There are 51 Trophies that can be collected.

Bronze

Wake Up Call
Survive the manual override

You Monster
Reunite with GLaDOS

Undiscouraged
Complete the first Thermal Discouragement Beam test

Bridge Over Troubling Water
Complete the first Hard-Light Surfaces test

SaBOTour
Make a break for it

Stalemate Associate
Press the button!

Tater Tote
Carry science forward

Vertically Unchallenged
Master the Repulsion Gel

Stranger Than Fiction
Master the Propulsion Gel

White Out
Complete the first Conversion Gel Test

Tunnel of Funnel
Master the Excursion Funnel

Dual Pit Experiment
Do the same test twice

The Part Where He Kills You
This is that part

Pit Boss
Show the pit who's boss

Preservation of Mass
Break the rules in Test Chamber 07

Pturretdactyl
Use an Aerial Faith Plate to launch a turret

Final Transmission
Find the hidden signal in one of the Rat Man's dens

Good Listener
Take GLaDOS' escape advise

Scanned Alone
Stand in a defective turret detector

No Hard Feelings
Save a turret from redemption

Schrodinger's Catch
Catch a blue-painted box before it touches the ground

Ship Overboard
Discover the missing experiment

Door Prize
Examine all the vitrified test chamber doors

Portrait of a Lady
Find a hidden portrait

You Made Your Point
Refuse to solve the first test in Chapter 8

Smash TV
Break 11 test chamber monitors

High Five
Celebrate your cooperative calibration success

Team Building
Complete all test chambers in the Team Building co-op course

Confidence Building
Complete all test chambers in the Mass and Velocity co-op course

Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course

Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course

Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course

Gesticul-8
Perform all 8 gestures of your own volition in co-op

Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op

Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them

Party of Three
Find the hidden companion cube in co-op test chamber

Air Show
Perform 2 aerial gestures before touching the ground in co-op

Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements

Four Ring Circus
Enter 4 different portals without touching the ground in co-op

Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each

Still Alive
Complete Course 4 with neither you nor your co-op partner dying

Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses

Silver

Drop Box
Place a cube on a button without touching the cube

Overclocker
Complete Test Chamber 10 in 70 seconds

Narbacular Drop
Place a portal under your co-op partner while they are gesturing

Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row

Friends List With Benefits
While playing co-op, hug 3 different people on your friends list

Gold

Lunacy
That Just Happened

You Saved Science
Complete all test chambers in all courses of co-op

Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before

Platinum

Portal 2 Platinum Trophy
Collected all other Portal 2 trophies

http://www.ps3trophies.com/forums/trophy-news/59242-portal-2-trophy-list.html

Crazy_Del said:

Who wants to be my co op buddy

You getting the game Skibadee, we are always in co op in almost all games

I will be up for that mate will probably get it Saturday not release day let me no if that is kool.

Crazy_Del said:

skibadee said:
 

Crazy_Del said:

Who wants to be my co op buddy

You getting the game Skibadee, we are always in co op in almost all games

I will be up for that mate will probably get it Saturday not release day let me no if that is kool.

Of course it's cool I'll be busy on Mortal Kombat lol. You up for Red Dead Redemption tomorrow night?

will try & catch you online for some RDR tonight or in the week.