Hey:) I have already checked your ME3 walkthrough. Batman AC is not a hard game but there are stuff I have forgotten since I last played Batman AA.
Batman Arkham City Walkthrough
Holy toledo, Batman! Our Batman Arkham City Walkthrough will provide info about gadgets, a storyline guide, and locations of secrets.
Penguin's Jammers
The door to the Penguin's lair is wide open. Unfortunately, within the first foyer is a gate powered by a Wayne security terminal. Under normal circumstances you could simply hack through this, but Penguin has jammed all hacking devices. Head back outside and sidetrack yourself by questing for the three jamming terminals. Our video clip shows locations and how to best the thugs.

The first of these is in a small nook directly north of the museum. What's nice here is none of these guards are armed at first, making them quick pickings. Watch out though, there is a bin full of machineguns that these guards can grab. If this happens keep an eye on them with detective mode. Guns in a fistfight is simply too unbalanced to leave unattended, so take them down quickly.

A short ways north east of here is the second jammer. All of these guards are packing heat, so you'll need to be stealthily. Pick each of them off one by one, but watch out for the heartbeat monitors. Each time you take out a thug, the others will quickly run to his locations. Either get away quick or use this time to set up a sneaky trap.

The last jammer is deep in the Akrham City subway. Once again stealth is great here. Use the rafters and train cars to stay hidden; dash quickly and escape if you're caught, and of course use the heart beat monitors to scare and entrap the Penguin's men.
With all three jammers taken down, you can safely waltz into Penguin's base of operations.




