The Catwoman Bundle Pack Free with new for Batman: Arkham City has 6 achievements worth 150 gamerscore.
Retrieve your stolen goods
Steal the score of a lifetime
Drop in on an old friend
Complete all 40 of the Catwoman Riddler grid items
Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)
Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)