Unlocked: Jul 3, 2011 6:23am
Wake Up Call
Survive the manual override
Unlocked: Jul 3, 2011 6:51am
You Monster
Reunite with GLaDOS
Unlocked: Jul 3, 2011 6:59am
Undiscouraged
Complete the first Thermal Discouragement Beam test
Unlocked: Jul 3, 2011 7:39am
Bridge Over Troubling Water
Complete the first Hard Light Bridge test
Unlocked: Jul 3, 2011 8:26am
SaBOTour
Make a break for it
Unlocked: Jul 3, 2011 8:53am
Stalemate Associate
Press the button!
Unlocked: Jul 3, 2011 10:07am
Tater Tote
Carry science forward
Unlocked: Jul 3, 2011 9:31am
Vertically Unchallenged
Master the Repulsion Gel
Unlocked: Jul 3, 2011 10:36am
Stranger Than Friction
Master the Propulsion Gel
Unlocked: Jul 3, 2011 12:02pm
White Out
Complete the first Conversion Gel test
Unlocked: Jul 3, 2011 1:35pm
Tunnel of Funnel
Master the Excursion Funnel
Unlocked: Jul 3, 2011 12:34pm
Dual Pit Experiment
Do the same test twice
Unlocked: Jul 3, 2011 2:13pm
The Part Where He Kills You
This is that part
Unlocked: Jul 3, 2011 3:06pm
Lunacy
That just happened
Unlocked: Jul 3, 2011 7:17am
Drop Box
Place a cube on a button without touching the cube
Unlocked: Jul 4, 2011 9:59am
Overclocker
Complete Test Chamber 10 in 70 seconds
Unlocked: Jul 4, 2011 10:33am
Pit Boss
Show that pit who's boss
Unlocked: Jul 4, 2011 9:48am
Preservation of Mass
Break the rules in Test Chamber 07
Unlocked: Jul 4, 2011 10:18am
Pturretdactyl
Use an Aerial Faith Plate to launch a turret
Unlocked: Jul 3, 2011 8:42am
Scanned Alone
Stand in a defective turret detector
Unlocked: Jul 3, 2011 8:37am
No Hard Feelings
Save a turret from redemption
Unlocked: Jul 3, 2011 10:15am
Portrait of a Lady
Find a hidden portrait
Unlocked: Jul 9, 2011 11:44am
High Five
Celebrate your cooperative calibration success
Unlocked: Jul 9, 2011 12:55pm
Team Building
Complete all test chambers in the Team Building co-op course
Unlocked: Jul 14, 2011 2:59pm
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
Unlocked: Jul 14, 2011 4:01pm
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked: Jul 15, 2011 3:50pm
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
Unlocked: Jul 17, 2011 12:40pm
You Saved Science
Complete all test chambers in all courses of co-op
Unlocked: Jul 15, 2011 3:12pm
Gesticul-8
Perform all 8 gestures of your own volition in co-op
Unlocked: Dec 14, 2012 2:15pm
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked: Jul 17, 2011 1:11pm
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked: Jul 17, 2011 1:02pm
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
Unlocked: Jul 15, 2011 2:40pm
Air Show
Perform 2 aerial gestures before touching the ground in co-op
Unlocked: Apr 11, 2013 3:20pm
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
Unlocked: Jul 17, 2011 7:02am
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked: Aug 19, 2012 1:22pm
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row
Final Transmission
Find the hidden signal in one of the Rat Man's dens
Good Listener
Take GLaDOS' escape advice
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
Party of Three
Find the hidden companion cube in co-op test chamber
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
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
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course
