Arkynomicon

Ghosts of the Past Face all of Carver’s demons by completing all Co-Op only optional missions.

Iron Will You faced your own demons and gave no ground to them.

The Phantom Philatelist Traded in stamps while in Mementos.

Guardian Do not allow any friendly armor to be destroyed during Act 3-5.

Stargazer Unlock 15 astrariums in a single playthrough.

“Worlds of Hurt” – Expert Rescued the Little Sister in “Worlds of Hurt” in under 15:00, on Medium or higher difficulty

Wild Card Completed Wild Card.

It Takes Two Defeat 3 foes using co-op moves with Oda or Tachibana.

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Up to the Challenge 1 Complete 10 challenges.

Museum of Vanity: Repossessed Completed the museum Palace.

Talk of the Town Get over 1,000 fans in any area.

Auld Lang Syne Destroy two enemy robots who have been distracted by a cigarette.

Decrypted Complete Jackal Canyon in the Campaign

Fisher is the Other Sam Proceed on the monorail in Act 3-4 without being spotted by the enemy troops or searchlights.

Touch And It Will REALLY Hurt Counter three enemy attacks consecutively with the Moon of Mahaa-Kalaa equipped.

Special Class-A Complete game on Hard difficulty

I Felt Your Presence Witness the cult's meeting

Hang 'em High! Kill 30 enemies while they're suspended in the air with the grappling hook.

Invincible Warrior Kill 50 enemies in a row with inventory weapons without losing health.

Regal Completely upgrade one throne.

A Grand Experiment Performed an Electric Chair execution.

Taste of Victory Win an event (no teams)

Master Builder Craft an item from Tier 4 materials in all non-masterwork slots in single-player mode.

Instigator Start a Spectated Arena Fight in a Settlement

Death From Above Completed "Death from Above"

Platinum Congratulations!

Gladiator school Survive 15 consecutive waves with each of the 4 characters.

Hey, not too rough Finish the Campaign on any difficulty

Demonslayer Defeat 1,000 demons in single-player mode.

Creative Space You took a weird detour through your imagination.

Trash Into Treasure Sold old clothing at Furugi no Neuchi.

Getting the Vapors Couldn't take the heat in the bathhouse.

Running Up the High Score Complete Extra Life Mode with 10 Extra Lives in your Inventory

The Deviated Cognition Encountered a deviation in Mementos.

Hitting the Bottle Suffer the full force of Reina's attack.

Overcoming the Nemesis Defeat Nemesis

The Purpose of a Thief Obtained a Treasure Demon.

Persuasive Acquire 10 Inquisition agents in a single playthrough.

Easy Money Won the lottery.

Home Sweet Home Complete "Home Sweet Home"

It's Showtime! Performed a Showtime attack.

Sphere Master Complete a Sphere Grid for one character

Dartslinger Played a game of darts.

On Burning Wings Recruit a powerful ally to even the score.

Fresh Meat Complete a public Road RAGE match

Call Me Go on a date with a girl you met at the telephone club.

No Gods, No Masters Completed No Gods, No Masters.

Accident-Prone Performed an execution during a Fusion Alarm.

Power Play Complete "Power Play"