1) The opening sounds establish a battlefield setting with burning sounds, breaking glass, and spent rounds clattering, alluding to a fire/flame-based character. Wooden doors being broken creates the image of a small wooden village or town.
2) The mood music has a slow beat and low pitch, creating anxiety and fear, while hissing sounds add to the sense of fear of the unknown. After the characters speak, the surreal baby-esque sounds and music contradict their descriptions, changing the mood.
3) The narrative from the characters shows they fear and refuse to acknowledge the Pyro, seeing it as inhuman and imagining dreams of chronic cruelty, showing their discomfort around it.