Penitentiary Mansion--Part 2

Apprehend Harley Quinn

Upon reentering the Main Cell Block, Harley Quinn will send electricity coursing through the ground. Get off the floor--fast--by grappling to the platform overhead. Take down Quinn's thugs (make sure to focus on the one with the gun first) to send her fleeing.

Proceed down the connected hallway and turn left first to find an Interview Tape then use the Sequencer on the nearby security box to deactivate the electrified floor. Now return to the platform and drop to the lower level and continue through the door along the western wall, leading to another cell-block, then proceed up the staircase on the opposite side into the Guard Room.

Inside the Guard Room, proceed through the door to find Harley Quinn torturing a couple of cops. Both have been strung up a pool of electrified water, and it's up to you to save them. Use the Sequencer on the control panel just left of Harley Quinn's window to cut off the electricity in the first of two pools of water. Now you have to hurry and deactive a second Security Panel in the pool of water next to the Quinn's control room, before she permanently reactivates the electricity in the third pool, beneath the second cop. With both panels disabled, cut both cops loose with a quick Batarang to their respective ropes. Now you only have 30 seconds to escape the room before the bomb goes off, so again use the Sequencer on the Security Panel by the door you entered, then head on through to safety!

After fleeing the room, venture into the nearby control room (where Quinn was) to find an Interview Tape, then exit back into the Main Cell Block, where Quinn will unlock a door on the opposite side you can continue through, leading to Controlled Access.

You'll find that the only exit out of the Control Room is blocked, but worry not, for you can rip the vent grate off overhead revealing a hole you can grapple through. Just be ready to take down a goon who drops down. After pulling yourself up, grab the Interview Tape from the table then use the Sequencer on the nearby security panel to disable the electric fence below, allowing you into Extreme Incarceration, where you'll be entered into a difficult brawl.

So here's the deal: There are three main platforms, and they'll alternatively become electrified in a counter-clockwise one at a time. You'll want to avoid the electrified platform at all times unless you like having your health dwindled away. All the while, you'll be battling large groups of henchmen, many of whom are equipped with bats and stun rods. Anyway, as mentioned, your primary concern should be to avoid being electrocuted, and the best way to do this is to head to each platform just after it stops being electrified--this should give you a good 20-30 seconds before you'll have to move again. In addition, if you know your platform's about to become electrified, try keeping your opponents there by stunning them (such as with your cape, or Batarangs), causing them to be taken out by the electricity. As for the enemies themselves, make liberal use of your stun cape, allowing you to perform ground takedowns unfettered, As the battle wages on, more guards will come armed--it's best to try and take on the ones equipped with stun rods first (remember to roll over them when they flash red, then attack from behind), otherwise you'll find yourself taking damage when you try to attack them as part of a group.