Music is greatly undervalued in games. When the series took this darker turn, was when I realised games could convey story just as good as, if not better than, movies. It could've been a mistake. It could've been shallow and filled with meaningless gore. But the soundtrack had the heaviness to give the whole experience an action movie feel (like 300, Gladiator and similar movies) without being so metal-driven as to scare players away. The 2 things I'll always remember is the first time the menu started up (Wow!) and the first boss fight. In my opinion no game has blended tight controls and musical theme this well.