Extremity taken to ridiculous levels?? maybe for you young padawan.
Sorry if you're going to tell me 5 obscure bands that are more extreme but less artistically valid. Not interested.
Within the metal genre, particularly an "extreme" genre such as black metal, Conqueror is among the top tier of pure violent reckless abandon. One can tell just by listening to the recording a few times how intensely hard these musicians are playing. Very demanding material from a technical aspect, but besides that each song exhibits almost completely non cyclical structures, apart from perhaps a few instances where lyrics are repeated. They are not of the first tier of innovation like a Burzum or a Nihilist, but they definitely dragged black metal in another direction that took people a few years to understand. By using a similar technique used in "Transylvanian Hunger" and coupling that with Blasphemy's chaos and some slight grindcore influence, Conqueror succeeds in forging their own sound from which only Blasphemy even came close before them.
I'll admit it all sounded like noise to me the first few listens; it was the pure insanity of it that kept me curious about it. Eventually, as with all great albums, I learned to decipher it and now it is among my favorite black metal albums.
In terms of extremity, it is not the most extreme album, but that's like saying a 95 on a test score is not good because it is not a 98.