DeoffGeoff

With Time to Spare Defeat Stage 4 G with 4+ minutes left until detonation.

Treasure Hunter Using the photo hints, find 2 hidden items.

Wrecking Ball Stop the unstoppable

Truly Infamous Reach full negative Karma.

Confirmed Bachelor Trish Hates You.

Former Adventurer Incapacitate 25 enemies with dodge counter.

Riddle Resolver Solve 85% of Riddler challenges

Free Radical Escape a level 5 police chase

Evil Sphere Bad guys always want more power.

Enforcer Use the Crime Detection System to take down 20 confirmed criminals

True Hero Purchase every positive Karma upgrade for each power.

Evil Finish Beat the game while Infamous.

Broken Umbrella Witness the true ending.

Mano-A-Mano Defeat Titan henchman without using Batarangs (any play mode)

That's a Keeper Meet Charles Rookwood in the Map Chamber

Lost And Found Uncover the secret of Arkham City

Good Samaritan Revive a teammate in a multiplayer match.

Sandstorm We are legion

Pedal to the Metal Travel at 125 mph.

Lights Out Kill 10 multiplayer enemies using your melee attack.

Followed the Butterflies Follow butterflies to a treasure

Adventurer Complete a match in all multiplayer modes.

Roundtable Hold Arrived at Roundtable Hold

The Hunger Bio Leech 100 enemies.

Escapist Survive 10 explosions in multiplayer.

Hide And Seek A deadly game of hide and seek

Magic Smoke Kill 4 enemies within a single instance of Focus

One Slick Super-spy Use only the EMF Visualizer to complete Ada's gameplay segment.

Crack The E Nigma Solve every riddle on the island

Get Off My Cloud Get 100 High Fall take downs.

World's Greatest Detective Spirit of Amadeus Arkham revealed

Sanity Check Collect all 8 Burner Phones

IQ Test Solve the first riddle

Ghost Train Fight for survival

Darkness Looms Complete the final mission of the Missing Persons Investigation

Loom for Improvement Upgrade a piece of gear

Margit, the Fell Omen Defeated Margit, the Fell Omen

Freefall Don't look down

Power Cycle Participate in 5 different City Games

Arkham City Sirens Drop in on an old friend

Petrol Head Drive at least thirty different vehicles.

Exit Stage Right All the world is a stage

Master Blaster Kill 2 multiplayer enemies with a single explosive.

Down Boy! Kill a zip-lining enemy player in multiplayer.

Geolocated Check in at every Hotspot

Monkey Around In multiplayer, escape death 3 times by using the rope ascender.

Revoking Client Privileges Complete the final mission in the Human Traffic Investigation

Peephole Complete every Privacy Invasion

Saturday Night Special Complete the final mission in the Weapons Trade Investigation

Casey Jones Take down 25 enemies while riding on a moving train.