Planet Invader, defend earth

Take control of orbital ship to shoot down aliens and asteroids attacking planet earth.
Challenge yourself to survive the longest period possible while shooting down swarms of aliens ships and asteroids.
Collect power ups to assist you in your quest.

How to play:
The game is very easy to learn, yet very challenging.
You control a ship that is able to rotate around earth's orbit, rotate toward incoming enemy and shoot them down to blow them up.
shoot down power ups to spawn a defense barrier around the planet or boost up you fire rate.
watch out of large alien's mother ships, they could prove hard to destroy.