BioShock Infinite

BioShock Infinite

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The Ol' One-Two

The Ol' One-Two

In CitC, used all eight different vigor combos to deliver the killing blow on an enemy.

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How to unlock the The Ol' One-Two achievement in BioShock Infinite - Definitive Guide

When you first play the Clash in the Clouds DLC you'll have to pick up the first 4 vigors on the table to your left |FREE SAMPLES|, then when playing some of the waves you'll have to save up money to buy the rest of the Vigors. Once you start to combo on a kill you'll see what you combo pop up in white and how much money you've earned.

Total of 8 different combination moves are:

• Possession and Shock Jockey
• Possession and Devil's Kiss
• Devil's Kiss and Charge
• Murder of Crows and Devil's Kiss
• Murder of Crows and Shock Jockey
• Bucking Bronco and Devil's Kiss
• Bucking Bronco and Charge
• Undertow and Shock Jockey

Load up Raven's Dome for the last couple of kills you need done and keep doing Wave 1 or Wave 2 if needed.

For Possession + Shock Jockey you'll have to Possess the enemy first then shock them repeatedly until the Possessed enemy gets a kill while being shocked. The Possessed Enemy HAS TO GET THE KILL, NOT killing the enemy with Possession and Shock Jockey.

For Possession + Devil's Kiss you'll have to Possess the enemy first then Devil's Kiss setting them on fire, the Possed enemy HAS to get the kill while being on Fire. This is a bit tricky since you could kill the Possessed Person with Fire Damage or it delays the kill. The Possessed person has to get the kill.

You might wanna upgrade the vigors or salt infusion or at least damage the enemies then use it. It's a cumulative achievement so you can come back to it or do it on any waves. (Also what helped me was putting a check mark or opening a word document on the ones I already did.)
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30 Jul 2013 17:06

41 Comments
Small note: getting the effect that sets enemies on fire when you use Charge counts as the Charge/Devil's Kiss combo
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By redjarman on 31 Jul 2013 01:42
Can you shoot the enemy some to make it easier to kill him with the vigor and have it count towards the combo? It doesn't seem to be very consistent with giving me credit for doing the combo.
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By Achilles337 on 31 Jul 2013 04:25
@Achilles - I'd suggest going back to Wave one on one of the maps. I think Raven's Dome Wave one or two would have the best enemies to do this achievement on. Also try upgrading your infusions more to work on combos. You have to KILL the enemy with the combos. It's all about timing too with the combos. Good Luck hope this helps.
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By A Batwoman on 31 Jul 2013 04:35
I can't get this no matter how many times I try. I know I've got at least four because I receieved a notification saying 4/8 but I don't know which ones I have already done :s
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By Yazite on 31 Jul 2013 16:07
I can't get this ! It's glitched... I ve done many time all the combinations... I'received the notification 4/8 too...
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By WhiterValkyrie on 31 Jul 2013 16:59
@TwiK & Whiter - Just keep comboing stuff together I suggest just going through the list a second time try wave one or two in Raven's Dome since these are low health enemies. Just make sure your killing the enemies with the combos. The ones I was missing was Possession combos and Murder Crow + Shock. You have to KILL the enemies with the combos NOT DAMAGE.
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By A Batwoman on 31 Jul 2013 17:24
Got it! Apparently I hadn't done bucking bronco+devils kiss.
Thanks for the guide.
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By Yazite on 31 Jul 2013 17:33
@TwiK - Anytime glad I could help! The only way to get it is to probably check everything twice until you get it.
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By A Batwoman on 31 Jul 2013 18:42
As Missjaded states, you have to get a KILL with each combo. The achievement will not pop if you get the combo but only do damage. I went thru the full list twice before I reread the achievement description stating "deliver the killing blow". Thanks for the guide!
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By Xx1337SniPerzxX on 31 Jul 2013 23:30
@1337SniPerz - You are welcome. Thanks for clearing it up for those still confused. :] Yeah you have to get a kill with these combos not damage.
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By A Batwoman on 01 Aug 2013 01:37
Got it! clap Your solution guide works perfect for me, thank you very much for that. I missed the Undertow + Shock Jockey kill.
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By ThomsenWilli on 02 Aug 2013 03:59
@ Confide - It's Accumulative says right in the soultion so you can come back to it. Nope any wave any time.
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By A Batwoman on 02 Aug 2013 23:28
What a fucking piss off achievement. Is there even a lace to check progress? Ken Levine should be fired for this garbage.
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By ChknFingrs on 10 Aug 2013 06:34
I'm at 7/8 and cannot for the life of me figure out what I'm missing. It might be possession and devils kiss but almost as soon as I set them on fire they die or if they live through that the effect wears off.
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By gamrdude1919394 on 16 Aug 2013 16:20
@gamrdude - That's what I was missing. Try it. Or try any other possession combo. Just remember you have to make sure you Possession the enemy and then set him on fire HE has to get the kill while he's on fire and possessed not you.
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By A Batwoman on 16 Aug 2013 16:55
Got it! Was apparently missing Bronco + Devil. Shame there's no handy dandy tracker for this.
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By gamrdude1919394 on 16 Aug 2013 23:45
Just a tracker in your head ;-o
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By A Batwoman on 17 Aug 2013 01:36
I just performed each of the combinations twice and the achievement still hasn't popped.
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By R3aper00 on 27 Aug 2013 18:24
@MissJaded- I did make a list off all the combos and I did check them off each time that the game credited me we points for the combo but it is always worth giving it another try so thanks.
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By R3aper00 on 28 Aug 2013 01:56
@R3aper00 - Don't know how many times I made a list and re did them all and found out I was missing Bronco + Devil because I thought I did it but you have to do it like super fast. Also the possessions are tricky. Just make sure you do them as fast as you can for it to count.
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By A Batwoman on 28 Aug 2013 13:41
For Possession / Devil's Kiss, I have Devil's Kiss fully upgraded. That said, Devil's Kiss almost immediately kills most of the low-level enemies and the burning effect doesn't last long on "heavy hitter" enemies.

Does anyone have any advice so I don't have to delete my saved game and start over with a non-upgraded Devil's Kiss?
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By GoetheKatzchen on 13 Sep 2013 14:39
I'm having the same problem as Goethe. DK kills them almost instantly. Did you do these combos when you were at lower levels Jaded? Any advice from anyone would be greatly appreciated.
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By Dat dat Sker on 17 Sep 2013 10:39
The last for me was Bucking Bronco & Devils Kiss; just remember to keep alternating between casting the two vigors to avoid one wearing off before the others does it job.

RPG guns are good if your DK vigor is overpowered for the Possession & DK. They can survive the fire damage for a lot longer than regular grunts.
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By aNiall8 on 28 Sep 2013 10:26
Great solution, will keep a track and tick them off as I go through the DLC
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By MugenKairo on 08 Oct 2013 11:01
The tricky one for me was Devil's Kiss + Charge, oddly enough. I just kept going through the list until I was sure I had completed each combo. The first wave on Duke and Dimwit Theater is perfect for the Possession-based combos, fwiw.
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By Page Daemon on 21 Oct 2013 23:16
Great solutionclaphelped me a lot!
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By biegeeinheit on 06 Feb 2014 14:31
I believe this achievement IS glitchy. I've worked on on it for days with no success. I then moved my save file to USB then tried it on a new game and got it in 10 minutes. headspin
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By PerfectMoS DeF on 14 Mar 2014 07:01
@PerfectMoS DeF - Maybe you aren't doing one of them right it's not fully registering. I would restart pull up a word document write down all of them and cross off each one you did. Some of them are picky like the possession ones. Devil's Kiss + Bronco is the most pickyest because you have to not kill them with Devil's Kiss because it can damage them alot. Maybe bumming up the difficulty if you can for that one if you're killing them with too much fire damage. Hope this helps reading comments or looking at more youtube videos could help.
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By A Batwoman on 14 Mar 2014 11:22
The combo kill will score if it is successful (ie: Possession/Shock Jockey kill +45) Those are the only ones that count. Enemy has to die from the combo.
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By ChiefMelee on 26 Mar 2014 20:43
@Missjaded. I did get it but like I said I removed my savwinke file + started a new game + got it playing a new file.
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By PerfectMoS DeF on 30 Mar 2014 12:49
Thanks for the list and tips!
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By Dune Mentat on 22 May 2014 14:38
For what it's worth, I was able to get the Possession combos by possessing and lighting up a Patriot (specifically, the Patriot on the 2nd wave of Duke and Dimwit Theater.)
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By Allanar72 on 12 Jun 2014 14:21
Just to clarify, for the Undertow + Shock Jockey, you have to PUSH the enemy and then shock him, not pull him in.
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By RepairedSpace06 on 19 Feb 2015 14:45
Ok, finally got it with new save file. Did everything with new save also, but no ach. Problem was that one that I had already done earlier, was gone. Game froze, and doesn't save between waves. Probably same happened with my main save as I remember game freezing couple times.
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By Zalexzy on 17 Nov 2015 22:44
Stuck ta 7/8, i miss possession+shock. I re-do it several times before count and pop the chevo. Keep trying !!
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By ZyGouNeTte on 02 May 2018 20:50
It seems like the achievement only shows 1/8, 4/8 and 7/8 markers so I would recommend doing it as soon as you start the dlc and then worry about the others that aren't so specific. You can grind out a few waves on the first arena, die and then redo it from the beginning to earn the kills. As mentioned above, I ended up deleting all my saves to make sure I could track it right.
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By The S bot 9000 on 03 Jun 2019 02:23
Had to start a new save, and on the 8th try of doing everything over and over again it actually popped.
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By Sanglamore on 28 Feb 2020 00:32
Great guide toast
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By SwiFTriX on 21 Jun 2021 23:35
Make sure for Bucking Bronco + Devil's Kiss you don't hit the enemy directly with the Devil's Kiss otherwise it doesn't count. Just throw it near the enemy you have in the air
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By DanTheWhale on 12 Jun 2024 06:05
@R3aper00 - Pull up a word document copy and paste all the combos then do the combos in order and put a strike on each one. I know that you you have think you've done all of them but trust me this will be best. Also really check the Possession combos and Bronco + Devil because that's the one I missed and others. Hope this help just keep at it dont stress about it too much come back to it later if you have to it will be there. :]
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By A Batwoman on 27 Aug 2013 19:03
+1 Guide. toast I thought Possesion+KockShocky and Possesion+DevilsKiss were keeping me from getting this chevo. I finally went back through the "easy" ones and found the ONE that I was missing. BuckingBronco+Charge facepalm

Bottom Line: If in doubt, re-do the easy ones.
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By The Planet Pete on 11 Oct 2013 22:10
View all 41 comments Show less comments

This trophy is practically the same as Combination Shock from the main game, except that this time you must get the killing blow from your Vigor combination as well. Since you have to kill with, it is advisable to weaken the enemies with gunfire first before you use your Vigors.

A Vigor combination is where you fire two Vigors in quick succession at an enemy to produce a variety of different effects. To do this make sure you have the two Vigors you want to equip, ready in your Vigor slots by selecting them both with the selection wheel (hold ) then find the enemy you wish to use the combination on and use a Vigor on him with . Quickly swap to the second Vigor with and press again to fire that at the enemy. The 8 Vigor combinations are:

  • Bucking Bronco + Charge
  • Bucking Bronco + Devil's Kiss
  • Devil's Kiss + Charge
  • Murder of Crows + Devil's Kiss
  • Murder of Crows + Shock Jockey
  • Possession + Devil's Kiss
  • Possession + Shock Jockey
  • Undertow + Shock Jockey


Most of these are fairly simple but the two Possession combinations are slightly more complicated. Killing an enemy with Shock Jockey or Devil's Kiss whilst they are Possessed will not work. Instead the enemy you have Possessed must kill another enemy whilst set on fire or electrocuted, depending on the Vigor you used.

Again, the first few Waves of OPS Zeal are the best place to farm these as there are only weak Soldier enemies who pose little threat to you.

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The bottom line is that you need to kill the enemy with all combinations of energy drinks. There are 8 combinations in the game.

1. Possession + Devil's Kiss

2. Possession + Shock Jockey

3. Murder of Crows + Devil's Kiss

4. Murder of Crows + Shock Jockey

5. Bucking Bronco + Devil's Kiss

6. Bucking Bronco + Charge

7. Undertow + Shock Jockey

8. Devil's Kiss + Charge

The trick is that the first two combinations do not kill the one (he kills himself because of " Possession" , this does not count) on whom they are applied, and, therefore, their effect lies in something else - you need to make sure that the enemy on whom it is applied one of these combinations killed someone. That is, a soldier under the influence of the combination "Possession + Devil'sKiss" must kill an ordinary soldier. Same with Shock Jockey .
The tactics are simple - we wound one soldier to the point of being “almost dead”, and hypnotize another soldier.
The other 6 combinations are usually lethal for a common soldier and there are no problems with them.
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08 Jul 2014 07:07

The tips for the Combination Shock trophy will help, but there is one BUT, you need to KILL the enemy for the combination to count
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31 Jul 2013 23:42

2 Comments
The combinations Possession + Devil's Kiss and Possession + Shock Jockey only count towards the trophy if done as follows. You need to “hypnotize” the enemy and “charge” him with the appropriate Vigor (by shooting him with lightning or exploding a fire grenade nearby). After this, he must kill the enemy with lightning or fire.
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By DVRUS on 12 Feb 2014 23:26
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By KirillLapkin on 08 Mar 2014 10:05