Ok I'm stuck in Dark Mine in the room where theres a little rock formation & a dark gem in a cage on top. Theres also two or three robots with machine guns that keep shooting at you. I can't beat them & I can't get to the dark gem & I can't get out of the area because there's no way back up beyond the room with the fall away floor. So I need to know how do you beat the robots with the machine guns & get the dark gem & also there is a light gem in the room just before that. It has gas vents & a guy that shoots you as you cross a catwalk. There's no way back & no way up to where the light gem is. So I'm truly stuck. Help please? Thanks!