Initially Hideo Kojima had thought of Hans Zimmer to compose the soundtrack of Metal Gear Solid 2, but the maestro cost far too much.
In the early stages of the development of Metal Gear Solid 2: Sons of Liberty , Hideo Kojima and producer Rika Muranaka wanted Hans Zimmer to compose the game’s soundtrack, but the maestro cost a little too much and was not satisfied with the amount proposed to him.
Muranaka told it in an interview with Game Developer, in which she talked about her work on the soundtrack of Metal Gear Solid 2: “We went to Media Ventures (now known as Remote Control Productions), which is Hans Zimmer’s studio. We originally wanted to get Hans Zimmer, but he was like ‘No, I can’t do it for that kind of money’–he’s so expensive, it’s ridiculous.”
With Zimmer out of the way, Kojima asked Muranaka to contact the English composer Harry Gregson-Williams , who had worked with Zimmer. He was an emerging composer, but he had already made himself known with the film Enemy of the State.
Gregson-Williams willingly accepted, without knowing that he would collaborate with Kojima again in other Metal Gear and that his career as a videogame composer would extend to other series, such as the Call of Duty one. According to his words, before Metal Gear Solid 2, he had never thought of working in the world of video games. At first, he really didn’t know what he had to do. Kojima emailed him asking him for 30 seconds for a “sneaky” section and Gregson-Williams had to get an explanation of the term because he didn’t understand what it was referring to. After all, he had started his career to become a composer of film soundtracks, where he usually had in front of the part of the film for which he had to compose the soundtrack.
Eventually the soundtrack for Metal Gear Solid 2 was a joint effort between Gregson-Williams, Muranaka and an internal team at Konami (most notably Norihiko Hibino). Who knows what it would have been like if Zimmer had agreed to compose it.