| Pit Boss | 30 | |
| Show that pit who's boss | ||
| Preservation of Mass | 20 | |
| Break the rules in Test Chamber 07 | ||
| Pturretdactyl | 5 | |
| Use an Aerial Faith Plate to launch a turret | ||
| Lunacy | 20 | |
| That just happened | ||
| Drop Box | 20 | |
| Place a cube on a button without touching the cube | ||
| Overclocker | 30 | |
| Complete Test Chamber 10 in 70 seconds | ||
| No Hard Feelings | 10 | |
| Save a turret from redemption | ||
| Schrodinger's Catch | 20 | |
| Catch a blue-painted box before it touches the ground | ||
| Ship Overboard | 10 | |
| Discover the missing experiment | ||
| Final Transmission | 20 | |
| Find the hidden signal in one of the Rat Man's dens | ||
| Good Listener | 5 | |
| Take GLaDOS' escape advice | ||
| Scanned Alone | 5 | |
| Stand in a defective turret detector | ||
| The Part Where He Kills You | 20 | |
| This is that part | ||
| Bridge Over Troubling Water | 10 | |
| Complete the first Hard Light Bridge test | ||
| SaBOTour | 10 | |
| Make a break for it | ||
| Stalemate Associate | 15 | |
| Press the button! | ||
| Wake Up Call | 5 | |
| Survive the manual override | ||
| You Monster | 5 | |
| Reunite with GLaDOS | ||
| Undiscouraged | 10 | |
| Complete the first Thermal Discouragement Beam test | ||
| White Out | 15 | |
| Complete the first Conversion Gel test | ||
| Tunnel of Funnel | 15 | |
| Master the Excursion Funnel | ||
| Dual Pit Experiment | 15 | |
| Do the same test twice | ||
| Tater Tote | 15 | |
| Carry science forward | ||
| Vertically Unchallenged | 15 | |
| Master the Repulsion Gel | ||
| Stranger Than Friction | 15 | |
| Master the Propulsion Gel | ||
| Professor Portal | 75 | |
| After completing co-op, complete Calibration Course online with a friend who hasn’t played before | ||
| Air Show | 20 | |
| Perform 2 aerial gestures before touching the ground in co-op | ||
| Portal Conservation Society | 20 | |
| Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements | ||
| Empty Gesture | 25 | |
| Drop your co-op partner in goo while they are gesturing by removing the bridge under them | ||
| Party of Three | 25 | |
| Find the hidden companion cube in co-op test chamber | ||
| Narbacular Drop | 25 | |
| Place a portal under your co-op partner while they are gesturing | ||
| Asking for Trouble | 10 | |
| Taunt GLaDOS in front of a camera in each of the five co-op courses | ||
| Rock Portal Scissors | 20 | |
| Win 3 co-op games of rock-paper-scissors in a row | ||
| Friends List With Benefits | 50 | |
| While playing co-op, hug 3 different people on your friends list | ||
| Four Ring Circus | 25 | |
| Enter 4 different portals without touching the ground in co-op | ||
| Triple Crown | 15 | |
| Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each | ||
| Still Alive | 15 | |
| Complete Course 4 with neither you nor your co-op partner dying | ||
| Can't Touch This | 10 | |
| Dance in front of a turret blocked by a hard light bridge in co-op | ||
| Smash TV | 75 | |
| Break 11 test chamber monitors | ||
| High Five | 5 | |
| Celebrate your cooperative calibration success | ||
| Team Building | 10 | |
| Complete all test chambers in the Team Building co-op course | ||
| Door Prize | 20 | |
| Examine all the vitrified test chamber doors | ||
| Portrait of a Lady | 10 | |
| Find a hidden portrait | ||
| You Made Your Point | 10 | |
| Refuse to solve the first test in Chapter 8 | ||
| You Saved Science | 100 | |
| Complete all test chambers in all courses of co-op | ||
| Iron Grip | 20 | |
| Never lose a cube in Chamber 6 of the Mass and Velocity co-op course | ||
| Gesticul-8 | 15 | |
| Perform all 8 gestures of your own volition in co-op | ||
| Confidence Building | 10 | |
| Complete all test chambers in the Mass and Velocity co-op course | ||
| Bridge Building | 15 | |
| Complete all test chambers in the Hard-Light Surfaces co-op course | ||
| Obstacle Building | 15 | |
| Complete all test chambers in the Excursion Funnels co-op course |
Portal 2 - Xbox 360 Achievements
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Last updated by Machina, 20th August
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