A flash game that can suck me away for a whole day... that's amazing. It struck home that not all games have to have super polished game play if the story is a great caliber. IMHO this game is on par with some of the middle budget games for consoles, go look at Disgaea Infinite for psp. That game is 100% story with less game play than this game.
Sector GYN-5943 the last stage in the green zone if you find you're struggling for levels and can manage Max damage and Max targets for the lightning gun with a few levels in reduced shield dmg. Just sit on the left hand of the screen right below there the brown guys come from the top of the screen and just below where the brown guys from the left come(bout 1/3rd from the bottom of the screen) you can sit there and hardly take damage and rack up about 5 mil points before finishing the stage, enough to max out from level 55 or so.