Eidos Interactive just released the box art for all three versions of Batman: Arkham Asylum and besides being ogle-worthy, the pictures also impart a valuable piece of information: the game's ESRB rating.

Though Batman is "the Dark Knight" and all, he'll be keeping things T-rated this time around. I'm not saying it's a bad thing - I mean last summer's Batman film was only PG13 and it still managed to be appropriately dark and violent. However, those of you hoping he'd be running around cleaving limbs off with a Bat-Saw will have to settle for disappointment. Look on the bright side, though - at least his Bat-Suit doesn't have nipples.

Arkham Asylum will be released in Summer 2009 for the PS3, PC, and Xbox 360.