Poor eyes, especially with those strong colours eh..
Hehehe, Krogans are beast. A bit rude though, but well.
That's in their nature. The women are even thougher than the males ^^
But you did try to beat the invincables right? Those after the big worm boss?
Those are annoying though, especially Master meegee (if that's spelled right)
He has this annoying shield you'll need to wield down before his health or you'll get nothing, and you can only damage it with elemental effects - or well, that's the only way I've been able to damage it...
The other guy is pretty tame, hyperius I think, though his rockets are annoying. Keeping a good distance and then shooting the hell outta him works fine.
Also, I'm lvl 50 now... and I've tried that infinite keys thing. Works like a charm ^^