This was a tough checkpoint. It took 25 minutes today and a while of dying yesterday to beat. Not sure the exact time for this checkpoint.
This game is definately getting dense with enemies and bullets and I can tell it wont be an easy victim.
This second boss was tough initially, but I was able to end the fight much quicker by keeping the front attachment on his head (which does continuous damage) while firing charge shots into his head. This killed the head quickly. For the body I immediately released the front attachment bomb , which destroys the attachment but does massive damage. This is done by pressing A+B maybe twice in a row. Thats how I did it atleast. Buttons 1 and 2. I just learned about this after looking it up online. I do not know how I did that really powerful version of the bomb with the purple field. Last time I used the bomb it did not do this. So I got lucky there. The fight can otherwise go on for a while and he has some tough shit to dodge.
I didnt use save states to practice this boss but probably should have. Everytime I died I had to repeat all thats shown here. My hands are inflamed now so I can only use the joystick in bursts and not the gamepad, which is my prefference. But the Hori Rav 4 stick is amazing so Im fine with that. I still cant get in as much gaming time until this inflammation goes down. Hands keep falling asleep, burning like hell.