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