Brainwatched

Great Outdoors Endurance Challenge: Survive for 10 days

The Cat Came Back Break into Riddler's secret hideout and exact your revenge.

A Feast for Two Endurance Co-op Challenge: Eat the meat of 3 bears with your partner

Sweet Revenge Defeated your first murkrift Mirage.

Goromi the Hostess Met the mysterious lady, Goromi.

Vacation Endurance Challenge: Escape the forest after surviving for 7 days

Battering Ram Shield Bash 5 different thugs

All Snug in Their Beds Uncover the secret history of the park.

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)

Frequent Flyer Zip Kick 5 different thugs

Hell of a Sheriff Complete the No Way Out scenario. (No training mode)

Perfect Freeflow 2.0 Perform a perfect combo including all of Batman's combat moves (any play mode)

Higgledy Gaggle! Awarded for getting a set of matching higgledies!

Higgledy Hotshot Awarded for cooking up 50 different higgledies.

Enemy Revealed Defeat the Chaos sorcerer

Arctic Grave Push the chief witness into the ice lake in "Joe's Adventures."

Liberator Liberate three keeps in a single playthrough.

Cooking Up a Storm Awarded for cooking 50 dishes.

Great Haul Endurance Challenge: Escape the forest after surviving 10 days, with at least 10 Relics

Scourge of the Tainted Awarded for defeating 50 tainted monsters.

Invincible Defeat 2,500 enemies in single-player mode.

Feeling the Heat Activated Extreme Heat Mode 10 times.

Operation: Deep Sleep Knocked out 30 people with the Dart Gun

Charted! - Brutal Finish the Game on Brutal Without Changing the Difficulty

Music Buff Awarded for acquiring 30 songbooks.

Skill Dabbler Obtained 10 skills.

Sisters of Athena Endurance Co-op Challenge: Kill a combined total of 25 enemies in a single Expedition

Why Is It Always You Three? Hear all of the Chaplain's dialogues

Ball Boy Awarded for collecting a total of 2,000 balls.

Sisters of Artemis Endurance Co-op Challenge: Kill a combined total of 10 dangerous animals in a single Expedition

Hiroshiman Shadows Completed Chapter 2.

Can I Call You? Successfully asked a hostess out on a date.

Pour Sammy! Fully renovated Sammy's

Dandling Dragon Experienced the trials of raising a baby.

Wide Awake Awarded for being awakened 50 times.

Off the Beaten Path Found a secret passage.

Batter Up! Scored a hit at the batting cages.

A Fighter's Experience Obtained 10,000 total experience points.

No Stone Unturned Awarded for satisfying every single higgledy stone.

Can of Whoop Ass Engaged enemies while a drink's effect is active.

Skill Pro Obtained 25 skills.

A Blade of Memory Destroy all Teeth, Balloons and Jack-In-The-Boxes.

Break of Dawn Discover the true nature of the Aurora device

Maybe You Can Do It Completed 31 items on the Completion List.

Her Secret Life Completed Chapter 4.

Not the Brightest Idea Jumped from a dangerously high place.

Strength of the Dragon Raised Attack to a natural 150.

Land of Opportunity Complete "The Assault on Fort Mercer".

Campaign Silver Obtain 72 medals on the original Arkham City campaigns (as Batman)

Life of the Dragon Raised Health to a natural 150.