No, as I haven't played in a while; I'll get back to searching, though.
EDIT:
Perhaps, just maybe, if you survive an OBSCCENE amount of rounds, then you'll attain the fourth ending? Or possibly kill the aristocrats without any upgrades?
I must admit that I haven't played in a decent while; picking up the search again could be worthwhile, though. Good luck, my fellow Salvager. May the cogs of fate's machine never hold you to your place.
