Batman Arkham Origins: Locate Firefly's bombs

Remain in the maintenance room and go towards the Southern elevator shaft. Select the Cryptographic Sequencer from the inventory and use it on the control panel to start a more demanding hacking mini-game, and to determine the correct password from among several available combinations (the screenshot).

Since there is no elevator here, you will have to do with Batman's gadgets and skills. Start by using the hook to reach the ledge above. Shimmy to the ledge's other end, and select from the inventory the claw. You need to use it to rip off the grate of the ventilation shaft. Walk through the tunnel, take the ladder and approach the generator, which you need to activate, using the shock gloves.

Turn to face the elevator shaft and start using the glue grenades, which will result in sealing the three pipes that you can see in the distance and which leak steam. After you are done with that, jump onto the ledge with the sealed pipes and go right. Use the hook to make it onto the balcony above, run up and jump. Grab onto the interactive ledge and shimmy to the right.

Climb only after you are next to the next ledge. Look up and aim the hook at another interactive point. After you make it onto the next platform, locate the ladder, thanks to which you will be able to get to the very top of this location. You can now wake the door to the Boiler Room Maintenance Corridor. Use the hook to walk past the locked gate and then use the claw to unlock the venting shaft. The corridor will take you to the Boiler Room, Where you find the first one of the Firefly's four bombs.

As you have probably figured out, before you can focus on disarming the bomb, it will turn out to be necessary to eliminate all of the bandits gathered around it. The most convenient way of moving around are the vantage points but, you need to watch out for the statues around the main furnace because they are mounted with explosives (example in the screenshot).

You can, of course avoid the statues with bombs and it is especially recommendable, while playing the initial part of this scene, i.e. when the enemies do not yet realize Batman's presence and aren't yet trying to locate him. It is also worth reminding at this point that a good way to avoid the threat connected with the statues, is to extend ropes using the grapple. This is so, because attaching a rope to the statue with the C4 on it, prevents premature detonation of the charge.

When it comes to the enemies, I recommend that you, in the first place, get the one with the disrupting device. This may, however, prove to be very difficult, because the enemy with the antenna on his back, should be patrolling the boiler room's lower level, which means that you will have to break a serious sweat to eliminate him. You should also watch your step around the enemies with heat detectors and escape from the statues that they are currently scanning, or remain motionless if you come equipped with an appropriate upgrade.

You can eliminate successive bandits in any order you wish. The easiest way, of course, is to perform the inverted takedowns or hoist them using the grapple. You can also focus on quiet takedowns, using the explosive gel on the weakened surfaces or executing quiet surprise attacks from venting shafts. Continue eliminating enemies until there is only one enemy left in the boiler room. He should give up automatically and you need to interrogate him.
- Batman: Arkham Origins Game Guide
- Batman Arkham Origins: Game Guide
- Batman Arkham Origins: Main storyline
- Batman Arkham Origins: Locate Black Mask
- Batman Arkham Origins: Track down Commissioner Loeb
- Batman Arkham Origins: Gain access to the Execution Chamber
- Batman Arkham Origins: Pursue Black Mask
- Batman Arkham Origins: Defeat Killer Croc
- Batman Arkham Origins: Use the batcomputer to analyze the memory card
- Batman Arkham Origins: Interrogate Penguin's arms dealer
- Batman Arkham Origins: Deactivate the jamming signal
- Batman Arkham Origins: Interrogate Penguin's arms dealer #2
- Batman Arkham Origins: Deactivate the jamming signal #2
- Batman Arkham Origins: Collect first SIM Card to triangulate Penguin's position
- Batman Arkham Origins: Collect second SIM Card to triangulate Penguin's position
- Batman Arkham Origins: Gain access to the Final Offer
- Batman Arkham Origins: Track down the Penguin
- Batman Arkham Origins: Defeat Electrocutioner
- Batman Arkham Origins: Track down the Penguin #2
- Batman Arkham Origins: Gain access to Penguin's office - Upper Deck
- Batman Arkham Origins: Gain access to Penguin's office - Theatre
- Batman Arkham Origins: Defeat Deathstroke
- Batman Arkham Origins: Solve the crime scene inside Lacey Towers
- Batman Arkham Origins: Acquire the concussion detonator at the Batcave
- Batman Arkham Origins: Gain access to the GCPD via the rooftop
- Batman Arkham Origins: Access the GCPD servers - side rooms
- Batman Arkham Origins: Access the GCPD servers - bullpen
- Batman Arkham Origins: Acquire the disruptor at the evidence locker
- Batman Arkham Origins: Access the GCPD servers - returning to the server room
- Batman Arkham Origins: Escape the GCPD
- Batman Arkham Origins: Access the sewers beneath GCPD
- Batman Arkham Origins: Uplink the National Criminal Database to the batcomputer
- Batman Arkham Origins: Access the Gotham Merchants Bank
- Batman Arkham Origins: Locate Black Mask #2
- Batman Arkham Origins: Apprehend the Joker
- Batman Arkham Origins: Investigate the steel mill - reaching the mill
- Batman Arkham Origins: Investigate the steel mill - exploring the mill
- Batman Arkham Origins: Investigate the steel mill - drug lab
- Batman Arkham Origins: Scan a sample of Copperhead's poison
- Batman Arkham Origins: Reach the antidote drop point
- Batman Arkham Origins: Defeat Copperhead
- Batman Arkham Origins: Acquire Electrocutioner's electromagnetic signature
- Batman Arkham Origins: Track the electromagnetic signature
- Batman Arkham Origins: Gain access to the Gotham City Royal Hotel
- Batman Arkham Origins: Gain access to the security room
- Batman Arkham Origins: Gain access to the penthouse - East tower
- Batman Arkham Origins: Gain access to the penthouse - West tower
- Batman Arkham Origins: Gain access to the penthouse - upper floors
- Batman Arkham Origins: Gain access to the penthouse - swimming pool
- Batman Arkham Origins: Defeat Bane
- Batman Arkham Origins: Meeting with a psychologist - Joker
- Batman Arkham Origins: Acquire the glue grenade at the workbench
- Batman Arkham Origins: Scan the corpse in the GCPD morgue
- Batman Arkham Origins: Locate the tracker placed on Bane
- Batman Arkham Origins: Return to the Batcave
- Batman Arkham Origins: Apprehend Firefly at Pioneers Bridge
- Batman Arkham Origins: Warn Gordon about the bombs
- Batman Arkham Origins: Locate Firefly's bombs
- Batman Arkham Origins: Disarm the bomb in the boiler room
- Batman Arkham Origins: Disarm the bomb in the train station
- Batman Arkham Origins: Disarm the bomb at the south pillar
- Batman Arkham Origins: Disarm the bomb at the north pillar
- Batman Arkham Origins: Defeat Firefly
- Batman Arkham Origins: Locate Alfred
- Batman Arkham Origins: Rescue Alfred
- Batman Arkham Origins: Stop the Joker
- Batman Arkham Origins: Gain access to Blackgate Prison via the sewers
- Batman Arkham Origins: Stop the Joker #2 - nexus
- Batman Arkham Origins: Stop the Joker #2 - cell block B
- Batman Arkham Origins: Defeat Bane #2
- Batman Arkham Origins: Stop the Joker #3
- Batman Arkham Origins: Main storyline
- Batman Arkham Origins: Game Guide
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