(Sorry for double post) Some tips on to defeat the final boss: Max out everything on Pulser. When the boss fires rockets, move your ship quickly in a swing or pendulum-like pattern. Do it just right and you should avoid them. When the boss does the rapid pattern of fire that fills the entire screen, find an empty gap somewhere towards the right, quickly, and be very careful. Avoiding everything else just takes practice and luck.
What this game teaches you: 1. Physics can be fun. 2. Ragdolls have blood in the shape of circles. 3. Anything, and I mean absolutely ANYTHING, if flung fast enough, can kill you.