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Skewered in Space Impale an enemy into a Decompression Window to cause it to blow out

Tell Me a Story Completed 10 substories.

I can open doors! Complete the Breach in 10 seconds

Chapters 8-11 (Normal) Complete Chapters 8 through 11 on Normal difficulty.

My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)

Retail Therapy You unlocked the special ability of buying guns from Little Jacob.

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

Bounty Hunter Get a total of 50,000 BP.

Paradigm of Humanity Reached Level 20 with Neutral Karma

Venting Frustration Spend 7 minutes on steam vents

Vault-Tec C.E.O. Collected 20 Vault-Tec Bobbleheads

At the Summit of Apocrypha Complete "At the Summit of Apocrypha"

“The ‘I’ in Team” – Collector Found all collectable Roses in “The ‘I’ in Team”

Ghost Vanquisher Defeat 30 Ghosts.

Architect Build three wings on a house

Annihilation Kill 100 aliens

Just Peachy Collect all the Peaches in the Scroll of Destiny

Wicked Weave Master Execute 20 Wicked Weave attacks while using Dodge Offset.

The Hurt Mine Locker Kill 10 monsters with one mine

Sins of the Father Completed chapter 6.

Never Saw It Coming While invisible, used Peeping Tom to knock out 15 enemies with a melee attack.

A Ripple in Time Obtain the item that lies beyond the gate in the sewers in Barry's Episode Three.

Adrenaline Rush Manually trigger AR Mode and destroy three enemy robots in a row.

The Amateur Trophy Win 'The Amateur Trophy' event in Tour on gold star difficulty.

The Bull You defeated Lawrence Barrett, elite member of a secret mercenary hit squad.

Master Conductor - Electrocute 3 Helghast Electrocute 3 Helghast with a single burst from the VC5 Electricity Gun

Chapters 12-13 (Normal) Complete Chapters 12 and 13 on Normal difficulty.

Chain Reaction Damaged fifteen foes with an exploding enemy, using the Radar Range in Burial at Sea - Episode 1.

Mystery solved Find all the secret files

Hunter-Seeker Find and kill all the most dangerous monstrosities located in dead zones

Dream Team Complete all the main quests cooperatively with any number of partners

RIG Master Fully upgrade your RIG.

Get Rich or Die Trying Have $50,000 current balance in a Special Ops Survival game.

Small Things Can Surprise You Take down Mog Chothra

Zookeeper Kill the Brawler in Haven without taking any damage

Solstheim Explorer Discover 30 locations on the island of Solstheim

Vehicular Manslaughter Destroy 10 Warden vehicles while on the train

One Man Army Kill 25 enemies while being dragged from the restaurant, without dying or restarting checkpoint

It's an Order Mark 100 opponents which were then killed by your co-op partners

Who Needs Fire? Escape from the detention center in Claire's Episode One without using the flame-thrower bust.

The Sampler Platter Kill a Necromorph with every Weapon in the game (single player only).

Kindred Judgement Complete "Kindred Judgment"

End to Major Combat Operations Complete Act 5 without using mission select.

The Imaginative Endure Complete the Game on Normal Difficulty

Silent Protagonist Meet 'Akano

Liberty City Minute You finished the story in less than 30 hours.

Bloodborne Kill 3 enemies simultaneously using a single mutated body

The Dragon and the Koi Completed chapter 7.

Flip Flop "Flip" a map twice.

Gripped Defeat 100 enemies with Force Grip