The Catwoman Bundle Pack Free with new for Batman: Arkham City (Xbox 360) has 6 achievements worth 150 gamerscore.
Complete all 40 of the Catwoman Riddler grid items
Drop in on an old friend
Steal the score of a lifetime
Retrieve your stolen goods
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)