It's Halloween night and Arkham Asylum is on full lockdown!! The joker has escaped and released all of Arkham's infamous residents! Batman is halfway across the world assisting the Justic League and the GCPD is outgunned and outmatched. Bottom Line: HELP ISN'T COMING.  The inmates are running the Asylum now...do you dare enter the craziest place on earth on the scariest night of the year?