Portal 2
You Saved Science
Complete all test chambers in all courses of co-op
Earned on 2012-01-03 16:34:36
Lunacy
That just happened
Earned on 2011-04-28 16:35:45
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row
Earned on 2012-01-03 16:34:36
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
Earned on 2012-01-03 16:34:36
Drop Box
Place a cube on a button without touching the cube
Earned on 2012-01-03 16:34:36
Overclocker
Complete Test Chamber 10 in 70 seconds
Earned on 2012-01-03 16:34:36
Team Building
Complete all test chambers in the Team Building co-op course
Earned on 2012-01-03 16:34:36
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
Earned on 2012-01-03 16:34:36
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
Earned on 2012-01-03 16:34:36
High Five
Celebrate your cooperative calibration success
Earned on 2012-01-03 16:34:36
You Made Your Point
Refuse to solve the first test in Chapter 8
Earned on 2012-01-03 16:34:36
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
Earned on 2012-01-03 16:34:36
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Earned on 2012-01-03 16:34:36
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
Earned on 2012-01-03 16:34:36
Still Alive
Complete Course 4 with neither you nor your co-op partner dying
Earned on 2012-01-03 16:34:36
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Earned on 2012-01-03 16:34:36
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
Earned on 2012-01-03 16:34:36
Air Show
Perform 2 aerial gestures before touching the ground in co-op
Earned on 2012-01-03 16:34:36
Party of Three
Find the hidden companion cube in co-op test chamber
Earned on 2012-01-03 16:34:36
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Earned on 2012-01-03 16:34:36
Gesticul-8
Perform all 8 gestures of your own volition in co-op
Earned on 2012-01-03 16:34:36
Final Transmission
Find the hidden signal in one of the Rat Man's dens
Earned on 2012-01-03 16:34:36
Pturretdactyl
Use an Aerial Faith Plate to launch a turret
Earned on 2012-01-03 16:34:36
Preservation of Mass
Break the rules in Test Chamber 07
Earned on 2012-01-03 16:34:36
Pit Boss
Show that pit who's boss
Earned on 2012-01-03 16:34:36
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
Earned on 2012-01-03 16:34:36
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Earned on 2012-01-03 16:34:36
Vertically Unchallenged
Master the Repulsion Gel
Earned on 2011-04-28 16:35:45
Tater Tote
Carry science forward
Earned on 2011-04-28 16:35:45
Stalemate Associate
Press the button!
Earned on 2011-04-28 16:35:45
SaBOTour
Make a break for it
Earned on 2011-04-28 16:35:45
Bridge Over Troubling Water
Complete the first Hard-Light Surfaces test
Earned on 2011-04-28 16:35:45
Stranger Than Friction
Master the Propulsion Gel
Earned on 2011-04-28 16:35:45
White Out
Complete the first Conversion Gel test
Earned on 2011-04-28 16:35:45
No Hard Feelings
Save a turret from redemption
Earned on 2011-04-28 16:35:45
Scanned Alone
Stand in a defective turret detector
Earned on 2011-04-28 16:35:45
Good Listener
Take GLaDOS' escape advice
Earned on 2011-04-28 16:35:45
The Part Where He Kills You
This is that part
Earned on 2011-04-28 16:35:45
Dual Pit Experiment
Do the same test twice
Earned on 2011-04-28 16:35:45
Tunnel of Funnel
Master the Excursion Funnel
Earned on 2011-04-28 16:35:45
Wake Up Call
Survive the manual override
Earned on 2011-04-21 16:35:45
Undiscouraged
Complete the first Thermal Discouragement Beam test
Earned on 2011-04-21 16:35:45
You Monster
Reunite with GLaDOS
Earned on 2011-04-21 16:35:45
