AgentOmegaX

Surprise Attack! Arrive at the objective in File R-07 without being spotted.

Super Collision Course Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Glaivend Basin without using any items!

A Lover, Not a Fighter Successfully complete 10 No Kill battles during story mode.

Cold Corruptions Catch all aberrations in The Pale Reach.

Game Clear: Evil Completed the game on the Evil difficulty setting.

Views From the Abyss STU: Complete "The Spider's Thread" mode.

Rare and Exceptional Purchase Armor, a Charm, or Vanity Gear from Masujiro the Melodious in New Game+.

FINE PLAY! (Opening Boss) Achieve all FINE PLAY! technical bonuses in the Opening Stage boss battle.

Big Game Hunter Obtain all other Midnight Suns Trophies

Apprentice Complete stages 1 to 4

Captain Ephinea (100 titles) Acquired 100 different titles for Malik.
Just a little more! Note: Excludes bonus costume titles.

Barrel of laughs Kill 20 enemies with barrels

Head Trauma Use every type of melee weapon on a zombie

No Damage! Finish any Stage without taking damage.

Bookwyrm This is proof that you've become quite familiar with the Library. How to obtain this is kind of a secret, but if you take the time to do a bit of reading now and then, you should be pleasantly surprised.

Fodra Queen in 60 Seconds Defeated the Fodra Queen in a minute or less.

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Chatterbox Sometimes, after you've found a discovery point or when you're at a save point, you have the opportunity to press L3 to initiate a conversation between your companions. This is proof that you've experienced many Things and had a lot of Opinions about them.

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

So What's Wrong with Taking the Back Streets? Take an alternate route during the Nonstop Debate.

Dark Side Complete zone 21 without rescuing any survivors.

Game Clear: Chaos Completed the game on the Chaos difficulty setting.

Master Silencer Shoot down over 500 white noise.

Mindful Vandalism Place a sticker or a decoration on another player's sackperson.

The Force Complete Zone 18 without upgrading weapons.

Wander and the Forbidden Clear the game in hard difficulty

The Most Famous Hedgehog in the World Have your photos taken in Studiopolis Zone

Aw, Shucks Pick up the Princess 200 times

One with Oblivion Defeated Lambda Theos. Impressive!

Terma-nated Defeated Solomus and the Terma Ten.

Catalog Conqueror STU: Complete all nekomata jobs in "The Spider's Thread" mode.

Test Subjects Use sheep as test subjects in 6 levels

Endangered Lizards Killed all shining lizards

Who Were Those Guys, Again? Defeated Veigue, Reala, and Amber.

1-Upsmanship Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 1)

Climber Reached top of the shrine

Old-Mismatist Collect 50 coins

Reinvent the Weapon Wheel Re-collect all of the weapons on the Weapon Wheel

Mighty Wander Max out stamina bar

Casino Royale with Cheese Own more than 10,000 casino coins.

Flare Wander Defeat an enemy with the Flare Wand from more than 25 blocks away.

Lucky Number Seven Get all 7s on the MonoMono Slots.

Enough Coin to Disappear You survived The Brigmore Witches in low chaos with 10,000 coins

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

King of Redecorating Slap around objects at least 1,000 times.

Super Sphere Destroy 5 enemies within 5 seconds using Chaos Spheres.

Take It Back Parry 20 bullets against a guardian in one fight without game over

Fiery Trial Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Igraine, the Shrine of the Fire Trial, without using any items!

A Gentlemanly Triumph Defeated a true Gentleman. Good show!