Fast, fun, but still needs a lot of improvement.
It was fun and enjoyable. The graphics were of VERY good quality for any flash game, and certainly some of the highest quality amateur graphics work I've seen. That is what got just about all the points. It was certainly fun, but it needs to be a bit harder. I'm not terribly good at flying shooters but I got daily 6th place under the name Necrophades, and over-all 9th place. Even though it has been around only a few days, I still shouldn't be that good.
What lost the most points was not originality, but music. Music was horrible and mind-numbingly repeatetive on an under 5-second loop. We need longer, more dynamic music. Sound effects were okay though.
Originality isn't something I rate on very much unless it's in a genre in great need of originality. Flying shooters are some of the oldest games out there, and the "Polarity" idea is almost as old, so just about everything you can think of has probably been done. I can't shove a blam stick in your ass for failing at something that I see as nearly impossible.
Your graphics work is amazing, and your definite strong point. Capitalize on that.