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| icon | info |
|---|---|
 | Wake Up Call Survive the manual override unlocked May 11th, 2012 12:09 pm |
 | You Monster Reunite with GLaDOS unlocked May 11th, 2012 12:37 pm |
 | Undiscouraged Complete the first Thermal Discouragement Beam test unlocked May 11th, 2012 12:47 pm |
 | Bridge Over Troubling Water Complete the first Hard Light Bridge test unlocked May 11th, 2012 2:03 pm |
 | SaBOTour Make a break for it unlocked May 11th, 2012 3:19 pm |
 | Stalemate Associate Press the button! unlocked May 11th, 2012 3:48 pm |
 | Tater Tote Carry science forward unlocked May 11th, 2012 6:09 pm |
 | Vertically Unchallenged Master the Repulsion Gel unlocked May 11th, 2012 5:28 pm |
 | Stranger Than Friction Master the Propulsion Gel unlocked May 11th, 2012 6:27 pm |
 | White Out Complete the first Conversion Gel test unlocked May 11th, 2012 6:44 pm |
 | Tunnel of Funnel Master the Excursion Funnel unlocked May 12th, 2012 12:13 am |
 | Dual Pit Experiment Do the same test twice unlocked May 11th, 2012 11:12 pm |
 | The Part Where He Kills You This is that part unlocked May 12th, 2012 12:38 am |
 | Lunacy That just happened unlocked May 12th, 2012 1:07 am |
 | Drop Box Place a cube on a button without touching the cube |
 | Overclocker Complete Test Chamber 10 in 70 seconds |
 | Pit Boss Show that pit who's boss |
 | Preservation of Mass Break the rules in Test Chamber 07 unlocked May 11th, 2012 1:43 pm |
 | Pturretdactyl Use an Aerial Faith Plate to launch a turret |
 | Final Transmission Find the hidden signal in one of the Rat Man's dens |
 | Good Listener Take GLaDOS' escape advice |
 | Scanned Alone Stand in a defective turret detector unlocked May 11th, 2012 3:31 pm |
 | No Hard Feelings Save a turret from redemption |
 | Schrodinger's Catch Catch a blue-painted box before it touches the ground |
 | Ship Overboard Discover the missing experiment unlocked May 11th, 2012 6:02 pm |
 | Door Prize Examine all the vitrified test chamber doors unlocked May 11th, 2012 6:05 pm |
 | Portrait of a Lady Find a hidden portrait |
 | You Made Your Point Refuse to solve the first test in Chapter 8 |
 | Smash TV Break 11 test chamber monitors |
 | High Five Celebrate your cooperative calibration success unlocked May 11th, 2012 2:51 am |
 | Team Building Complete all test chambers in the Team Building co-op course unlocked May 12th, 2012 2:05 am |
 | Confidence Building Complete all test chambers in the Mass and Velocity co-op course unlocked May 12th, 2012 2:13 pm |
 | Bridge Building Complete all test chambers in the Hard-Light Surfaces co-op course unlocked Nov 17th, 2013 8:09 pm |
 | Obstacle Building Complete all test chambers in the Excursion Funnels co-op course unlocked Nov 17th, 2013 9:34 pm |
 | You Saved Science Complete all test chambers in all courses of co-op unlocked Nov 17th, 2013 11:10 pm |
 | Iron Grip Never lose a cube in Chamber 6 of the Mass and Velocity co-op course unlocked Jul 17th, 2025 2:01 pm |
 | Gesticul-8 Perform all 8 gestures of your own volition in co-op unlocked Nov 17th, 2013 9:01 pm |
 | Can't Touch This Dance in front of a turret blocked by a hard light bridge in co-op unlocked Nov 17th, 2013 7:38 pm |
 | Empty Gesture Drop your co-op partner in goo while they are gesturing by removing the bridge under them |
 | Party of Three Find the hidden companion cube in co-op test chamber |
 | Narbacular Drop Place a portal under your co-op partner while they are gesturing |
 | Professor Portal After completing co-op, complete Calibration Course online with a friend who hasn’t played before |
 | Air Show Perform 2 aerial gestures before touching the ground in co-op unlocked Jul 17th, 2025 1:37 pm |
 | Portal Conservation Society Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements |
 | Four Ring Circus Enter 4 different portals without touching the ground in co-op |
 | Triple Crown Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
 | Still Alive Complete Course 4 with neither you nor your co-op partner dying |
 | Asking for Trouble Taunt GLaDOS in front of a camera in each of the five co-op courses unlocked Nov 17th, 2013 10:01 pm |
 | Rock Portal Scissors Win 3 co-op games of rock-paper-scissors in a row unlocked May 12th, 2012 2:00 am |
 | Friends List With Benefits While playing co-op, hug 3 different people on your friends list unlocked Jul 17th, 2025 1:30 pm |
 | Talent Show Never lose a cube in Chamber 6 of the Mobility Gels co-op course |
