Can't say I was all that impressed with the final product. While it was quite pleasing to look at (The environment shifting along the color spectrum as an indication of progress was quite nice), and the controls were nice and tight, there isn't really a good base for a game here.
There is a plot, but it's so vague and unclear that it might as well be non-existant. The only threat besides the semi-random, predictable projectiles of unexplained origin (missiles? other ships?) is a player's complete inability to move their mouse. Ammo packs are frequent enough that the environment never feels like something you need to worry about. Combine this with the slow crawl of your ship and handing players enough money to buy the best items right out of the starting gate and the result is that you never feel like you're being challenged. Consequently, there is no feeling of accomplishment for beating the game.
There are a lot of games on NG that have a lot of ambition, but so little polish that they become unplayable. You've accomplished the exact opposite here. I am disappointed in the shortcomings, but it's very apparent that you have the skill to produce something much better.