Batman: Arkham City – Harley Quinn’s Revenge PC Cheats

Achievements

These are the Games for Windows Live achievements:
A Few New Tricks (20) - Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge
Battering Ram (10) - Shield Bash 5 different thugs
Bomb Squad (40) - Defuse all bombs in 3 minutes or less
Breaking and Entering (20) - Find a way into the secret base
Frequent Flyer (10) - Zip Kick 5 different thugs
How's It Hanging? (20) - Clean up the Dry Docks
Lost Property (20) - No crimefighter should be without this
Party's Over (50) - Destroy all Harley Balloons
Snap To It (20) - Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan
The Last Laugh (40) - The joke's on who?