I've gotten completely stuck in MP, I've tried about 15 times to get past the Mama Sheegoth, but I absolutely cannot kill it. I've gotten to know how she moves so well, that I can dance around the room for days without getting hurt, but I can't bring her down!! I read some FAQs that basically say to fire missiles after she breathes, or shoots ice, while she rests...they say it should take ~20 missiles. I've followed these instructions to the "T" - only I end up using 40+ missiles but she won't die! WTF am I doing wrong??