I agree with axel 360. I beat Hyperious, Master G, & Pyro Pete (w/o valves) by myself and no "bee" shield. I used a level 50 siren and adjusted skill tree for each. It wasn't easy, but doable. I approach all bosses mini or otherwise w/a stragegy that's needed to defeat them. Allot of "gamers" seem to want easy. What's the fun in that?