Polono

Defragmented Completed every fragment category.

Corpse Wagon Detonate fallen Leeches to kill 25 enemies

Perfect Timing Complete 100% of the Time Trials

Kat Working Overtime Completed 40 side missions.

Re-Armed Confront the Stray Arm

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

Anomalous Witnessed every possible Paradox Ending.

Take damage to save time In the Tower's caves, drop from a high point to get deeper faster.

A Night to Remember Rescued Tomoe Sayama

Zomboss Recruit Reach Level 5 with Every Zombie Class

Vacuum Cleaner Decompress 20 Necromorphs without getting sucked out yourself

Event Horizon Defeated 10 enemies with one Micro Black Hole.

High Wind Alert Defeated 10 enemies within 10 seconds using one Gravity Typhoon.

Switched Off Complete mission contract 'Lights Out'

Knot Too Difficult Clear up a tangled situation in one attempt

Through the looking glass Kill 10 snipers before they see you

Showing Who's Boss! Hit 50 Hoard minions in Story mode with any weapon

Not kidding! Reach the podium in a total of 30 Quick Races (not unlockable in Split Screen mode).

Mass Production Produce 100 objects from your builders

Not a Scratch on Her! I'm not taking any chances, this bus can't take much more damage. (Ch. 12)

King of Battle Achieved five-star ranks in all Coliseum Attack stages

Higgledy Gaggle! Awarded for getting a set of matching higgledies!

Higgledy Hotshot Awarded for cooking up 50 different higgledies.

Sewer Aficionado Discovered every mysterious warp manhole.

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

Full House Kill 5 enemies with each type of Agony Bolt.

Pipe Coordinator Placed 9 types of furniture in Kat's Pipe House.

Synthesis Amateur Synthesize 15 types of items.

Best buddies Let the dog lick your face for 5 seconds in Cat and Mouse (playing as the VR Cat).

Hell of a Sheriff Complete the No Way Out scenario. (No training mode)

All Snug in Their Beds Uncover the secret history of the park.

Stuck on You As a Scientist, Vanquish 10 Players with the Sticky Explody Ball

Victory - Complete Campaign on Elite Completed every mission on Elite difficulty

Dressed for Success Find all upgrades for Artyom's suit.

Spoiled for Choice Infuse one of each type of weapon.

Tidy Up Your Toys Rescued Sumomo Ujima

Trying to Set Things Right Nuna and Fox continued after the Mouse.

Pedro, I'm Sorry... Defeat Mutant Pedro in Claire's Episode Two.

A cunning warrior Reach level 3 once with any Trait (Multiplayer)

Lightning Dancer Dodge 200 lightning strikes and obtain the reward

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

Mask Curator Collect all Masks.

Cooking Up a Storm Awarded for cooking 50 dishes.

Standing Room Only Rescued Nozomi Nakahara

Ahoy Matey Summon a Barrel Pirate and Map Pirate Zombie in Gardens & Graveyards

"It" Kept You Busy Defeat Pesanta in Separate Ways.

A Hunter, Through and Through Find and kill all 4 rare spawns.
0/4

Lunar Vortex Grabbed 5 enemies with one Lunar Style Vortex Field.

Clockwork Collector Obtain numbered plates for 3 Clockwork Soldiers

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