AHU-Gamechanger

Somewhere Over the Rainbow Collect 25 Rainbow Stars from the Mystery Portal

So Many Choices Purchase all abilities for all character classes.

Fisherman Catch 10 different fish.

Mountaineer Climb 600m distance

Top Cat Obtain Zaphyra's form

Falling With Style Complete a set of chain pads without making a mistake

Obsessive Compulsive Reach 100% Completion in the Campaign

War's Begun Complete Blue Lagoon

Change Once, Then Die In the Epilogue, defeat the Shapeshifter with only one shape change.

Complete: Keegan Complete Mission on any difficulty: Keegan

Thousand Throws Throw a thousand projectiles.

80% of the time, I hit every time Complete a mission with over 300 shots fired and 80% accuracy or better.

Velocity Rising Star Unlock additional events in 'Velocity'.

Apex Contender Unlock the 'Apex' Trophy event.

Hostages Secured Save the hostages in the Transit Yards

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

Precision Strike Kill 500 Monsters with Magic Arrow or Sniper Shot - Elf

Vacation Plans Complete Chapter 7: Forest Laboratory

Blink and You'll Miss Him Obtain Neko Suke's form

Fallen Idols In Heroes mode, eliminate 4 Heroes in one game.

Pacifist Win an action race without firing any weapons

Shotgun Expert Kill 250 People using shotguns (ranked play counts).

Spiked Punch Avoid a spike strip in a Pursuit and successfully evade in Career

Destroyer of a Thousand Destroy a thousand enemies.

Star Attraction: 200 Stars Earn a total of 200 stars.

Infiltration Operator Complete all 4th Echelon Missions from Anna Grímsdóttir

Slippery Slope Complete the "Black Ice" Special Ops mission on any difficulty.

Grateful Eight Complete a mission with each of the original Cleaners.

Good Samaritan Accept and complete 50% of all missions

Nickel and Dimes Complete the Nickel sequence in mission 'Payback'

Defending the Ark Complete Defending the Ark

Come fly with me Take a Meep creature for a flight for at least 10 seconds.

Any Old Iron Destroy 500 enemy robots

The Collector Complete The Collector

Lead Interrogator Win the COOP interrogation in VORON Station

2 Birds, 1 Stone Complete the mission 'Double Trouble'

Light Up the Sky Light Up the Sky - Destroy 25 targets with the Ark's AA guns

Redline Champion Win the 'Redline' Trophy event on gold star difficulty.

Friend of the Rock Dragon Complete Flight to the Swamp

Robot Wars Defeat the Big Bot

Islands in the Sky Complete The Ancient Repository

Complete: Epicenter Complete Mission on any difficulty: Epicenter

Pull the Plug Remove the Power Battery without destroying any of the sentry turrets

Beyond the Autobahn Drive 12,718km in total - the length of all Germany's Autobahns combined.

Hired Goons Takeout all the 'Goons' in Career

Retired Finish the Career Story

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

Between Hay and Grass Finish the game on at least medium difficulty.

Power of Covetousness Fulfilled all pacts for Desire.

Tri-Rotor Functionality Disable a security device using the Tri-Rotor