StinkyDEM

Unseen Assassin Assassinate a Target without getting spotted.

Old school Finish all the "Back to Origins" paintings

T-Bone: No Easy Fix Complete Act 2

I'm not Robin Hood Complete Arrow level after achieving True Hero status

Good One, Babe Watch Deathtrap kill 50 enemies.
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Time to Shine Reach Hero Level 50 and purchase all skills for any Hero

No Photographs, Please! Killed 10 SpyBugs before they took your photo.

Pizza Party! Complete The Squad level

It's simple... Defeat Batman (Dark Knight Trilogy) as the Joker (Nurse) character

Playing Favorites You must set a character as your favorite! Can't decide who to choose? Niiihehehe! Well, you can't go wrong with Lord Bison!

Way of the warrior Complete the game as Warrior

Accomplished Clear all missions (including Side Ops and Extra Ops)

Groundbreaking Use every interactable and win in a multiplayer match

Master Zoologist You tamed all of the domesticable creatures on the ARK!

Heart Whispers Using the Heart, listen to the secrets of 40 different people

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

Cage of Arrogance Cracked Completed the Osaka Jail.

Cute Loot Kill a Chubby.

Level not complete! Complete Bizarro level

Team Arrow Set both Free Play characters as John Diggle and Felicity Smoak

Ryu Ga Gotoku Reached level 70 with Kasuga.

The Grand Tour Complete "The Grand Tour"

Pour Sammy! Fully renovated Sammy's

Acrobat Eliminate 10 enemies with Drop Assassination

Beta Ascension You Ascended off the ARK, at Beta level!

Repentant Fang Obtained all Master Arts for Wolf.

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

Extra strong Upgrade the Health Potions

Survival of the Fittest Complete all waves in a survival session

The Promised Land Get 100% share in any area.

Eye for Talent Spent Persona Points to strengthen a Persona's stats.

Spicy Boy Defeat Haderax the Invincible.

Hull: Improved Upgrade to the 2nd tier hull.

Humanity's Companion Completed the Jail of the Abyss.

Master Chef Cooked 12 types of food.

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

A Newfound Heart Sophia found strength of heart.

Treasure Hunter Opened 50 treasure chests.

T-Bone: Pest Control Complete Act 3

Grounded Scaler Defeat Colossus 8 Before it can Turn Back Over

Superior Archery Skills Defeat 20 enemies on the Island by using a bow and arrow weapon

ADAM Addict Resolve all the Little Sisters in Minerva's Den

Business Etiquette 101 Impress Oda with your perfect manners.

Walk Your Own Path Completed the Tree of Knowledge.

So Much Blood! Gunzerk continuously for 90 seconds.

Against all odds Defeat any Boss without taking damage

Master Thieves Obtained all Master Arts for all characters.

Cruel Heat Keep your Haste burn meter above 50% for 10 seconds.

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

Know Your Enemy Hit the enemy's weakness 300 times.