I play solo since I don't have any friends to play with. When I played it on the PS3 if I died I would find the boss had recovered their health meaning at times I would have to use trickery and exploits to make fights easier (ie. shooting at cars with a rocket launcher before going over a ramp, hiding under shelter and sniping Mothrak, getting one of Nine-Toes Skags to just stand there and yell and not come after me, using the Scorpio as a decoy).
One of my pet peeves with the final boss was how it's "stages" would reveal the more damage you did to it, getting it down to 3/4's it had all it's tentacles out but then I died, I came back and lo and behold it had all of them and had full health so I was being attacked even more than I was the first time.
Now I just got this on PC, likewise I don't have any friends and my PC doesn't connect to the internet so unless I go to a lan party (which is like never) I'll be going though this on my own. So far employing the same tricks as my play though on PS3 is working (glitching Nine-toes Skags, sniping all the skags around Scar) but I am wondering; is there a way to prevent Bosses recovering all their health when I die?
NOTE: I mainly ask for PC since I did get the game for PC as well for the sake of keeping my dad off my PS3