Moving Through Arkham City As The Dark Knight

"Arkham City is set in a sprawling, abandoned district of Gotham. This is reflected in its size and scale. This new environment is about four to five times bigger than Arkham Island," says, Batman: Arkham City's director, Sefton Hill and how you move through it is up to you.

When asked whether a larger environment will cause the game to "lose impact", Hill responded with, "Our objective has never been just to make a bigger game. We're pushing ourselves to make a better game".

With this bigger game comes new ways to maneuver around the environment. "We wanted to equip Batman with an expanded range of navigation abilities to allow the player traverse the city with more style and speed than ever before," said Green. This means gliding, zip-lining, and diving. The zip-line can even be used as a tightrope. This all allows the player to move about without ever having to walk on the streets.

Green finished off by saying, "Batman can freely glide across the city scanning the streets below and break into a sheer vertical dive at anytime. This allows the player to take gangs of thugs by surprise by slamming them with a flying kick or choke hold at high-speed. Similarly, we felt that it was important to build on the gadgets and equipment that Batman had at the end of the first game as well as stay true to the continuing nature of the storyline. When the player visits Arkham City they won't be starting from scratch."

What's behind Batman: Arkham City's walls? via CVG