Protect earth from gaseous beasts! Gotta love that storyline, eh? Special thanks to Waterflame and ParagonX9 for making such AWESOME music! You can read an interview with Waterflame on my site if you want to know more about him!
This game is meant to be hard, so if you can't beat it, don't feel bad. If you think it's easy, there's a hard mode to unlock after you complete normal mode. Be sure to stick around at the end for some cinematic goodies.
Kongregate added a few badges and a high score system on their site, too, if you want to try it out over there!
Also, to webmasters, if you want to host this on your site feel free, no need to ask. It'd be nice to know where it ends up though, so toss me a PM if you aren't too busy.