Warner Bros. Interactive Entertainment has announced a new update for iOS game Batman: Arkham City Lockdown. The new update includes a new level featuring Harley Quinn, as well as a Bruce Wayne skin, and new achievements, all of which are free, as well as the chance to buy the Batman, Inc. skin as an in-app purchase.

The new level expands the world of Gotham City as Batman is on a mission to track down the infamous Harley Quinn, but to get to her players must first deal with Harley’s henchmen, experiencing all-new gameplay elements, on their way to a timed showdown utilizing Batman’s Batarangs.

In the iOS-exclusive Batman: Arkham City Lockdown, the inmates are on the run and Batman has his work cut out trying to handle an army of henchmen and some of his most legendary foes. The action takes place on the rooftops and the seedy underbelly of Gotham City in a series of one-on-one battles with The Joker, Two-Face and many more, including the Batman: Arkham City Lockdown-exclusive villain, Deathstroke.

The new update is free if you already have the game, and if you don't, you can download the game for £3.49/$5.99 by clicking here: Batman Arkham City Lockdown for iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation), iPod touch (4th generation) and iPad on the iTunes App Store

Source: Warner Bros. Interactive