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Old World Blues (quest)

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For the main article of the Old World Blues add-on, see Old World Blues (add-on).
Old World Blues
Fallout-new-vegase28099-old-world-blues (1)
Outsmarted
locationForbidden Zone
given byDr. Klein
rewardCompleting the add-on
Big Mountain Transportalponder!
base idxx002fcc
Make up your mind
requirementsMade up your mind... about your brain.
gamerscore20
trophy typeBronze
Outsmarted
requirementsComplete Old World Blues
gamerscore35
trophy typeGold
 
Gametitle-FNV OWB
Gametitle-FNV OWB

Old World Blues is the final main quest in the Fallout: New Vegas add-on, Old World Blues.

After completing this quest, the player will earn the Make up Your Mind achievement/trophy and the Outsmarted achievement/trophy.

Quick walkthrough

  1. Talk to Dr. Klein.
  2. Enter the Forbidden Zone Dome entrance.
  3. Defeat or disable the X-42 giant robo-scorpion.
  4. Enter Mobius' lair and reason with or kill him.
  5. Reclaim or reason with your brain.
  6. Reason with or defeat the Think Tank.

Detailed walkthrough

The player can begin the quest by speaking to Dr. Klein, where the good doctor will tell them that it's time to go to the Forbidden Zone and get their brain back. He also asks the player to deal with Dr. Mobius. Optional speech checks are available:

The player should begin by traveling to the Forbidden Zone. Once there, the player will encounter several robo-scorpions surrounding the entrance. After dealing with them and entering the zone itself, Dr. Mobius will release his most powerful guardian, the X-42 giant robo-scorpion.

  • The player can fight it.
    • Enter the room farther to the right with stairs that lead to a terminal, which gives the player the option of activating the X-42 backup generator, overloading it and causing some damage.
    • Enter the room to the left and use the terminal to access turret controls (Average lock) to turn them upon the X-42 giant robo-scorpion. Although they will not be sufficient to destroy the X-42, they cause it a lot of damage.
  • Activating the protectrons in the room to the right from the dome's entrance will distract the robot long enough to get to the shutdown terminal or other terminals.
  • Enter the balcony room on the far left side of the zone from the entrance, that contains a computer terminal (Very Hard lock). If hacked, it gives the option to permanently disable the X-42 giant robo-scorpion. Access to this room is via the stairs on the far left side of the room. If the player lacks the necessary Science skill the password to the computer is on a holotape to the right of the rightmost protectron bay.

Alternatively, if the player has the Robotics Expert perk, they can sneak up and disable it, but the X-42 giant robo-scorpion will restart itself after a set amount of time has passed. However, if they do not have the required Science level to hack the terminals, nor the Robotics Expert perk, an LAER is available behind a force field, just past the exit balcony. This LAER is in good condition, and it can be sufficient to take out the X-42 giant robo-scorpion.

After defeating it, the player must confront Dr. Mobius. To do so, take the stairs to the left of the entrance and make their way to the door on the right. There the player will meet Dr. Mobius, who, strangely enough, is not hostile.

Here the player has two choices: reason with him or kill him.

Option: Reason with Dr. Mobius

If they choose the former, he will direct the player to their brain and ask to convince it to rejoin the player. Optional speech checks are available with Mobius:

Option: Fight Mobius

If the player chooses to fight Mobius, he will release 5 robo-scorpions MK4B. The player will need to defeat Mobius and the robo-scorpions to continue. The player will receive 1066 exp for defeating Mobius.

Once Dr. Mobius is dealt with, the player must then speak to their brain, and convince it to join them again. Having high Medicine, Speech or Science will give them a slight advantage and make the dialogue much easier. The use of the unique dialogue provided by Confirmed Bachelor/Cherchez La Femme/Black Widow will result in a somewhat humorous, if mortified response from the brain that doesn't help the player's case. Talking to the brain and convincing it to help in the final quest stage will grant the Make up Your Mind achievement/trophy. Optional speech checks:

  • Speech 75 (x2). Choosing to have the brain reinserted into the players body will result in losing the Brainless perk, and gaining the Big Brained perk, which yields +10% DT.

After acquiring the brain, the player needs to speak to Dr. Mobius again. He'll tell them more about what the Think Tank is all about and suggests dealing with them, instead of him. The choice is up to the player.

After making the choice, the player needs to return to The Think Tank. There they have the option of using the Sink's Auto-Doc to retrieve their original heart and spine.

  • Choosing to replace the player's original heart results in the loss of the Heartless perk, and the gain of the Cardiac Arrest "perk" (healing chems are 50% more effective)
  • Choosing to replace the player's original spine results in the loss of the Spineless perk, and the gain of the Reinforced Spine "perk" (STR and DT bonuses doubled (+2))
  • (If the player decides to leave their heart and spine, they can be replaced at any time the player so chooses). Then the player must choose to deal with the 5 members of the Think Tank though violence or reason.

Option: Reason with the Think Tank

For those wishing to reason, the speech checks are:

Option: Fight with the Think Tank

The player must destroy all five members of the Think Tank.

After completing the quest, and watching the ending slide show, the player is given the Big Mountain Transportalponder!. This will allow one to return to the Big MT via The Sink balcony at any time, or from Big MT to the Mojave Drive-in, although using it is limited to locations within the Mojave Wasteland, and cannot be used in areas such as The Strip or while in combat. Furthermore, upon completion, all active personalities in The Sink will cheer for the Courier's victory, with a particularly drawn-out and rambling congratulations from Blind Diode Jefferson.

After the slide show ends, (and the player convinced the brain to come back), the brain will be located in the far left room, (where the heart and spine have been stored). The player will then be able to re-attach and detach his/her brain later at any time or leave it in the storage facility. Doing so will change brain, heart, and spine-related perks.

Journal entries

StageStatusDescription
10 Return to the Think Tank and let Dr. Klein know you have completed your tasks.
20 Travel to the Forbidden Zone Dome.
25 Disable or destroy the X-42 giant robo-scorpion.
30 Confront Dr. Mobius at the Forbidden Zone Dome.
35 (Optional) Satisfy Dr. Mobius's curiosity about what it's like to be killed.
40 Retrieve your brain from the Forbidden Zone.
50 Confront Dr. Klein at the Think Tank and end your imprisonment at Big MT.
51 (Optional) Retrieve the Sink Auto-Doc's personality holotape from Y-17 to restore the Auto-Doc's functionality.
52 (Optional) Use the Sink Auto-Doc to retrieve your original heart.
53 (Optional) Use the Sink Auto-Doc to retrieve your original spine.
60 Kill Dr. Klein and the other members of the Think Tank.
70Quest finishedIcon checkLeave the Think Tank.

¹ Optional depending on speech paths taken during initial confrontation.

Notes

  • You can return to the Big MT after the completion of this quest with the Big Mountain Transportalponder!.

Bugs

  • ps3Icon ps3 xbox360Icon xbox360 pcIcon pc When the brain is asked if it wants to be reunited with you, choosing the compromise option, the second choice, will result in a never ending loop of the brain talking about the quests. This only seems to happen if the player has completed Come Fly With Me and That Lucky Old Sun. If this happens, reload the autosave where you entered Mobius' room and pick alternate dialogue options.
  • xbox360Icon xbox360 ps3Icon ps3 Before entering the Forbidden Zone Dome, it is advisable to make a new separate save as when entering through the main entrance into the arena with the X-42 giant robo-scorpion, it is possible to load under the catwalk and become stuck there.
  • pcIcon pc Be mindful before completing the quest and make a save somewhere outside the Think Tank. When the quest is completed and the player is asked to leave Big MT, the moment the slide show starts the game crashes. This forces the player to reload an earlier save. If the last save is inside the dome, they will be trapped.
  • pcIcon pc xbox360Icon xbox360 After finishing this quest by either killing, or talking to the Doctors in the Think Tank, the game may crash as the player tries to leave. This bug occurs when you have a hunger greater than zero, and, inherently, only in Hardcore Mode. If this is the case, turning hardcore off temporarily may allow you to continue bug free to the end.
  • xbox360Icon xbox360 The game may crash as the slide show ends, on the last slide with the Old World flag in the foreground and a sunset in the background, when the screen begins to fade. An Xbox message will say "This Disc is un-readable please turn off the console"
  • When speaking with Dr. Klein at the end of the DLC, some dialogue may repeat when the other brains are trying to keep the player alive.
  • xbox360Icon xbox360 If you enter the Forbidden Zone without first killing the robo-scorpions outside, upon exiting, all of the robo-scorpions will be gone.
  • ps3Icon ps3 If certain choices are made in dialogue, it is impossible to reason with Mobius and killing him becomes the only option, even if the correct skill checks are completed.
    • A possible fix for this bug involves a repair check to fix Mobius' monitor, which can re-initiate the dialogue path needed to avoid killing Mobius.
  • Even with all the holotapes located & installed, the only options available while interacting with the Sink Auto-Doc are heal yourself & respec your traits. This bug seems related only to the Spanish version of the game (Confirmed with the latest Spanish version).
  • ps3Icon ps3 pcIcon pc While entering the Forbidden Zone, the X-42 giant robo-scorpion may not attack you unless you approach it. This will remain the case even when attacking the X-42 giant robo-scorpion.
  • ps3Icon ps3 When the protectrons inside the Forbidden Zone Dome are activated, a seemingly unlimited/invincible number of them may keep attacking the X-42, creating an effective distraction when attempting to destroy the X-42 giant robo-scorpion.
Main quests
Act 1Ain't That a Kick in the Head · Back in the Saddle · By a Campfire on the Trail · They Went That-a-Way · Ring-a-Ding-Ding!
Act 2Wild Card (Wild Card: Ace in the Hole, Change in Management, You and What Army?, Side Bets, Finishing Touches) · The House Always Wins (I, II, III, IV, V, VI, VII, VIII) · Render Unto Caesar · Et Tumor, Brute? · Things That Go Boom · Kings' Gambit · For the Republic, Part 2 · You'll Know It When It Happens/Arizona Killer
Act 3No Gods, No Masters · All or Nothing · Veni, Vidi, Vici · Eureka!
Side quests
New California RepublicAnywhere I Wander · Back in Your Own Backyard · Bitter Springs Infirmary Blues · Boulder City Showdown · Can You Find it in Your Heart? · Climb Ev'ry Mountain · Don't Tread on the Bear! · Emergency Radio · Eye for an Eye · Flags of Our Foul-Ups · Hard Luck Blues · I Don't Hurt Anymore · I Put a Spell on You · Keep Your Eyes on the Prize · Medical Mystery · No, Not Much · Pressing Matters · Restoring Hope · Return to Sender · That Lucky Old Sun · The White Wash · There Stands the Grass · Three-Card Bounty · We Will All Go Together · You Can Depend on Me
Caesar's LegionBeware the Wrath of Caesar! · Caesar's Favor · Caesar's Foe · Caesar's Hire · Cold, Cold Heart · I Hear You Knocking · The Finger of Suspicion · We Are Legion
The StripBeyond the Beef · Bye Bye Love · Classic Inspiration · How Little We Know · Pheeble Will · Talent Pool · The House Has Gone Bust! · The Moon Comes Over the Tower
Freeside & Outer VegasBirds of a Feather · Bleed Me Dry · Debt Collector · G.I. Blues · High Times · Someone to Watch Over Me · The Coyotes · Wang Dang Atomic Tango
BoomersAnt Misbehavin' · Sunshine Boogie · Volare! · Young Hearts
Great KhansAba Daba Honeymoon · Cry Me a River · Don't Make a Beggar of Me · Oh My Papa
Powder GangBooted · I Fought the Law · Run Goodsprings Run · Why Can't We Be Friends?
Brotherhood of SteelEyesight to the Blind · Still in the Dark · Tend to Your Business
OtherCome Fly With Me · Crazy, Crazy, Crazy · Ghost Town Gunfight · Guess Who I Saw Today · Left My Heart · My Kind of Town · The Legend of the Star and A Valuable Lesson · Unfriendly Persuasion · Wheel of Fortune
Companion questsED-E My Love · For Auld Lang Syne · Heartache by the Number · I Could Make You Care · I Forgot to Remember to Forget · Nothin' But a Hound Dog · One for My Baby
Unmarked questsA Bit of Slap and Tickle · A Final Plan for Esteban · Access Powers · All Fired Up! · An Ear to the Ground · Andy and Charlie · Arizona Scavenger · Barton the Fink · Bear Necessities · Big Winner (Atomic Wrangler, The Gomorrah, The Tops, Ultra-Luxe, Vikki & Vance) · Bounty Killer (I, II) · Brotherhood Bond (I, II) · Caching in at the Cove · Cajoling a Cudgel · Claws Mended · Claws Out · Dealing with Contreras · Defacing the Humble Stone · Democracy Inaction · Don't Poke at the Bear! · Eddie's Emissary · Exhumin' Nature · Fight Night · Flogging a Dead Corpse · Friend of the Followers · Gland for Some Home Cooking · Harder, Better, Faster, Stronger · Hat's Entertainment · Help for Halford · Hidden Valley computer virus · Highway to the Danger Zone (I, II) · Honorary Rocketeer · I Love Bananas · Iron and Stealing · Keith's Caravan Charade · Laurifer Gladiator · Lenk's Bad Debts · Lily and Leo · Long-Term Care · Malleable Mini Boomer Minds · Maud's Muggers · Meeting an Equal · Missing a Few Missiles · Most Wanted · Not Worth a Hill of Corn and Beans · Old School Ghoul · A Pair of Dead Desperados (I, II) · Papers, Please · Pistol Packing · Playing on the Old Joana · Poor Meat Never Makes Good Soup · Powder to the People · Power to the People · Razzle Dazzle! · Reach for the Sky, Mister! · Rest and Resupply · Ringo's Caravan Rules · Rotface's Loose Lips · Saving (or Savaging) Sergeant Teddy · The Screams of Brahmin · Silus Treatment · Short-Term Treatment · Smooth-Talking Criminal · The Star Showdown · Strategic Nuclear Moose · Straus Calls · Strip Search · Suits You, Sarah · Tags of Our Fallen · A Team of Moronic Mercenaries · Thought for the Day · Tourist Traipse · Trudy's Radio Repair · A Trusted Aide · Useless Baubles or Fancy Trinkets? · We Must Stop Beating Like This · We Must Stop Meeting Like This · Wind-Brahmin Wrangler · You Gotta Break Out a Few Eggs · You Make Me Feel Like a Woman
Add-on quests
Dead MoneySierra Madre Grand Opening! · Find Collars (8: "Dog", 12: Christine, 14: Dean Domino) · Fires in the Sky · Strike Up the Band · Mixed Signals · Trigger the Gala Event · Put the Beast Down · Last Luxuries · Curtain Call at the Tampico · Heist of the Centuries · Big Winner, Sierra Madre
Honest HeartsA Family Affair · Arrival at Zion · Bighorners of the Eastern Virgin · Chaos in Zion · Civilized Man's Burden · Crush the White Legs · Deliverer of Sorrows  · Departing Paradise · Flight from Zion · Gathering Storms · Gone Fishin' · Happy Trails Expedition · Prisoners of War · Retake the Bridge · River Monsters · Rite of Passage · Roadside Attraction · Sanctity of the Dead · The Advance Scouts  · The Treacherous Road · The Grand Staircase · Tourist Trap
Old World BluesAll My Friends Have Off Switches · A Brain's Best Friend · Coming Out of Her Shell · Field Research · He Came... And Went · Influencing People · Midnight Science Fiction Feature! · Old World Blues · On The Same Wavelength · Picking Your Brains · Project X-13 · Sonic Emitter Upgrade · Welcome to the Big Empty · What's In A Name? · When Visitors Attack · X-2: Strange Transmissions! · X-8 Data Retrieval Test · X-8: High School Horror! · X-13: Attack of the Infiltrator!
Lonesome RoadThe Reunion · The Silo · The Job · The Launch · The Tunnelers · The Divide · The Courier · The End · The Apocalypse

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