having trouble with 'big boss"

[bombastinator]

my weapons dont seem to have noticable effect on him.
hes not difficult to approach.
it is possible to stand behind on the arm that holds him without being attacked.
I did find a disc or something in a slot behind him
I resorted to my shame, to looking at various guides for a system to turn him off. i did find one that mentioned pulling a lever.
i CANNOT find such a lever though

[SexyPanther]

Directly in front of you when you enter the room with the boss inside, you hit a switch behind a blast screen on the floor. Then you move forward and do the same thing again. Then interact with two wires (?) on the left and right of this particular console on the floor. Then there are a few objects you have to shoot.

At this point, there is a time delay before the boss explodes (dialogue leading up to it). Here's the thing, saving manually at the very start of the time delay, and then reloading that save, can cause a glitch (at least it did for me). Essentially, upon loading that manual save the boss bar will still display but in its shrunk state (it expands for console you interact with), the turrets will remain active, and the boss can't be killed. My only remedy was to load up the autosave and enter the boss battle from the beginning to overcome this. My theory is that the coded trigger for the boss being destroyed doesn't register if you load a save between the start and end of the timer for the boss explosion.

[bombastinator]

derp in the center of the room. follow the markers *facpalm*

[Carl Weezer]

Originally posted by bombastinator:

derp in the center of the room. follow the markers *facpalm*

There are no markers. Rude.