Dialogue, in the realm of Anime, Comics, Games, and Novels (ACGN), serves many pivotal roles. It’s the primary mode of communication between characters and a key instrument in immersing the reader or viewer into the story. It's kind of like the heart of a story. In dialogue, characters reveal their identities, thoughts, feelings, and relationships to others. Notably, dialogue can also be used to advance the plot and expose essential aspects of the story that images or actions cannot convey alone. Take 'Death Note,' for instance, a lot of the tension and drama are carriеd out through dialogues.
Addressing dialogue specifically in Games, it can serve as a narrative tool, allowing players to engage with the characters and their surroundings more deeply. Who can forget the iconic line in Final Fantasy VII Advent Children - 'I'm not a hero. Never was. I'm just an old killer, hired to do some wet work.' The dialogue expresses Cloud's self-image succinctly, setting the tone for his character.
Lastly, an elegantly written dialogue can also reveal the creative expertise and genius of the writer.