This new section of the game places Batman just inside Arkham mansion--the original residence of the asylum's founder, Amadeus Arkham--as he attempts to find notes about Dr. Young's experiments, but it appears that the Joker is one step ahead of him. Just inside the main foyer, the Joker's goons are already trashing the place looking for the very same notes. This presents an opportunity to become a little more familiar with Batman's attack strategy because this particular group doesn't have any weapons. By grappling up toward one of the several gargoyles surrounding the entry way, you can get a bird's-eye view of where enemies are located without notifying them of your arrival. Once there, you can then figure out how to pick off enemies. Because these guys don't pose any particular threat, though, you can just as easily swoop down and perform a glide kick to one enemy and then take care of the rest the old-fashioned way.

The very next room presents a similar scenario for Batman, but it contains much stronger enemies that are equipped with shotguns and assault rifles. Running in with fists pumping won't do you any good, so like before, you have to grapple up toward one of the gargoyles and watch how enemies move through the room. If you spot one that eventually gets isolated from the others (or at the very least, you see an opportunity to take an enemy out without the others spotting you), you can glide down, take him out, and then grapple back toward the ceiling. This alerts the other bad guys in the room, causing them to huddle around their fallen comrade, which forces you to wait until they separate again. If you happen to get spotted, you can always try to take out a few of the thugs, but the best option is to seek safety at higher altitudes and continue grappling amongst the gargoyles until they lose sight of you.