As ashamed as I am about admitting it, I totally panicked when I first ran into them. Giant tentacled blobs with too many eyes and Naija's strange "beware, there is some sort of boss" gasp were just too much, so I was a bit too panicky and unthinking about shooting and simply spammed it. And got hit by itself and its offsprings. It took me about an hour and several deaths to figure out that my strategy needed some rethinking. So I asked my fiancé, who - unlike myself - is pretty experienced in gaming, for a tip, and he had it right... They really are more difficult than they look, I think *g*