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A Big Fan of Lefties Acquire all enemy officers' left arms.

RPM Completionist Gain all stars in 'RPM'.

Specter Officer Reach max level with one class in the Cooperative campaign.

A New Protagonist Earned the top ranking in the Friendly Match.

Elements Completionist Gain all stars in 'Elements'.

I've not seen such bravery! Complete all Trophies in Gauntlet™

Mid Stakes Win a run on at least Black Stake difficulty

Collector Acquire all items available in normal time attack

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

A Champion's Path Defeated a Nightlord with each character

Chef's Soul You can make any type of food. That's pretty cool, right?
Well, eat up and get back to battle!

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Perfect 10 Pigsy's Perfect 10: Finish the Shooting Gallery under 40 seconds without shooting any pin-ups.

Ended Alexei's Ambitions Put an end to Alexei's ambitions. Of course, the Adephagos will still remain. The battle continues!

Into the Caves of Insanity Find and read all journal fragments in the Main Campaign.

Four Birds, One Stone Pigsy's Perfect 10: Kill 4 Mechs with 1 Bomb device.

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

The Bigger They Are... Destroy a total of 100 Custom Cyborgs during story mode.

Pursuit of Knowledge Filled 80% of the Datalog.

Speedrunner Win a run in 12 or fewer rounds

Pacesetter Completionist Gain all stars in 'Pacesetter'.

Salute Me Achieve the rank of Lieutenant.

True Love Found Reunite Aym and Baal with Forneus.

Stunning! Pigsy's Perfect 10: Stun 5 enemies using one single EMP device.

I Meant To Do That Kill yourself 100 times.

Secret Mission 22 Down Khroma by timing your strikes between certain attacks of hers.

Velocity Completionist Gain all stars in 'Velocity'.

Evolution Completionist Gain all stars in 'Evolution'.

Regenerate Help Sozo.

Tearing Away the Disguise Destroy all of the humanoid Dwarf Gekkos during story mode.

Gest - Chapter XIII Finish the levels from Chapter XIII in Warrior difficulty

Nightreign Obtained all trophies

Katz Person You must really love Katz to have collected so many Katz Spirits!
That's the spirit, meow!

A Lover, Not a Fighter Successfully complete 10 No Kill battles during story mode.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Torque Completionist Gain all stars in 'Torque'.

Surprise Attack! Arrive at the objective in File R-07 without being spotted.

Two's Company, Four's a Party Complete any Adventure level with 4 players.

Defeated the Adephagos Defeat the Adephagos with Duke, and bring about the beginning of a new world, one without blastia.

Potentite Purist Collect every potentite.
The power is in your hands!

Master of the reliquary Gather all the fingers of Frankenstein

"You gonna eat those twinks?" Disobeyed by Invisigal

Dinner Date Pigsy's Perfect 10: Collect all hidden food and pin-up girls.

Bookwyrm This is proof that you've become quite familiar with the Library. How to obtain this is kind of a secret, but if you take the time to do a bit of reading now and then, you should be pleasantly surprised.

Donut Mess with a Cop Unlock Officer Dick.

Going to the Vet Earn the "Veteran" Challenge Collection.
0/10

That Party was Ace Ace every Adventure level in The Journey Home.

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

Doctor Heal over 500,000 hit points.

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)