ItsDissonant

Sphinx' Riddle Complete all 40 of the Catwoman Riddler grid items

Sunday Driver Complete the driving portion of S.O.E. without hitting any obstacles.

Barrel Roll a Toy Car in the Airfield Awarded for successfully landing a Barrel Roll in the Airfield driving any of the Toy Cars

Interstellar Challenge Win against Nitros Oxide in the Adventure Mode.

4.5 seconds of Crash TV Air Time Successfully land the Island Mega jump from the Crash TV Ski Jump and get at least 4.5 seconds of Air Time

Maximum Firepower Take control of an ASP.

A Scanner Darkly Attain ‘Naturalist’ status in Planet Zoology Scanned

DLC: Zombies: Killer BeeZ Destroy all the Zom-bee nests in Laboratory of the Dead.

An ode to Rube Goldberg Get 20 chain reaction explosive kills

Make it go boom Kill 20 enemies by shooting explosives

T-Bone: Friends in Need Complete Act 1

The Crown Jewel Seek and destroy.

Sick of Fish Visit someone in jail

Not out of Gobblegum! In Shadows of Evil, purchase and chew every type of GobbleGum in your Pack.

Make Like a Tree and Laugh Tell a great joke in one attempt

Winter Will Not be Contained! Collect all the items (Snowglobes) on Krampus Lair

Complete your first Timed Challenge Awarded when you complete your 1st Timed Challenge.

In Their Sleep In Campaign, kill 5 stunned enemies in under 3 seconds.

Who Goes There? Attain ‘Diplomat’ status in Alien Colonist Encounters

"That kind of thing can be pretty convincing." Get to know a stranger

How'd I Do? Follow up on a successful performance

Damsel in Distress Rescue the princess

Arctic Hurdler Use the shortcut in Polar Pass.

Gary Has His Reasons Hear 20 reasons why Gary won't grab that

Honor Bound Bind a piece of gear to a class.

He Must have a Reason Stand up for someone even though you haven't met him

Battering Ram Shield Bash 5 different thugs

The Next Most Logical Course of Action Start a group dance party

Mass Production Produce 100 objects from your builders

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

Ack Ack Protect your tanks by shooting down all planes in Operation Cobra.

Through the looking glass Kill 10 snipers before they see you

EMANCIPATED Collect the key in the Female Ward

Knot Too Difficult Clear up a tangled situation in one attempt

Frequent Flyer Zip Kick 5 different thugs

Wax On, Wax Off Complete Training Program 2

Take part in an Online Marked Man Awarded for taking part in an Online Marked Man.

Best of the Bunch Earn the MVP award in any Online Tournament match

Burning Rubber! Drift Boost a total of 500 times.

Take part in an Online Stunt Run Awarded for taking part in an Online Stunt Run.

Trepaning For Fun and Profit Collect all the items (skulls) on "Nightmare"

Perfect Freeflow 2.0 Perform a perfect combo including all of Batman's combat moves (any play mode)

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)

Double the Action Complete Campaign Mode In Co-Op Mode

Time for Pints Finish the Campaign on any difficulty.

Look, I made this! Create a ship and share it

Throwing Flak Kill 3 Talons with a single mid-air grenade detonation.

Casual Reader Find 50% of the war diaries

PUNISHED Finish the game

I Siwa you did there Make the target officer's death look like an accident (Mission 5)