... go to this room. Kill everyone. Go to the next room. Kill everyone. Go to the next room. Kill everyone.
Yea, that's the easiest way to do it, really..
This was crap. Pure, utter, unadulterated crap. Terrible puzzles, boring scenery, lame dialogue, and repetitive nonsense. Why didn't they just show me 12 backgrounds 4 each times and get it over with?
It's a bit easy. Got all the achievements first time apart from money hoarding. Anyone else think the assault rifle is actually the best gun in the game? :P