LKB1

This! Is! Keystone! Kick an enemy into his death

EXTRA: Phas3r Get Phas3r to level 7.

Big Tournament Completed each of the larger challenges in all 3 coliseums

EXTRA: Astral Stair Reach Level 80 in Inverse Inlaid Library.

Go breaking my heart Collected 9 Tyrant Hearts

Rattle the Hive Bait 10 Ghûl mounds.

Merciful Fossor Bury 100 sets of bones.

It Takes Two to Tango Chain a 40-defeated combo in Team Slayers.

Run the Gauntlet Complete "Desperate Escape" on Professional.

Class-A Ninja Complete game on Normal difficulty

Cuts Like A Knife Collect All Kunai Upgrades

Sphinx' Riddle Complete all 40 of the Catwoman Riddler grid items

Deployment Complete all key Dispatch Missions.

Fool of a Tuck Throw a corpse down the bottomless pit in Catacombs

All in Defeat a boss with at least 20000 unspent experience

Still Tastes Good Endurance Challenge: Eat the meat of 5 wolves that were killed with poison damage

Rough Justice Stop Penguin's escape from GCPD.

“Worlds of Hurt” – Tough Guy Rescued the Little Sister in “Worlds of Hurt” using only plasmids, tonics, the wrench, and the research camera, on Medium or higher difficulty

Army of One Win 15 matches in Slayers.

EXTRA: Chaos Rosalia Find the Chaos Rosalia in Astral Stair.

Lancer Killer Kill a Lancer Big Daddy

Nature Retreat Endurance Challenge: Survive for 7 days

Back In Time... Complete Story Mode 100%

Quan-Tease Unlock Hidden Fighter "Quan Chi"

The Crown Jewel Seek and destroy.

Teacher's Pet You watched all the tutorials! Take a gold star, go to the top of the class.

EXTRA: Trisection Find the Trisection in Astral Stair.

Thunderstruck Perform an S Rank Combo using Alastor

EXTRA: Evolve the Phas3r. Evolve the Phas3r.

Accomplished Complete all missions.

Good Old Days Take a black and white photo of a Gopher riding an Elk

O Mother, Where Art Thou? Have 20 Branded Ghûls at one time.

Tower Apprentice Complete 25 Tower missions

Burning Shadow Shadow Brand 20 Uruks.

Space Ace Shoot at least 70 targets during the ride to Tau Volantis.

To the Face! Reflect 20 missiles back at AT-MPs.

Eternal Ascent Die and return in the Tower

Nom Nom Nom! Eat a captain with a Wretched Graug.

Fight To The Last - Kill 1500 Helghast Killed 1500 Helghast

Electric Lawnmower Kill 30 enemies using an electrified Ripper blade.

Now It Can't Hurt You Anymore What would happen if you cross a bridge with a fire shield?

Challenger Complete one challenge and receive at least a Bronze medal.

The Most Dangerous Game Defeat all the Beastmaster Warchiefs.

Lunch Break Take a sepia photo of a Squirrel eating an acorn

EXTRA: Astral Stair Map Find the Astral Stair Map.

Ghost Busted Beat a friend's ghost in a Race or Hot Lap event who currently sits above you in the leaderboards.

Brush with Death Wake up after the missile strike.

Oniomaniac Buy all the items in a store.

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

Succession Plans Break into Hell's Gate HQ and apprehend Two-Face.