| Wake Up Call | Not Achieved | Survive the manual override | |
| You Monster | Not Achieved | Reunite with GLaDOS | |
| Undiscouraged | Not Achieved | Complete the first Thermal Discouragement Beam test | |
| Bridge Over Troubling Water | Not Achieved | Complete the first Hard Light Bridge test | |
| SaBOTour | Not Achieved | Make a break for it | |
| Stalemate Associate | Not Achieved | Press the button! | |
| Tater Tote | Not Achieved | Carry science forward | |
| Vertically Unchallenged | Not Achieved | Master the Repulsion Gel | |
| Stranger Than Friction | Not Achieved | Master the Propulsion Gel | |
| White Out | Not Achieved | Complete the first Conversion Gel test | |
| Tunnel of Funnel | Not Achieved | Master the Excursion Funnel | |
| Dual Pit Experiment | Not Achieved | Do the same test twice | |
| The Part Where He Kills You | Not Achieved | This is that part | |
| Lunacy | Not Achieved | That just happened | |
| Drop Box | Not Achieved | Place a cube on a button without touching the cube | |
| Overclocker | Not Achieved | Complete Test Chamber 10 in 70 seconds | |
| Pit Boss | Not Achieved | Show that pit who's boss | |
| Preservation of Mass | Not Achieved | Break the rules in Test Chamber 07 | |
| Pturretdactyl | Not Achieved | Use an Aerial Faith Plate to launch a turret | |
| Final Transmission | Not Achieved | Find the hidden signal in one of the Rat Man's dens | |
| Good Listener | Not Achieved | Take GLaDOS' escape advice | |
| Scanned Alone | Not Achieved | Stand in a defective turret detector | |
| No Hard Feelings | Not Achieved | Save a turret from redemption | |
| Schrodinger's Catch | Not Achieved | Catch a blue-painted box before it touches the ground | |
| Ship Overboard | Not Achieved | Discover the missing experiment | |
| Door Prize | Not Achieved | Examine all the vitrified test chamber doors | |
| Portrait of a Lady | Not Achieved | Find a hidden portrait | |
| You Made Your Point | Not Achieved | Refuse to solve the first test in Chapter 8 | |
| Smash TV | Not Achieved | Break 11 test chamber monitors | |
| High Five | Achieved | Celebrate your cooperative calibration success | 808 days 16 hours ago |
| Team Building | Achieved | Complete all test chambers in the Team Building co-op course | 808 days 16 hours ago |
| Confidence Building | Not Achieved | Complete all test chambers in the Mass and Velocity co-op course | |
| Bridge Building | Not Achieved | Complete all test chambers in the Hard-Light Surfaces co-op course | |
| Obstacle Building | Not Achieved | Complete all test chambers in the Excursion Funnels co-op course | |
| You Saved Science | Not Achieved | Complete all test chambers in all courses of co-op | |
| Iron Grip | Not Achieved | Never lose a cube in Chamber 6 of the Mass and Velocity co-op course | |
| Gesticul-8 | Not Achieved | Perform all 8 gestures of your own volition in co-op | |
| Can't Touch This | Not Achieved | Dance in front of a turret blocked by a hard light bridge in co-op | |
| Empty Gesture | Not Achieved | Drop your co-op partner in goo while they are gesturing by removing the bridge under them | |
| Party of Three | Not Achieved | Find the hidden companion cube in co-op test chamber | |
| Narbacular Drop | Not Achieved | Place a portal under your co-op partner while they are gesturing | |
| Professor Portal | Not Achieved | After completing co-op, complete Calibration Course online with a friend who hasn’t played before | |
| Air Show | Achieved | Perform 2 aerial gestures before touching the ground in co-op | 808 days 15 hours ago |
| Portal Conservation Society | Not Achieved | Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements | |
| Four Ring Circus | Not Achieved | Enter 4 different portals without touching the ground in co-op | |
| Triple Crown | Not Achieved | Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each | |
| Still Alive | Not Achieved | Complete Course 4 with neither you nor your co-op partner dying | |
| Asking for Trouble | Not Achieved | Taunt GLaDOS in front of a camera in each of the five co-op courses | |
| Rock Portal Scissors | Not Achieved | Win 3 co-op games of rock-paper-scissors in a row | |
| Friends List With Benefits | Not Achieved | While playing co-op, hug 3 different people on your friends list | |
| Talent Show | Not Achieved | Never lose a cube in Chamber 6 of the Mobility Gels co-op course | |