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Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

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

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

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

Secret Mission 4 Lure Zagi to the side of the ship and knock him overboard to cool him off!

Call me Terror-Billy! Beat the game on "Call me Terror-Billy!" difficulty or higher

Secret Mission 6 Use Raven's Serpent arte to set a trap for the Gigalarva and prevent it from healing itself.

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

Secret Mission 15 Use Karol's Nice Recovery Smash arte to heal Zagi's poison in the fourth battle against him.

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Egg-stra Awakening! Complete the Egg-Stra XP challenge and then scan an obelisk in the Invasion DLC package.

Nightfall Completionist Complete all challenges and kill the Breeder in Nightfall in Regular or Hardcore difficulty.

Closing the Book Defeated the redscale dragon from the Book of Apocalypse.

Turnabout is Fair Play Kill 50 Cryptids with the Venom-X weapon in Nightfall in Regular or Hardcore difficulty.

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Secret Mission 11 Destroy the core in the battle against Outbreaker to prevent magic from inverting day and night.

King of Bling Earn ALL of the Clear Gems

The Traveller Acquired all trophies.

Let it Snow Receive the Extreme Environment Suit (XE Suit)

Upping the Ante Kill the Kraken using a Relic in Mayday in Regular or Hardcore difficulty.

Map Nerd Travel to the farthest reaches of the world and explore the entire map. Never know what you'll find!

Secret Mission 19 Down Alexei by attacking him when he's tired after his mystic arte.

Drilling for Justice Assemble the cryonucleation tunneller - the cryodrill

Hat Trick Kill 3 aliens with a single shot from the NX-1 Disruptor in Regular or Hardcore difficulty.

Secret Mission 20 Use the Maris Stella in the fight against the second Cursed Wanderer.

Overachiever Watch the 100% bonus ending

gnilB fo gniK Earn ALL N. Verted Gems

Mass Exodus Complete the final Ancestor encounter in Regular or Hardcore difficulty.

Dog Fight Kill a Gargoyle with the Vanguard in Awakening in Regular or Hardcore difficulty.

I am death incarnate! Beat the game on "I am death incarnate!" difficulty or higher

Stalact-tactician Takedown 2 enemies with one stalactite

For Auld Lang Syne Stop Freeze and bring Boyle to justice

Eggstra Nemesis! Complete the Egg-Stra XP challenge and then activate a generator in the Nemesis DLC package.

Secret Mission 14 Down Schwann by attacking when he clutches his heart after his mystic arte.

Expert Manager Reach B-Spec Level 40.

Snowjob Get 3 enemies frozen in one attack

The Architect Successfully build all of the Schematics in Mayday in Regular or Hardcore difficulty.

Down with the Revolution Stop Anarky thug operations in South Gotham

Mayday Completionist Complete all Challenges and kill the Kraken in Mayday in Regular or Hardcore difficulty.

Secret Mission 21 Attack Gusios' tail, and then down him with a close attack while his feet are raised.

TBoGT: Past the Velvet Rope Score 80% or above in all missions. (The Ballad of Gay Tony)

Spelunker Find all of the Intel in Awakening.

Inquisitive Mind Find all of the Intel in Mayday.

Secret Mission 17 Use the Mother's Memento in Yuri's battle against Estellise.

Big Baller Earn 75,000 points in a single Nazi Zombies game. (Map Pack 2 only)

TBoGT: Gold Star Score 100% in all missions. (The Ballad of Gay Tony)

The Cheeky Lamb Peek into the confessional from outside.

The Final Chapter Find all 7 story related intel files in Exodus.