Ok first off this is only the guide for the 2nd fight with mizar(last boss) as he is the only one i had trouble with. I hear a lot of people say they had 30+ homing missile capacity when they fought him wuth juno. I looked on many sites and only found 20 capacity with the homing and 20 with the tri rockets. What u need is ur homing missiles, tri rockets, and machine gun. After the opening cutscene he will shoot asteroids, start from the left or right and basicly strafe ur way through this with the occasional jumps. Next he comes at u with his slam attack, simply stay at on end of the stage untill he comes at u and strafe to the opposite and u wont be harmed. Once he slams get a lock on his glowing lights on his back with ur homing missles. Now i waited to lock on the first time he turned around and shot at him the 2nd time he turned and found that was the best way for me to make sure i didnt waste ammo. I shot 2 rockets every time he turned away. Mind you if u shoot instantly after he turns, try to aim to the left high or right high away from him so the rocket can work its way around him. His attacks vary from his annoying lightning which has 3 speeds, fast normal and slow. Strafe and jump at the lightning with good timing to avoid these. Then his breath attack simply strafe to avoid. And his last attack is the projectile lasers he shoots, same strategy simply strafe to avoid. His attacks are all at random so keep trying till he does an easy run for you. Now i had to use 20 homing rockets and 2 lucky tri rockets to get him to the next phase. Theres a cutscene and u need to aim for his arms with ur tri rockets. Keep shooting them till they both explode. Finally his head is the last part of thus ridiculous boss. I still had enugh tri ro ckets to finish him off here. If u dont then use the machine gun to finish the job. Goodluck!