In its own unique way, this game is simply perfect. The most surprising aspect of this game is that it's a story driven vertical shooter. Furthermore, this game has the best story of any shooter game I have ever played. By the end of the game, I really feel that my actions have made an enormous difference. The gameplay is also good, even if it is a little bit limited. Personally, I wolud have it if the game had multiple weapon types( such as a scattering shot or a laser that pierces through multiple enemy ships). However, that's just a personal preference of mine, and I think that it shouldn't affect the game's score. The upgrade system was a very nice touch, as it helped keep the game interesting. The graphics are good. They make the game look like a retro space shooter, and for that, I like them. Lastly, the music is very good. Overall, this is a an original game that is perfect for what it is. Congratulations!