"Perfect Dark Zero" is also one of the first games that uses Havok's HydraCore physics engine, which was specifically designed for multi-core video game systems like the Xbox 360. The game's renderer engine employs more advanced graphic technologies than was possible in the previous console generation, including parallax mapping, ambient occlusion, subsurface scattering, and high dynamic range. The soundtrack of the game was primarily composed by David Clynick, who worked with Grant Kirkhope on the original Nintendo 64 game's score. New York based group MorissonPoe contributed two songs to the score, while DJs Kepi and Kat composed the game's nightclub theme.