on the surface before they could start landing.
Control the missile Defender and blast the Moon Intruders, and prevent them from reaching the surface!
