UnkynownPlayer

The Challenge King Complete ALL of the Challenges.

Indomitable Complete 'Meet the Dominatrix' without dying.

Kingpin Unlock all Trophies in Saints Row IV: Re-elected.

Mastermind Rescue the second hostage from Riddler

Bow to the Boss! Kill the Dominatrix in 'Escape the Dominatrix'.

Friend of the Raptors Complete all five missions.

Invisible Predator Complete one predator challenge by using only Silent Takedowns and without being detected

Forensic Expert Collect enough evidence to locate the gun for hire

Biggest Bang Complete story mode on Hard difficulty

Contract Terminated Stop the contract operative

Predator Bronze Achieve 8 medals on predator challenges

Freeflow Combo 40 Complete a combo of 40 moves (any play mode)

*BEEP* YOU, CLAWZ! Complete all three missions.

Catch Find someone to play remote Batarang catch with

Mystery Stalker Reveal the mystery watcher

Pay Your Respects A moment of remembrance

...A Saint Gets a Gun Ring all the bells in town in 'Miracle on 3rd Street'.

Minty Fresh! Lick the candy cane barricade all the way through in 'The Fight Before Christmas'.

Serial Killer Track down the serial killer

Our Gift to You Find the present in a holiday mission.

AR Knight Complete all augmented reality training exercises

Freeflow Bronze Achieve 8 medals on combat challenges

Dear Santa Find all the letters to Santa in the holiday missions.

Puzzler Rescue the third hostage from Riddler

Gadget Attack Use 5 different Quickfire gadgets in one fight (any play mode)

Walking the Dinosaur Spend 30 minutes with Raptor Ned as your homie.

Predator Silver Achieve 16 medals on predator challenges

A Very Genki Holiday Complete all instances of Genki Holiday.

Make a List, Check it Twice Complete all instances of Naughty and Nice.

Aggravated Assault Stop all assaults in Arkham City

He's Still on the Naughty List Deliver a present to Zinyak in 'The Santa Clawz'.

Health Inspector Destroy all the green polyps inside Paul in 'Pop His Top'.

Fully Loaded Collect all of Batman's gadgets and upgrades

Lockdown Finish Chapter One

50x Combo Complete a combo of 50 moves (any play mode, any character)

Rigging the Race Destroy all the rival pony carts in 'At the Races'.

Get that Kid to a Psychologist Find all the snowmen vignettes in the North Pole.

Freeflow Perfection Perform a perfect combo including all of Batman's combat moves (any play mode)

Predator Gold Achieve 24 medals on predator challenges

Ultimate Hot Potato Get 100 kills with the Grenade Launcher.

Hello Little Friend Get 250 kills with the Minigun.

OMGWTFBBQ Get 100 kills with the Flamethrower.

A World Without Christmas Complete the holiday text adventure.

Family Reached the Loyal state with all three Underbosses

Gotham Base Jumper Jump off the tallest building in Arkham City and glide for 1 minute without touching the ground.

Intellectual Rescue the fourth hostage from Riddler

Family Jewels Retrieve your stolen goods

Freeflow Silver Achieve 16 medals on combat challenges

Flawless Freeflow Fighter 2.0 Complete one combat challenge without taking damage (any character)

Brainteaser Rescue the fifth hostage from Riddler