Protect the Solar System.
You are the pilot of a prototype ship. Your mission of testing evolves rapidly toward protecting the solar system from an invasion. Do you have what it takes to protect the Solar System?
-Multiple levels to perfect your skills, with many more coming with each release.
-Improve your ship as your enemies become more agressive. 6 categories of upgrades with each many different upgrades.
-Infinite mode to test your skills, how long will you last?