Well, there's a fanfic where Harley tries to escape Arkham City and Batman is the one who has to stop her. But instead of the usual chase, they end up having some deep conversations about her relationship with the Joker. It really delves into their characters and the dark and gritty world of Arkham City. It's called 'Harley's Escape and the Dark Knight'. It's an interesting read as it shows a different side of both characters.
One popular theme is Harley's redemption. Many fanfictions explore how the environment of Arkham City could be a catalyst for Harley to break away from the Joker's influence. For example, in some stories, Batman helps her see the error of her ways.
One possible aspect of a Batman and Harley fanfic in the Arkham universe could be their complex relationship. Batman is always trying to uphold justice, while Harley is often caught between her love for the Joker and her own sense of right and wrong. In a fanfic, the author might explore how Batman could potentially save Harley from her self - destructive path. For example, Batman could use his detective skills to show Harley the truth about the Joker's abuse towards her.
One of the best moments could be when Batman manages to outwit Harley in a battle of wits. He uses his knowledge of her psychology to predict her moves. For instance, if Harley tries to set a trap using her knowledge of Arkham's layout, Batman quickly figures it out and turns the tables on her.
It enhances the series by adding more content. Simple as that. More stories mean more gameplay time and more things to discover about the Arkham world.
One common theme is Harley Quinn's relationship with the Joker. It could be about her loyalty to him, or her struggle to break free from his influence in the context of Arkham City. Another theme is her interactions with Batman. Maybe she's trying to outwit him or form an unexpected alliance.
The Harley Quinn DLC story in Batman Arkham City often focuses on Harley's own adventures and misadventures within Arkham City. It shows her loyalty to the Joker and her attempts to carry out his plans in her own chaotic way.
Well, a lot of fanfictions focus on the emotional side of their relationship. In Arkham City, they are both in a high - stress situation. A fanfiction might show how Catwoman is the only one who can reach Batman on an emotional level when he's deep in the fight against the criminals in Arkham City. She might be able to get him to open up about his fears and doubts, which is something he doesn't do with anyone else.
You can start by looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms have a wide variety of fanfictions related to Batman Arkham City and Harley Quinn. Just search for the relevant tags and you'll be presented with numerous options.