Unlocked: Apr 25, 2011 5:45am
Wake Up Call
Survive the manual override
Unlocked: Apr 25, 2011 6:43am
You Monster
Reunite with GLaDOS
Unlocked: Apr 25, 2011 6:49am
Undiscouraged
Complete the first Thermal Discouragement Beam test
Unlocked: Apr 25, 2011 7:21am
Bridge Over Troubling Water
Complete the first Hard Light Bridge test
Unlocked: Apr 25, 2011 10:06am
SaBOTour
Make a break for it
Unlocked: Apr 25, 2011 10:35am
Stalemate Associate
Press the button!
Unlocked: Apr 25, 2011 11:28am
Tater Tote
Carry science forward
Unlocked: Apr 25, 2011 11:12am
Vertically Unchallenged
Master the Repulsion Gel
Unlocked: Apr 25, 2011 11:53am
Stranger Than Friction
Master the Propulsion Gel
Unlocked: Apr 25, 2011 12:07pm
White Out
Complete the first Conversion Gel test
Unlocked: Apr 26, 2011 3:17am
Tunnel of Funnel
Master the Excursion Funnel
Unlocked: Apr 25, 2011 12:37pm
Dual Pit Experiment
Do the same test twice
Unlocked: Apr 26, 2011 8:38am
The Part Where He Kills You
This is that part
Unlocked: Apr 26, 2011 9:09am
Lunacy
That just happened
Unlocked: Apr 26, 2011 8:39am
Pit Boss
Show that pit who's boss
Unlocked: Apr 25, 2011 7:06am
Preservation of Mass
Break the rules in Test Chamber 07
Unlocked: May 28, 2011 9:45am
Final Transmission
Find the hidden signal in one of the Rat Man's dens
Unlocked: Apr 25, 2011 10:07am
Good Listener
Take GLaDOS' escape advice
Unlocked: May 30, 2011 9:08am
Scanned Alone
Stand in a defective turret detector
Unlocked: Apr 25, 2011 10:17am
No Hard Feelings
Save a turret from redemption
Unlocked: Jun 13, 2011 7:52am
Portrait of a Lady
Find a hidden portrait
Unlocked: Apr 25, 2011 7:35am
High Five
Celebrate your cooperative calibration success
Unlocked: Apr 25, 2011 8:07am
Team Building
Complete all test chambers in the Team Building co-op course
Unlocked: Apr 27, 2011 12:47pm
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
Unlocked: Apr 27, 2011 1:32pm
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked: Apr 29, 2011 10:06am
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
Unlocked: Apr 29, 2011 11:16am
You Saved Science
Complete all test chambers in all courses of co-op
Unlocked: Apr 29, 2011 9:35am
Gesticul-8
Perform all 8 gestures of your own volition in co-op
Unlocked: Apr 27, 2011 1:14pm
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked: Jun 11, 2011 5:58am
Party of Three
Find the hidden companion cube in co-op test chamber
Unlocked: Jun 11, 2011 5:18am
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
Unlocked: May 4, 2011 7:58am
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked: Apr 29, 2011 9:42am
Air Show
Perform 2 aerial gestures before touching the ground in co-op
Unlocked: Apr 27, 2011 1:06pm
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row
Unlocked: May 4, 2011 8:00am
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list
Drop Box
Place a cube on a button without touching the cube
Overclocker
Complete Test Chamber 10 in 70 seconds
Pturretdactyl
Use an Aerial Faith Plate to launch a turret
Schrodinger's Catch
Catch a blue-painted box before it touches the ground
Ship Overboard
Discover the missing experiment
Door Prize
Examine all the vitrified test chamber doors
You Made Your Point
Refuse to solve the first test in Chapter 8
Smash TV
Break 11 test chamber monitors
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
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
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course
