Skillz_Optional

Forever Marked Progress the story to unlock.

Friends with Death Die 100 times

Camper Use the camp at least 25 times.

Recordkeeper Collect all of the notes and memos on Monkey Island™.

Let's go shopping Use every item at least once

David vs Goliath In Checkmate, destroy the APC using an RC-XD

An Ounce of Prevention Obtained all equipment.

Bathhouse Complete the puzzle at the Bathhouse.

All Star Get 100 Stars in S.T.A.R. Lab Mode

A Man of Principle Complete the SAM'S STORY chapter earning the Captain's full trust.

Blood Bank Kill 10,000 enemies

The Bigger They Are... Destroy a total of 100 Custom Cyborgs during story mode.

Things That Go Ka-Boom Learn how to craft Exploding Arrows

Teabag a D-Bag Taunt a dead opponent with Quagmire in Multiplayer

Helo Hat Trick Destroy each objective helicopter in 'Reactor' with a different Armament

Magnus of the Order Elite Get all other trophies

Everybody Loves Ryoma Completed all Bonds.

Steamed Vegetable Kill a Hermit with fire while it is still armored.

Kerouac Has Nothing on You! Take down all of the barriers
blocking the main road.

Light adept Learn all Light spells

Rapid Reflexes Get 5 Headshot Kills during a single use of the Adrenaline Stim in Campaign

Light of Cernos Collect all the Elk lightstones.

Feeling So High Sliced an enemy upward and finished it in the air.

Electric Whisper Learn how to craft Electric Arrows

Tomb Raider Go through cemetery in less than 3 minutes.

Tomb Raider Collect all relics, artifacts and weapons

Retribution Dealt with the mercenaries that killed the Vael family. ("The Exiled Prince" downloadable content)

Bane of Thedas Handed victory to the archdemon by killing Ferelden's last Grey Warden. ("Darkspawn Chronicles" downloadable content)

Snow Angel Execute the forest sniper in 'Frozen Tundra' with a takedown

Hitchhiker Defuse the bomb on the truck in 'Gora Dam' while it is in motion

It's just a scratch Complete THE TWO COLONELS Chapter without using any Medkits on Normal or higher difficulty.

Fundamental Principles Amended the Constitution 6 times in a single game

Lock and load Learn all shooting improvements

Great Owl Find all the Night Hunters' secret stashes in the SAM'S STORY chapter.

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Pacesetter Completionist Gain all stars in 'Pacesetter'.

Gift of the Elk Spirit Obtain the Gift of the Elk Spirit.

Salute Me Achieve the rank of Lieutenant.

Safari Tour Play at least one full round in every Official Map (Ranked Match)

Target Score Sampler! Beat the target score in any Chapter (Points Count Mode).

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

Legendary Detective Beat the main story on the highest difficulty.

TownGo Whale Completed all of TownGo's Shop Missions.

Beware the Words of the Mad... See all of the endings of
Pandemonium of the Oboro Blade.

Cold Hike Reach the old fortress.

Great Secret Seeker Discover 30 lanterns.

Brilliant Shoulder Throw Used "Just Guard" 100 times.

Stunning! Pigsy's Perfect 10: Stun 5 enemies using one single EMP device.

Super Slide Slide 400 meters down a steep slope.

Time Master Completed Singularity on Hard Mode