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Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before

Professor Portal0
6 guidesOnline Game ModeCooperativeViral
MailOrderCowb0yMailOrderCowb0y168,223
20 Apr 2011 30 Jan 2012
83 4 50
Just a few tips to make sure you get this and don't disqualify you or your friends from this achievement
-One player must have beaten the entire Co-op before and one player must have never done the tutorial.
-The player who has never done the tutorial must never been in a chamber, the central hub is fine.
-Single player does not affect this, so you can have played the whole single player and it won't affect this.
-If you are going for other achievements, such as Friends list with benefits or other similiar co-op ones, skip the tutorial by pausing during the opening cutscene and returning to the hub.
-This cannot be done split-screen, must be two players with Active X-box Live accounts
-The only required chamber is the tutorial chamber where you acquire the gun and calibrate weight variances, which can really upset humans if you bring up :)

Hope this helps.
NiteraceNice tips man. It's a straightforward achievement. I just want to point out that you can't do this split screen :/ I tried with two of my alts, both of them were silver though so maybe that's the reason. I don't know if you can split screen on XBL by inviting your alt that is Gold or not, but local split-screen does not work it has to be on XBL.
Posted by Niterace on 20 Apr 11 at 16:03
toidi diputsA. This has to be online.
B. This has to be with a friend who either:
I: invited you
II: you invited
this can't be done by jumping into a random game and sending a friend request to the first person you find who hasn't started Co-Op, you gotta drop and reinvite. My brother found that out the hard way.
Posted by toidi diputs on 21 Apr 11 at 03:12
MazraelWhat it, they move their game save to a USB (then remove it from the machine before starting up the game), would that count as never played before?
Posted by Mazrael on 21 Apr 11 at 14:45
JoKeRs ObLiViOni need help gettin this, i have an extra account that hasnt played before so i can get it for you as well.
Posted by JoKeRs ObLiViOn on 21 Apr 11 at 18:23
JaggexedgeMazael - No, that does not work because that information is tied to your gamer profile. The only information that gets saved to your HD is your control settings, and saves from single player.


I found a really easy way was to search for a random person online, send a friend request, once/if they accept back out and send a game invite. The achievement will unlock once you both do the High-Five in front of the camera.

In exchange, you can always help them with the first few courses and give them a hug.
Posted by Jaggexedge on 21 Apr 11 at 19:04
AvataFYI - There's a thread over in the Portal boards for MP virgins to volunteer their services: Co-op Virgin Willing to 'Give It Up' (For Science)
Posted by Avata on 22 Apr 11 at 14:26
MazraelThat sucks.. finding a co-op virgin is going to get rediculous
Posted by Mazrael on 22 Apr 11 at 23:43
DimmockTook me 5 attempts on UK release day to find one.
Posted by Dimmock on 24 Apr 11 at 10:18
BrumtownMangleri would recommend using TA to track players who've only recently started playing the game. for example if you look at the last people to have won the "lunacy" achievement you are likley to find players who have finished single player missions but have not played co-op yet. also check their cheevos to see if they have "hi-Five" yet to make sure. after about half an hour of friend requesting and sending messages i found a buddy to do this with, and returned the favour by helping him get other achievements. hope this helps somebody.
Posted by BrumtownMangler on 25 Apr 11 at 18:08
SmokingBmbr465If my friend has finished CO-OP in splitscreen with someone else, then I play him over xbox live on a seperate console, will he still get the achievement?
Posted by SmokingBmbr465 on 29 Apr 11 at 18:55
GeoffistophelesI'm not sure if this was a localized case or not, but I ended up having to do this twice. The first time, I started the session, went to the central hub, had to pause and go to calibration, but didn't get it. The second time, the MP virgin started the session, immediately went to calibration, and it popped that time.

In short, to be on the safe side, have the MP virgin start the session; I've had problems when I made it and went back to calibration.
Posted by Geoffistopheles on 18 May 11 at 20:05
x6StringSkepticI've done some of the co-op on my console split screen, but not online... Will I still be able to help someone else get this? If so, send a friend request, and I'll do it.
Posted by x6StringSkeptic on 20 May 11 at 02:46
FilthySaintI need to complete this achievement with someone. I have beaten co-op so i will need someone who is new to it. If you can help message me on xbox.
Posted by FilthySaint on 24 May 11 at 21:29
nindreamsI have completed the multiplayer and need a noobie to help. Am willing to help with any/all other multiplayer achievements. Friend request me with a message reading, "will give it up." Thanks.
Posted by nindreams on 25 May 11 at 11:46
EweStickyCowIf anyone is going to go for this tonight and can get an account with free month trial, I can do it with you. I hired the game and it is due back tomorrow with only this achievement and the hugs to go! RAGE! I'll be on for the next few hours so message me if you can help please!
Posted by EweStickyCow on 06 Jun 11 at 09:22
QuarantaneI wonder if deleting the entire game from your hard drive, or playing your main co-op playthrough on a flash drive and starting from a fresh hard drive would be able to net this.

Don't have this yet, but I know my girlfriend will love it when I can get it for her.
Posted by Quarantane on 13 Jun 11 at 02:39
OnzaDoes finishing co-op, for the FIRST time, on split-screen count? Then, after that, can you try to find an on-line player? Thanks
Posted by Onza on 22 Jun 11 at 16:35
LemonyGaron1me and a friend have both cleared co-op, we both made spare accounts and i took a virgin account on and he used his.

i started the game and completes the tutorial with him but he never got the achievement.....
any ideas what happened?
Posted by LemonyGaron1 on 01 Nov 11 at 00:34
Pacer Familydlc doesnt effect this right?im about to try it bu havnt beat all dlc levels
Posted by Pacer Family on 02 Jan 12 at 22:40
Craiglionhearti have not done anything in co op so i will 'give up my co op virginity' for anyone who needs this achievement, as long as i get a hug for it lol, just add me
Posted by Craiglionheart on 12 Jun 12 at 12:52
LezardValeth80Anyone willing to help with this? I'm willing to create a new account if someone needs it in return!
Posted by LezardValeth80 on 12 Jan 13 at 01:56
BiggieD99I've not played this yet so if you want to add me and get this achievement then please do so.
Posted by BiggieD99 on 22 Jan 13 at 09:10
xX MothMan XxThis is the last achievement I need. Willing to make dummy accounts with someone and help them get it for both of us. Message me if interested.
Posted by xX MothMan Xx on 05 Mar 13 at 03:35
Js2DeathI have not completed the calibration part but have done everything else, if I go for professor portal like this will I get the achievement or do I need to complete calibration
Posted by Js2Death on 18 Apr 13 at 20:07
MailOrderCowb0yIt says after finishing co-op and I would go with the assumption that the calibration is apart of the co-op so yes complete the calibration.
Posted by MailOrderCowb0y on 18 Apr 13 at 20:49
OnzaGood tips, referencing
Portal 2You Saved ScienceThe You Saved Science achievement in Portal 2 worth 161 pointsComplete all test chambers in all courses of co-op
might be a good idea to be sure "One player must have beaten the entire Co-op"
Posted by Onza on 15 Jul 13 at 15:13
DumpyTarsier18Willing to make some dummy accounts with someone to get this I have a few 2 day passes that should still work. Message me on live or here if you want. Also need to work on hug achievement.
Posted by DumpyTarsier18 on 12 Aug 13 at 00:54
YaziteI'm willing to make a new 48 hour gold account in exchange for another person to do the same and both get this achievement.

GT: TwiK999
Posted by Yazite on 13 Nov 13 at 19:29
The Caged Ragelooking for hug achievement and this one. If anyone wants to get this guy, hit me up.
Posted by The Caged Rage on 01 Dec 13 at 22:11
ScottLy95I have a gaming session set up for ths on Jan 24 9am GMT, if anyone needs this?
Posted by ScottLy95 on 22 Jan 14 at 20:14
UplandParasite8Can i do this splitscreen using a dummy account with xbox live gold on the same xbox?
Posted by UplandParasite8 on 23 Feb 14 at 10:38
XwolfanXno, doesnt work UplandParasite8, it has to be online :S, my question its, both accounts get the achievement ? or just the one that alrdy finish the co-op ?
Posted by XwolfanX on 06 Mar 14 at 19:57
fEAt Q QubibCan anyone help me with this achievement I got live codes but don't know anyone that have the game, message me if anyone can help, I live in time zone +1 :)
Posted by fEAt Q Qubib on 08 Mar 14 at 19:13
OnsidicYeah i've completed it as well, looking for someone to help me out as can't do split screen :(
Posted by Onsidic on 14 Apr 14 at 16:53
GemgemchanIm looking for help with this one, I completed all co-op on my main account but now I need someone to help me get this achievo.

In return I can help them too! I have created a spare dummy account for anyone who can help me out

GT: Gemgemchan
Posted by Gemgemchan on 22 Aug 14 at 00:19
HoopindaleLooking for help with this and friends list with benefits. Glad to help with anything you need too.
Posted by Hoopindale on 10 Sep 14 at 03:52
TheMaskMan60Need someone to help me do this GT;TheMaskMan60 just send me a friend request
Posted by TheMaskMan60 on 30 Nov 14 at 20:52
TheMaskMan60Willing to make a dummy acount trade
Posted by TheMaskMan60 on 30 Nov 14 at 20:53
endeavour53Need some help with this. willing to make a dummy account to return the favor. Message me in game if interested.
Posted by endeavour53 on 26 Apr 15 at 21:16
KettStill need this, it's currently free gold weekend so if anyone's will to help it would be appreciated. Gamertag is Jushtin, just send a message.
Posted by Kett on 02 May 15 at 19:36
MulticronXI need to do this and will make dummy account. Message me.
Posted by MulticronX on 03 Jun 17 at 03:40
BeatStradivariCan anyone help me with this achievement?
Posted by BeatStradivari on 01 Jul 18 at 17:08
A Big Radroachhttps://www.cdkeys.com/xbox-live/memberships/xbox-live-14-da...

If you're really stuck and playing co-op with a friend. Just CD Keys it, make a temp account, make it gold and do what you need to.
Kinda pay to win but it's still a method that works today in this great but sadly unpopulated game
Posted by A Big Radroach on 26 May 19 at 21:13
Steve ShepI've got a few dummy accounts that haven't played it message me on live and I'll give someone a hand first come first serve
Posted by Steve Shep on 01 Jun 19 at 22:15
Gilbert PrimeI ended up buying a used copy of Portal 2 which I gave to a friend who had never played it. It was easier than having someone who already had the game create a fake Gold account.
Posted by Gilbert Prime on 01 Aug 20 at 17:55
RadgetaPlease message me this if you are just starting Portal 2.
Posted by Radgeta on 04 Mar at 14:58
JackingtonfrostRileymesh I need help with the achievement. Are you free to play today? :)
Posted by Jackingtonfrost on 30 Apr at 10:05
Dead RangoNeed to get this one too, message me on xbox if you want to get it with me
Posted by Dead Rango on 05 May at 17:55
Ar0nP1aYz05Message me if anybody doesn't have it, because I don't have this achievement either, but we'll figure it out.
Posted by Ar0nP1aYz05 on 05 Jul at 11:38
XRaviolXAs of 2021, I'm still looking for someone to help me get the " Professor Portal" achievement. I've already beaten co-op before, but feel free to message me if you want to help
Posted by XRaviolX on 10 Oct at 17:43