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Savage Slayer Complete all Unversed battle missions with the highest rank.

The First Chaos Emerald Acquire a Chaos Emerald.

Villains' Vendetta Win the Villains' Vendetta battle in the Mirage Arena.

Standard Maestro Clear all songs on Standard.

A Head for Heights Create a coaster with an 80m drop

A Mere Shell Defeat the Vanitas Remnant.

Power at Your Fingertips Unlock all city services

I'm dead serious Threw a chaff grenade at ZEKE (single player only).

Recordkeeper Collect all of the notes and memos on Monkey Island™.

Kuwabara, Kuwabara Heard a ghost on the radio.

Complete part one Complete part one: The Largo Embargo

The Warrior: Aqua Learn all of Aqua's Finish Commands.

Pursuit of Knowledge Filled 80% of the Datalog.

Fundamental Principles Amended the Constitution 6 times in a single game

Enemy Breaker Defeat 50,000 enemies.

Well Informed Have a look at all the different info-view panels

Shining Platinum Reach Platinum 1 rank in COM Battle.

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

Treasure Hunter Find 100 treasure chests.

Item Hunter Obtain 10,000 items from Music Stages.

Herr Today, Gone Tomorrow Wolf Mountain - Complete the mission.

Standard Chain Master Clear 50 songs with a Full Chain on Standard.

Light's Will Defeat Armor of Eraqus.

Still counting Attain a Time Trial star rating of 50

Scream if You Want to Go Faster! Create a coaster that achieves 100mph

In Seventh Heaven Reached overall happiness of 77

The Warrior: Ventus Learn all of Ventus's Finish Commands.

Proud Maestro Clear all songs on Proud.

For Science! Researched all technologies at least once before the year 2005 in a single game

Silent Sniper Complete The Last Yardbird as Silent Assassin.

Chapter 2 Speedrun Complete a Speedrun of Chapter 2 below the target time.

Artisan Craft 30 different items.

SIMulated Town Purchase a new map tile for the first time

Darkness's Will Defeat No Heart.

Chapter 4 Speedrun Complete a Speedrun of Chapter 4 below the target time.

Double Trouble Complete The Pen and the Sword in Multiplayer.

Chapter 3 Speedrun Complete a Speedrun of Chapter 3 below the target time.

Networking Reach a 5-heart friend level with 10 people.

Heroes of the Resistance Beat a Retaliation mission with 3 or less civilian deaths

Friends With Benefits Had relations higher than 90 with all factions in the Modern Era

Operation Foxley Wolf Mountain - Complete the mission with a 2 star rating.
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Determined Don't use any hints to finish the game.

A Star is Born Earn a bronze star in Career mode

Time's Teller Defeat the Unknown.

Chapter 6 Speedrun Complete a Speedrun of Chapter 6 below the target time.

Local Legend Restore the Pelican Town Community Center.

Rising Star Earn a silver star in Career mode

Two for One Complete Crime and Punishment in Multiplayer.

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

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