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