Too easy
I really liked this game. The only problem was that it was insanely easy. I made it through the whole game with the first ship. Also i figured out how you can pretty much instantly get to the final boss. All you have to do is fly around in circles until a large amount of enemies get concentrated in the middle of the screen and then turn and fly right into them guns blazing but if there are too many enemies the computer lags like crazy. The coolest part of this little trick is that it creates a huge shockwave if you have the second to last ship which shoots its pixels in all directions.