Bullstomp

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

Drei Vier Grenadier Kill 4 enemies with the Trench Raider Elite Class

What's a King to a God? Escape Pagan's mind at Mind Level 5

Firefighter Perform a melee kill on a Flametrooper Elite

Queenslayer Complete Special Operation: Puerta del Edén on Mastery 3 difficulty

Walking the Path Escape Joseph's mind at Mind Level 5

Heavenly Father Unlock all of Joseph's traits in the Mirror

Maître d'Armes Perform one kill with each of the 5 primary Weapon Assignments weapons

Purifying Majin The Majin acquires "purification" ability

Ixtab Defeated Defeat Ixtab

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

King of the Darkness Defeated Defeat the "Creator of All Darkness"

Ultimate Purification Power The Majin's "purification" ability rises to maximum

Charged into Battle Kill 25 enemies with the Lance as Cavalry

Ultimate Strength The Majin's "strength" ability rises to maximum

Ultimate Flame Power The Majin's "flame" ability rises to maximum

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

Keep on Truckin' If you want to focus on nothing but the fight, entering an Endless Battle is for you!

Robin Hood Theory Score 10 headshots on Rais's men with a bow

Sneak Master Defeat 50 enemies with sneak attacks

Lightning God Defeat over 10 enemies with a lightning finish attack

Treasure Hunter Open all treasure chests

Peace in Q'umarkaj Go to the true ending

Cosplay Master Get all costumes

Rough Seas Perform a roadkill in a Sea Vehicle

The Power in These Waters Kill 15 enemies with the L-Class Destroyer

Trap Master Defeat over 30 enemies with traps

Majin Knight Help the Majin out when he's in trouble 30 times.

Advanced Studies Perform 1 kill with the Livens Projector

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

Finish Master Defeat more than 50 enemies with finish attacks

Flyswatter Destroy 5 airplanes while in the Behemoth Airship L30

Wind God Defeat over 10 enemies with a wind finish attack

Purification God Defeat over 10 enemies with a purification finish attack

Flame God Defeat over 10 enemies with a flame finish attack

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

Combination Master Defeat 300 enemies with combination attacks

Modern Technology Perform 1 kill with the Broken Bottle

Brave One Raise Friendship level and Tepeu's level to max

Platinum! You've acquired all the Majin and the Forsaken Kingdom™ trophies!

Filled the Stockpile Perform a kill with all "In the Name of the Tsar" weapon variants

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

Weapons of the Apocalypse Perform a kill with all "Apocalypse" weapon variants

Naval Weapons Collection Perform a kill with all "Turning Tides" weapon variants

One-Four-One Complete the "Kill Switch" Special Ops mission on any difficulty.

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

Mighty Minotaur Take out 10 Defense Units with melee attacks in one run of The Maze

Sun Striker Take out 20 Defense Units in one run of Death by Darkness

Back Home Escape the Encasement with Fai's help

Intergalactic Mechanic Collect all 5 Vessel Shards