Batman: Arkham Knight: Stop Harley Quinn from taking the Joker infected (continued)
On this page of our game guide to Batman: Arkham Knight you can find a description which explains how to stop Herley Quinn from taking the Joker infected. Batman has to use a voice synthesizer and defeat a group of enemies.

Leave the Clock Tower and head over to Panessa Studios. Again you have to get to the rooftop and approach the elevator exit. This is where 9 bandits await. Two of them are equipped with firearms, so they should be your primary target. Later in combat prevent other enemies from picking up the weapons.
After the fight try interacting with the voice scanner to find out that Harley Quinn has reprogrammed it. Wait until Batman equips Voice Synthesizer and loads a sound recording. You have to move the vertical and horizontal slides to get the perfect imitation of Harley's voice. The correct position of both slides is shown in the above picture.

After preparing the voice sample aim the Voice Synthesizer at the scanner and use it. The game will not let you enter the building right away, as more enemies will come from the inside and set up two defense turrets by the entrance. Initially, the game lets you test the Voice Synthesizer while sneaking. Selecting this gadget lets you pick an opponent and give him an order using the voice of Harley Quinn. It is an excellent method for luring out single enemies from groups, so to deal with them secretly.
Neutralize enemies one by one, while keeping low profile. The last human target should be the bandit with a minigun. When you attack him (e.g. from above) remember to initially start a series of strikes and block his counter attacks. At the end eliminate the two turrets standing by the building entrance. Hack one of them using the Remote Hacking Device, and then quickly destroy the one still active. Then hide in the vent shaft, wait until the reactivated turret turns the other way and sabotage it too.

Again approach the voice scanner. Enter the elevator and take a long ride to the quarantine zone in the underground complex of the film studio. Right after leaving the elevator you will encounter for the first time a bandit with a shield. When fighting this type of enemy you have to perform an Aerial Attack. Start by stunning the enemy with your cape, then bend the stick toward him (or hold the correct directional button) and double click the jump key/button.
After the fight select the Voice Synthesizer from the inventory and use it on the nearby panel. You will have to take on more thugs, including the newly met shielded opponents. A good news is that in this battle you are aided by Robin, so switch between the two heroes and remember to use Team Attacks. When you win the fight, interrogate one of the bandits and use the computer.
- Batman: Arkham Knight Game Guide & Walkthrough
- Batman Arkham Knight: Walkthrough
- Batman Arkham Knight: Main story
- Batman: Arkham Knight: Prologue
- Batman: Arkham Knight: Rescue the missing police officer
- Batman: Arkham Knight: Interrogate the driver of the military vehicle
- Batman: Arkham Knight: Investigate Scarecrow's safehouse
- Batman: Arkham Knight: Destroy enemy tanks
- Batman: Arkham Knight: Run Battle Mode weapon energy system diagnostics
- Batman: Arkham Knight: Destroy the squadron of drone tanks
- Batman: Arkham Knight: Take Ivy to the GCPD lockup
- Batman: Arkham Knight: Meet Oracle at the Clock Tower
- Batman: Arkham Knight: Use Panessa Studio antenna
- Batman: Arkham Knight: Use the antenna at the Falcone Shipping Yard
- Batman: Arkham Knight: Rendezvous with Gordon at the ACE Chemicals Plant
- Batman: Arkham Knight: Rescue the missing ACE Chemicals workers
- Batman: Arkham Knight: Open the main ACE Chemicals gate
- Batman: Arkham Knight: Rescue the missing ACE Chemicals workers (continued)
- Batman: Arkham Knight: Destroy Arkham Knight's flying machine
- Batman: Arkham Knight: Stop Scarecrow from blowing up ACE Chemicals
- Batman: Arkham Knight: Flashback - Jim Gordon
- Batman: Arkham Knight: Escape ACE Chemicals
- Batman: Arkham Knight: Meet Gordon outside GCPD Lockup
- Batman: Arkham Knight: Escort Gordon to the Oracle's Watch Tower
- Batman: Arkham Knight: Take out the militia forces guarding the Clock Tower
- Batman: Arkham Knight: Investigate the Clock Tower for clues to help locate Oracle
- Batman: Arkham Knight: Track the Arkham Knight's vehicle using the Forensics Scanner
- Batman: Arkham Knight: Regain control of Mercy Bridge
- Batman: Arkham Knight: Head to Riddler's orphanage to rescue Catwoman
- Batman: Arkham Knight: Track the Arkham Knight's vehicle using the Forensics Scanner (continued)
- Batman: Arkham Knight: Investigate the crash site
- Batman: Arkham Knight: Analyze the Arkham Knight's encryption protocols
- Batman: Arkham Knight: Infiltrate the tunnel network under Miagani Island
- Batman: Arkham Knight: Neutralize the Brutes
- Batman: Arkham Knight: Stop the enemy APC and interrogate the driver
- Batman: Arkham Knight: Rendezvous with Nightwing to get intel on Penguin's whereabouts
- Batman: Arkham Knight: Follow the weapons truck to locate Penguin's hideout
- Batman: Arkham Knight: Access the weapons cache and interrogate Penguin
- Batman: Arkham Knight: Destroy Penguin's weapon cache
- Batman: Arkham Knight: Escape Penguin's ambush
- Batman: Arkham Knight: Find a way to infiltrate the Stagg Enterprises airships
- Batman: Arkham Knight: Infiltrate the first airship
- Batman: Arkham Knight: Destroy the weapon turrets on the second airship
- Batman: Arkham Knight: Infiltrate the second airship
- Batman: Arkham Knight: Find Scarecrow onboard the second airship
- Batman: Arkham Knight: Rescue Oracle from Scarecrow's hideout
- Batman: Arkham Knight: Meet with Ivy at the GCPD Lockup
- Batman: Arkham Knight: Scan the Cobra tank to discover its weakness
- Batman: Arkham Knight: Destroy the Cobra tank
- Batman: Arkham Knight: Take Ivy to the Botanical Gardens
- Batman: Arkham Knight: Use the Batmobile's sonar to locate Ivy's second plant
- Batman: Arkham Knight: Protect Poison Ivy's plant from enemy military forces
- Batman: Arkham Knight: Analyze the Arkham Knight's forces in Panessa Studios
- Batman: Arkham Knight: Glide onto the relay drone and examine it
- Batman: Arkham Knight: Destroy the Arkham Knight's radar network
- Batman: Arkham Knight: Take out the long range missile launcher
- Batman: Arkham Knight: Disable the missile launcher's protective shields
- Batman: Arkham Knight: Return to the Clock Tower to review the Batwing scans
- Batman: Arkham Knight: Stop Harley Quinn from taking the Joker infected
- Batman: Arkham Knight: Apprehend Christina Bell in sound stage B
- Batman: Arkham Knight: Apprehend Albert King in sound stage A
- Batman: Arkham Knight: Apprehend Johnny Charisma in sound stage C
- Batman: Arkham Knight: Stop Harley Quinn from taking the Joker infected (continued)
- Batman: Arkham Knight: Investigate the unusual seismic activity on Miagani Island
- Batman: Arkham Knight: Stop the enemies attacking the Botanical Gardens
- Batman: Arkham Knight: Interrogate Simon Stagg to find a way to defeat the Cloudburst Tank
- Batman: Arkham Knight: Use the Nimbus Power Cell to repair the Batmobile
- Batman: Arkham Knight: Locate and release Ivy's plant on the Founders' Island
- Batman: Arkham Knight: Gain access to the subway network
- Batman: Arkham Knight: Locate and release Ivy's plant on the Founders' Island (continued)
- Batman: Arkham Knight: Protect Poison Ivy and her plants
- Batman: Arkham Knight: Destroy the Cloudburst tank controlled by Arkham Knight
- Batman: Arkham Knight: Investigate the reason for losing contact with Poison Ivy
- Batman: Arkham Knight: Meet with communications specialist in the GCPD
- Batman: Arkham Knight: Find commissioner Gordon in the shopping mall
- Batman: Arkham Knight: Damage the drilling machine controlled by Arkham Knight
- Batman: Arkham Knight: Find commissioner Gordon in the shopping mall (continued)
- Batman: Arkham Knight: Defeat Arkham Knight
- Batman: Arkham Knight: Capture the Scarecrow
- Batman: Arkham Knight: Protect the Oracle
- Batman: Arkham Knight: Stop Scarecrow's men from destroying Oracle's servers
- Batman: Arkham Knight: Defend the Gotham City Police Department
- Batman: Arkham Knight: Check Scarecrow's activity in Panessa Studios
- Batman: Arkham Knight: Surrender to Scarecrow
- Batman: Arkham Knight: Epilogue - Joker
- Batman: Arkham Knight: Additional endings - Knightfall Protocol
- Batman Arkham Knight: Main story
- Batman Arkham Knight: Walkthrough
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