Professor Portal achievement in Portal 2

Professor Portal

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

Professor Portal0
6 guidesOnline Game ModeCooperativeViral

How to unlock the Professor Portal achievement

  • MailOrderCowb0yMailOrderCowb0y168,223
    20 Apr 2011 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.

    Guide not helping? View 5 more guides for this achievement.

    Showing most recent comments. View all comments.
    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
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  • dropK1CK ninJAdropK1CK ninJA585,889
    30 Apr 2011 30 Apr 2011 14 May 2011
    52 3 5
    You must have completed the co-op campaign.

    You cannot get this achievement on split screen.

    You have to have them on your friends list.

    You can also create temporary accounts that get 1 month of free Xbox Live Gold and you can get this achievement with a friend.

    They need to generate a new Windows Live ID -- -- (I went with a generic, DKBOT e-mail address). Sign in with a new account on your Xbox. Attempt to sign-up for Xbox Live Gold, select the "Upgrade Later" option and sign-up under a Silver account. The next screen will offer you a free month of Xbox Live Gold with your new account and accept this offer.

    There you go, a free second account and you don't have to find a 48-hour code or attempt to track down a new friend who hasn't started the co-op.
    Showing most recent comments. View all comments.
    AlexYou can only create three different accounts with a free one month trail.
    Posted by Alex#66005 on 13 Aug 11 at 21:06
    zoidberg1339I can't even make one :(
    Posted by zoidberg1339 on 27 Jan 13 at 06:33
    zoidberg1339I can't even make one :(
    Posted by zoidberg1339 on 27 Jan 13 at 22:12
  • Crimson CrunchCrimson Crunch287,313
    22 Apr 2011 21 Apr 2011
    34 7 14
    Here a way to get this achievment Easily.
    1.Complete coop with someone.
    2.You and your coop partner create a new xbox live account each / use a 48 hour trial on 2 seperate accounts.
    3.You play the tutorial with the other persons 2nd account.
    4.They switch back to normal account and you switch to second account.
    5.You then do the tutorial again, opposite of 3.
    6. You both should have the achievment with normal accounts which did 1.

    Make sure that you are Friends with the other accounts when you do the tutorial with them,Or you will not get the achievment.
    Showing most recent comments. View all comments.
    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 16:36
    Crimson CrunchYou can do split screen thats what i did =)
    Posted by Crimson Crunch on 22 Jun 11 at 18:06

    I don't have the game yet (it's in the mail), but I plan to offer my services, finish, then hopefully get the achievement myself.
    Posted by Onza on 24 Jun 11 at 14:33
  • Dark KarbonDark Karbon206,456
    22 Apr 2011 22 Apr 2011 22 Apr 2011
    27 17 6
    If you can't find anyone to do this achievement with, there is still some hope.

    Step 1: Search for a random player.

    Step 2: Look at the players achievements before the game starts.

    Step 3: Quit out of the match and send a friend request if they have no co-op achievements.

    Step 4: Invite them to your game and complete the Calibration Course.

    The other player MUST be on your friends list BEFORE the game starts.
  • TranierxTranierx514,762
    19 May 2017 19 May 2017 25 May 2017
    3 0 4
    You can solo boost this with only one gold account, an Xbox One, and a 360 or another One.
    You will need either two discs or one digital version for this method.

    Note: To access the 360's home button (cn_guide) functionality on your Xbox One press cn_back+cn_start.

    1. Make sure that you have completed co-op with your main account first.
    2. Make sure one of the Xbox Ones is the gold's home Xbox (Settings > Personalization > My home Xbox). I will refer to this as the Gold Xbox One.
    3. Log into the Gold Xbox One with your 2nd account and launch the game. Send your main friend request from the 360 dashboard (cn_back+cn_start).
    4. Launch the game on your second console with your main account and accept the friend request.
    5. Start co-op mode and invite your friend.
    6. Complete calibration course and unlock the achievement.
  • Quacky 2 DucksQuacky 2 Ducks82,420
    31 Aug 2016
    4 4 0
    This is less of a solution, and more of a tip. I know not many people are still playing this game, but oh well. One way to easily know if you have completed the co-op campaign already (if you're not sure) is to see if you have the "You Saved Science" achievement. You get this for completing the co-op courses. Just a small tip!
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