If so, try this out! Please post if you successfully use this code so I know it worked, went to good use, people don't keep trying to use a redeemed code and so I can close this thread, thanks.

Go to Gothamcityimpostors.com
Click "sign up for beta"
Create/sign into WBID Account
Complete registration process
--this code gives you a chance to join the Gotham City Impostors Beta andfree Arkham City-themed content.

HFEPLQLNDYMLNMAMWFXPAD9F4

Enjoy