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Arkham City Sirens Drop in on an old friend

Kids Just Don't Understand Completed Episode 13.

Master Blaster Kill 2 multiplayer enemies with a single explosive.

Down Boy! Kill a zip-lining enemy player in multiplayer.

Bacon! Kill a razorback boar using a Molotov cocktail

With Great Power Comes Greater Power Unlock and purchase all powers.

Awakening Complete "PROLOGUE: AWAKENING" mission.

Tonic Collector Collect or Invent 58 Tonics in the Physical, Engineering and Combat tracks

Freefall Don't look down

Casual Girl Ordered a pizza, watched some TV and wore something casual.

Found Cohen's Room The player has entered Sander Cohen's personal quarters

The Lost Tribe Completed Episode 14.

Lubed up Complete the slide in the Statue of Apollo without dying

Monkey Around In multiplayer, escape death 3 times by using the rope ascender.

Exit Stage Right All the world is a stage

Memories of Another World Completed Episode 15.

Diamond Hard You cleaned out Vangelico to pay back Martin Madrazo.

First Kills Are Special Defeat a zombie.

Children of the Past Completed Episode 16.

Tag Teamed Hit 100 Enemies with the Oath Stone of Orkos

That's a Knife! Fully upgrade the knife

Safe and Secure Perform all Social Club missions in a district.

Quiet Time Find the best seat in the house

Don’t Go - Easy Finish Left Behind on Easy

Research PhD Max out all possible research

Ding! Champion Earned level 50

The Chosen Few Uncover the remains of all Jacob's disciples

Patron of the Arts Watch a play in the Café Théâtre.

Fading Light Completed Episode 17.

Brick Master Win the brick throwing contest

Don't Need It Drop 20 Money Pouches in the streets.

Total Party Kill Kill 5 enemies with friendly fire

Chain Gang Perform the Serpent's Fury 3 times

If it ain't broke... Reconstruct all of the Decayed Chests

Ransacking Versailles Earn 100% completion of Versailles.

In Love with Ryan Slept with Ryan.

Thread the Past Restore 5 vestige outfit pieces

To the Nines Restore and equip a matching vestige outfit

Avid Inventor Successfully invent at least 100 items

Can't Stop, Won't Stop. BadBoy! Perform a 1000 Hit Combo

A Long Journey Begins Completed "The Man with the Guardian Spirit".

Artilleryman Kill 20 enemy players in multiplayer using a turret.

Up to the Challenge Complete 5 Challenges

Laying Down the Law Kill 6 enemies with the Revolver without reloading

Adreaux On Call Completed Episode 18.

Pain Builds Character Finish the game on hard difficulty.

A Trusty Old Friend Kill 5 enemies within 10 seconds using any rifle

Legendary Hunter Hunt and loot 5 rare animals

Rebirth Finish the game and return to the beginning.

Sixth Sense Hunt and kill 10 enemies while Perception is active