Well, the main story of Batman Arkham City can be completed within a certain number of hours. It typically ranges from 10 - 15 hours depending on your playstyle. Batman has to navigate through Arkham City which is full of danger. His mission is to deal with the various super - villains who are causing mayhem. For example, The Joker has a devious plan that Batman must thwart, and all of these events are what make up the engaging story that unfolds over those hours.
Batman Arkham Knight isn't based on any particular comic. Instead, it pulls concepts and themes from a variety of Batman comic runs to shape its story and gameplay. It's a creative blend of different aspects of the Batman comic universe.
Completing the hard story in Batman Arkham City isn't easy. You should start by familiarizing yourself with the layout of Arkham City. This will help you plan your routes during missions. During combat, keep an eye on the enemy's health bars and special abilities. Some enemies may be immune to certain attacks. In the exploration part, look for Riddler trophies and other collectibles as they can sometimes unlock useful upgrades or additional content. The story missions themselves are filled with challenges, so make sure to save your progress regularly.
The key features include a rich and immersive Gotham City setting. There are complex and engaging storylines that often involve Batman's battles against his iconic villains. Also, the game mechanics, like the combat system which is fluid and allows for various combat maneuvers, are a big part of it.
Batman is the main character, of course. He is the Dark Knight who protects Gotham City. Then there are his villains like The Joker, who is always causing chaos and trouble for Batman. Catwoman also plays an important role, with her own motives and skills that sometimes cross paths with Batman's.