Stephen Totilo writes:
"At a Sony event earlier this week, I was the Joker on the PlayStation 3. This was no laughing matter.
For no cost, PS3 purchasers of next month's Batman: Arkham Asylum will be able to download some bonus challenge rooms that will let them pit the Joker against swarms of enemies. These are ethically-flipped versions of Arkham Asylum's Batman-based challenge rooms, which are brawling stages set apart from the game's campaign.
Batman beats up prison crooks. The Joker fights prison guards."