Original sentence: A demo for the game will be available to download worldwide from Xbox Live Marketplace, PlayStation Network, and Games for Windows on Friday, August 7th.It has been hinted that certain villains might be playable at some point in the game although this may be as an unlockable element after completing the game
Edited sentence: A demo for the game will be available to download in Europe on Thursday, August 6th from PlayStaion Network and worldwide from Xbox Live Marketplace, PlayStation Network, and Games for Windows on Friday, August 7th.It has been revealed that in the PlayStation 3 version of the game,you can play as the Joker in 8 exclusive challenge maps