Two weeks following the events of Batman: Arkham City, several GCPD officers suddenly go missing. The culprit seems to be Harley Quinn, having escaped custody and undergone extreme mental stress following her recent loss. She has now taken over the industrial district of the old Arkham City site, which Batman infiltrates and ultimately gets himself captured so Robin will come to his rescue, and together, they can stop Harley and save the cops before the night is over.
Arkham has moved
Did You Know?
When you go to Two Face's courthouse and you enter the back way; you can go down to the cell next to the Calendar Man's cell. When you're in that cell turn on detective mode, look up (make sure you are under them), and punch. When you do that they somehow notice you and run through the door and come to fight you. See more
When Batman activates the secret panel to enter the Chamber of the Demon, he deduces that a sword is required to open the door. But in the assembled footage previously shown, the assassin does not use her sword at all. See more
[Easter egg, over credits
Shhhhh, there there...
Hush, little baby, don't say a word / Momma's gonna kill for you the whole damn world.
Finding the positive early pregnancy test next to Harley Quinn's costume unlocks an easter egg where Harley sings a rather chilling version of "Hush Little Baby" over the final seconds of the credits. See more
Version of Gotham Tonight
Only You (And You Alone)
Performed by Mark Hamill
Written by Buck Ram
Published by SCREEN GEMS-EMI MUSIC INC. (BMI) in the world excluding the United States, and TRO - Hollis Music, Inc. (BMI) See more