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

Be Not Afraid Win the war for Gotham.

The Cat and the Bat Obtain a key by completing the third Riddler trial.

The Nightmare's Finally Over Complete the game on Normal.

Duck If You Love Life Avoid Jack's scissor attack by crouching.

Master of Fear Wayne vs Crane.

Back Off, Mrs. B! Fight off Marguerite while she wanders the old house to make her run away.

Jekyll & Hyde Stop the bank heist on Miagani Island and lock up the master mind in GCPD.

Double Jeopardy Face off with an old friend.

Out Before Dessert Complete the "Happy Birthday" videotape within 5 minutes.

Cycle of Violence Use 100 Quick Gadgets while in free flow combat.

Riddler on the Rampage Obtain a key by completing the fourth Riddler trial.

On the Go Craft special ammunition 50 times

The Cult Save the sacrificial victim and lock up the executioner in GCPD.

Hogar Dulce Hogar Fully upgrade one Camp Facility at any Guerrilla Camp (Solo Campaign only)

The Way of the Voice Complete "The Way of the Voice"

The Burning Question Obtain a key by completing the fifth Riddler trial.

That's a Spicy Meat-a-ball Kill an enemy by attaching a Remote Bomb to them and detonating it.

1st Place at the Science Fair Create all items that contain Chem Fluid and Strong Chem Fluid.

Underwater Archeologist Collect 5 underwater Artifacts

The Primal Riddle Obtain a key by completing the sixth Riddler trial.

Scar of the Bat Cure the doctor.

Get Used To It Die for the first time.

Days of Fire Extinguish the fires in Gotham City.

Savage Metal Smash 10 militia transport vehicles off the road without using the immobilizer.

Fly Swatter Shoot and knock back Marguerite while she's leaping at you.

Touch of Death Apprehend the weapons dealer and lock him up in GCPD.

Ninjerilla Capture an FND Base without being detected (Solo Campaign only)

Specialized Earn all Skills in one category

Good Samaritan Complete 8 Side Missions

Tomb Raider Complete all main game Challenge Tombs

Overheated Complete a Special Operation

Getting it in Gear Earn at least 3 Gears in a Challenge.

Death by Design Obtain a key by completing the seventh Riddler trial.

MOD Initiate Unlock your first Gear MOD, and then activate it.

Just A Memory Now Get ending 2.

Check It Out Capture 10 Checkpoints (Solo Campaign only)

Montero Justicia Recruit the Monteros

The Monster Machine Track down and apprehend the serial killer.

The Road Home Destroy all of the militia APC's.

The Riddle Factory Obtain a key by completing the eighth Riddler trial.

Thanksgiving Shoot a turkey with a Flare Round

First Encounter Complete an Encounter.

Glamping Build one of each Camp Facility (Solo Campaign only)

Words of Power Learn all three words of a shout

Road Rage Perform a Vehicle Machete Kill from a horse

Lethal Pursuits Obtain a key by completing the ninth Riddler trial.

Didn't See That Coming! Use a Security Control Center to disable all cameras and alarms

Friendly Skies Blow up 16 Anti-Aircraft Cannons (Solo Campaign only)

Beginner's Luck Win a Dominoes game