Saucer Invasion

The player controls a small rocket at the bottom of the screen, which can be scrolled left and right. On the top of the screen is a small alien saucer which moves horizontally at varying speeds and direction. The player's goal is to launch a missile and strike the alien vessel. The player gets a total of 15 missiles and 90 time units to try to destroy as many saucers as possible. The player's goal is to maximize score.