The evil boss mentioned in the game, Adam Crowley, wasn't an actual person, but there was really a man by the name of Aleister Crowley (1875-1947). So, who was he? Aleister was dark magician, poet, author, drug addict, free mason and initiator of the free love movement of 1960's. He communicated with the devil and wrote a book called the "Book of Laws", then claimed himself a messiah and started his own religion called "Thelema".
In the German version all in-game blood was coloured black and the blood on the menu and loading screens was removed.