DeltaDarril

Survivor! Survived a Piranha Pond without a scratch!

The best laid plans... Win both Contraption Challenges

Complete Story Mode Complete the main path of Story mode

Campaign Gold Obtain all 108 medals on the original Arkham City campaigns (as Batman)

Mind Trip See all seven memory endings and play through all four path ends in Break on Through.

My Hero Get rescued by the King.

Wulfrun's Bane Defeat the Sorceror Wulfrun.

I feel lucky Purified the sword of the unlucky grave robber

A Meeting of the Minds Completed "A Meeting of the Minds"

Searcher Collect all Ansem Reports in Jiminy's Journal.

Explosive Finish Kill 12 enemies with explosive barrels while riding the server lift during Echoes of a Cold War.

Pacifist Clear the "Intel Operative Rescue" Side Op without killing a single enemy

Friend to the Ring-bearer Speak with Frodo in Rivendell.

Manic Suppression Singleplayer: In Belly of the Beast, defeat the DShK in under two minutes

Ambitious Adventurer Clear the game and watch the ending sequence.

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

I'm number 1 Win 1 Tower Battle

Novice Hero Win the Cerberus Cup.

...Where Credit is Due Watch the credits from beginning to end.
"Hey...aren't they the guys who made Dead Head Fred?"

Reins of History Faced Doctor Cid.

Shocking Discovery! Collect all the items (Batteries) on Lockdown

Blind Luck Kill 25 enemies using blind fire.
"Sorry. Didn't see you standing there."

Superhuman! Perform every character's supermove

Unsafe Working Conditions Completed "Unsafe Working Conditions"

Cradle Claim a Base or Buy a Freighter

Freshman Creator Ace Popit Academy Term 1

Not All Miss In multiplayer, defeat 3 enemies within one Vanguard usage 5 times.

Free Labor Completed "Free Labor"

Platinum Congratulations!

Power Out! Collect all the items (Batteries) on Power Core

Shock Value Completed "Shock Value"

Hitting the Bottle Suffer the full force of Reina's attack.

Whole world in his hands Bring balance to both realms

Top of the Class Set the high score on a Contract.

End of the Line Defeat the Matriarch on any difficulty

Graduate Complete Popit Academy Term 2

Graduation Day Complete both Terms of the Popit Academy

Lucky Guess Next time, Jacob better use a more complex code to arm his bombs.

Speedster Defeat the World of Chaos in the End of the World within 15 hours.

Spooky Scary Skeletons Destroy 10 Glowing Skulls in Monster Ball

She's Worth It? Completed "Man On a Ledge."

Hall of Famer Win all chocobo races.

"I'm all in." Complete 'Suburban Shakedown' as Tyler.

Spider-slayer Slay Saenathra.

Know When to Fold Them Won 3 games of Caravan.

Queen Anne’s Revenge Playing as Blackbeard, perform an acrobatic kill and a gun kill in less than 10 seconds.

Professor Collect all Character entries in Jiminy's Journal.

Hobble Bobble Collect all the items (D.A.R. Bobbleheads) on DieSector

Russian Attack Kill 50 enemies with the AK-47.
"They might be socialists, but they make a pretty good gun."

The Take Greedy bastard. You accepted O'Malley's blood money and let him go.