|
Air Show (20) |
Perform 2 aerial gestures before touching the ground in co-op |
|
Asking for Trouble (10) |
Taunt GLaDOS in front of a camera in each of the five co-op courses |
|
Bridge Building (15) |
Complete all test chambers in the Hard-Light Surfaces co-op course |
|
Bridge Over Troubling Water (10) |
Complete the first Hard Light Bridge test |
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Can't Touch This (10) |
Dance in front of a turret blocked by a hard light bridge in co-op |
|
Confidence Building (10) |
Complete all test chambers in the Mass and Velocity co-op course |
|
Door Prize (20) |
Examine all the vitrified test chamber doors |
|
Drop Box (20) |
Place a cube on a button without touching the cube |
|
Dual Pit Experiment (15) |
Do the same test twice |
|
Empty Gesture (25) |
Drop your co-op partner in goo while they are gesturing by removing the bridge under them |
|
Final Transmission (20) |
Find the hidden signal in one of the Rat Man's dens |
|
Four Ring Circus (25) |
Enter 4 different portals without touching the ground in co-op |
|
Friends List With Benefits (50) |
While playing co-op, hug 3 different people on your friends list |
|
Gesticul-8 (15) |
Perform all 8 gestures of your own volition in co-op |
|
Good Listener (5) |
Take GLaDOS' escape advice |
|
High Five (5) |
Celebrate your cooperative calibration success |
|
Iron Grip (20) |
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course |
|
Lunacy (20) |
That just happened |
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Narbacular Drop (25) |
Place a portal under your co-op partner while they are gesturing |
|
No Hard Feelings (10) |
Save a turret from redemption |
|
Obstacle Building (15) |
Complete all test chambers in the Excursion Funnels co-op course |
|
Overclocker (30) |
Complete Test Chamber 10 in 70 seconds |
|
Party of Three (25) |
Find the hidden companion cube in co-op test chamber |
|
Pit Boss (30) |
Show that pit who's boss |
|
Portal Conservation Society (20) |
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements |
|
Portrait of a Lady (10) |
Find a hidden portrait |
|
Preservation of Mass (20) |
Break the rules in Test Chamber 07 |
|
Professor Portal (75) |
After completing co-op, complete Calibration Course online with a friend who hasn’t played before |
|
Pturretdactyl (5) |
Use an Aerial Faith Plate to launch a turret |
|
Rock Portal Scissors (20) |
Win 3 co-op games of rock-paper-scissors in a row |
|
SaBOTour (10) |
Make a break for it |
|
Scanned Alone (5) |
Stand in a defective turret detector |
|
Schrodinger's Catch (20) |
Catch a blue-painted box before it touches the ground |
|
Ship Overboard (10) |
Discover the missing experiment |
|
Smash TV (75) |
Break 11 test chamber monitors |
|
Stalemate Associate (15) |
Press the button! |
|
Still Alive (15) |
Complete Course 4 with neither you nor your co-op partner dying |
|
Stranger Than Friction (15) |
Master the Propulsion Gel |
|
Tater Tote (15) |
Carry science forward |
|
Team Building (10) |
Complete all test chambers in the Team Building co-op course |
|
The Part Where He Kills You (20) |
This is that part |
|
Triple Crown (15) |
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
|
Tunnel of Funnel (15) |
Master the Excursion Funnel |
|
Undiscouraged (10) |
Complete the first Thermal Discouragement Beam test |
|
Vertically Unchallenged (15) |
Master the Repulsion Gel |
|
Wake Up Call (5) |
Survive the manual override |
|
White Out (15) |
Complete the first Conversion Gel test |
|
You Made Your Point (10) |
Refuse to solve the first test in Chapter 8 |
|
You Monster (5) |
Reunite with GLaDOS |
|
You Saved Science (100) |
Complete all test chambers in all courses of co-op |
