Saucer Captain: Earth Defender

It was a dark time when they first came, the aliens. Waves of them with fantastic flying saucers. Incredibly fast. Extremely deadly. Seemingly indestructible. Many thought this was the end for Earth and humankind. Then government scientists invented a flying saucer for Earth. Fast, maneuverable, and armed to the teeth! Many epic battles followed. The saucer fleet fought valiantly, but there were just too many alien ships. All of Earth's saucers were lost except one: Yours. You are the last Saucer Captain. The Defender of Earth! You represent the last line of defense between the Earth and alien invasion. You are Earth's last hope. If you accept the challenge, you must use your flying and fighting skills to avoid asteroids, destroy incoming waves of alien invaders, and save the Earth.