Absolute requirements:
-instrumental (vocalists are fine, intelligible English is not)
-dark
General qualities necessary:
-very dark
-very depressing
-filled with despair
-makes you want to kill yourself
-needs to have a bit of weight behind it, can't be entirely softly played piano (might except). This is for an action RPG like Demon's Souls or Dark Souls.
ALTERNATIVELY/ALSO NEEDED:
-extremely freaky, in the sense that something is going wrong
-to elaborate, I need something that can be played over you watching your own father kill your mother. Or, something that can be played over you watching yourself kill your girlfriend/boyfriend while blinded by anger/rage.
-harsh sounding
-hectic
I don't really care too much about genre this time, as long as it fits the bill. Speed isn't too much of an issue - it can be fast or slow paced. Fast paced /might/ be preferable.
examples:
Close, but no cigar. It's dark, but a bit too epic and large in scale. It's not sadistic-father-raping-screaming-daughter enough.
This is /basically/ perfect. If I can't find anything, this is my failsafe. (The thing is, I need two tracks like this. This can serve as one of them, but I need a second in a similar vein to this one.)
I don't really have any other examples, because I know next to nothing that satisfies my needs.
BTW:
This is for a last and/or second-last boss.