SDTIM

Perfectionist Kill a boss without receiving damage.

First Step Earn 3 Stars on any level in Adventure Mode

Don't make me pull the trigger! Survive for 5 minutes in Demolition mode

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

Bloody Lust Kill Isaac with Samson

Magic Socket Obtain the Magic Socket artifact.

A Time of Wood and Stone Gathered the lost lore of Cadash Thaig ("Witch Hunt" downloadable content)

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.

Hard pressed Complete all levels on Hard

Head Trauma Use every type of melee weapon on a zombie

Oni Armory Acquire all Oni Armaments.

The Traveller Acquired all trophies.

Compulsive Hoarder Obtain at least 100 hidden treasure items.

Determined Don't use any hints to finish the game.

Ancient Mastery Upgrade The Book of Rea 15 times.

True Completionist Cleared all areas on hard difficulty!

Hismar the Berserk Dragon Defeated Hismar.

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.

A Blank Card Kill Isaac with Eden

Supernova Get 3 stars on each of the first 14 Echoes

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

For the Love of Dog Rescue all the Lion Dogs.

Guardians of Morta Defeat OU in Main Story.

Back in Action Perform 10 revivals.

Go Figure Plant ShadowChild's figurine.

One with Oblivion Defeated Lambda Theos. Impressive!

Burning Inside Kill another player with Crucible in a Foundry Versus Match

No Job Too Small Complete all Chance Encounters.

Tool of the Netherworld Obtained Charon's Chains.

Terma-nated Defeated Solomus and the Terma Ten.

A More Perfect Union Finish what you started.

Help Desk Get the Blade lobby desk clerk to help you bypass security.

Real men don't need a map Just in case you picked up a shielding map

Faded Memories Defeated Reese.

Traces of Two Learned of Andell and Seona's story.

Size Matters Not Complete the opening stage of Mega Man X2 with a full energy gauge.

Too Late Complete Junktown

Seeing Red Find Monika

Orb of Delusion Obtain the Orb of Delusion artifact.

Challenger of the Rift Completed a floor of the rift labyrinth.

Richie Rich Have 20000 Morv.

Perfect Putting Successfully perform a putt within par that travels for
over 30ft in a recorded official round

$#!&'s Getting Science Complete Case 3 of the Story

Damage Control Earn an A Rank in all 5 rescue missions

Extract The Data... Get the data that Pritchard is after from within the Palisade Blade.

Expose The Truth! Decide what to do with the evidence you uncovered.

Killer at the Gate of Dawn Cleared all episodes on Normal Mode.

Valedictorian Achieve an Overall Evaluation grade of A

Golden Idol Perform every Single Player Skillshot in the game

Cook Cook 10 different recipes.