Leonard Rosenman scored the film this time and gave it a distinct musical style.
- The Main Theme
helps build excitement, indicating that Robocop is back to protect the innocent. Multiple variants of this play throughout the film. - Happier Days has a sense of sadness, suitable for Alex Murphy still trying to reconnect with his lost family.
- Creating The Monster has a chilling slasher film feel, fitting for Cain's transformation into a Full-Conversion Cyborg.
- Robo I vs Robo II plays during the battle between RoboCop and RoboCain and suits the mood very well. A quiet riff from "Main Theme" plays when Cain is defeated at last.
