Smookler

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

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

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

A Star is Born Earn a bronze star in Career mode

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Mindful Vandalism Place a sticker or a decoration on another player's sackperson.

Donut Mess with a Cop Unlock Officer Dick.

Challenger of the Rift Completed a floor of the rift labyrinth.

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

Sacred Meeting You spoke to the Radiant Youth in the Mournweald.

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Hard pressed Complete all levels on Hard

Rising Star Earn a silver star in Career mode

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

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Going to the Vet Earn the "Veteran" Challenge Collection.
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Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Wander and the Forbidden Clear the game in hard difficulty

Burning times Complete a level on Master difficulty without using bombs, overdrive or boost with a custom ship

1-Upsmanship Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 1)

Have a Nice Trip! Kill a Walker That Is Falling Due to Dismemberment

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

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

They're People, Too! Complete a Marked Destination on the Map without Killing a Walker

Endangered Lizards Killed all shining lizards

No Mo' Modi Get out of jail, but not for free

Annihilation Get 100 Elite Zombie Eliminations in Zombies

Don't Stop Me Now Create a coaster at least 1500m in length

Climber Reached top of the shrine

The Spider's shadow Complete a Noir level without triggering an alarm

Spirited Sparring Kill 500 enemies with Ultimate Skills as a Spiritborn.
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Reinvent the Weapon Wheel Re-collect all of the weapons on the Weapon Wheel

Sack the Postman Post all 6 invitations for the party.

Going Up… In The Darkest Shore, unlock the Ubersprengen.

Brightest Star in the Sky Earn a gold star in Career mode

Tour guide Find 149 Points of Interest in Alps

No more secrets Find 110 Drop zones, 115 challenges and 149 Point of Interest in Alps

Say Hello to My Little Friend Complete a Marked Map Destination Using Only Firearms

Trial by Fire You defeated the archon, Rajani.

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

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

The Chaos In the Rift Encountered a chaos event.

It's a Trap! In Shi No Numa, kill at least one zombie with three different traps in a single round.

Mighty Wander Max out stamina bar

Pit Master Discover and fight Hidden Kombatant 3 in Arcade Ladder

Insert Coin Complete all achievements in one game from The Arcade.

Controlled Chaos In Revelations, override all of the Corruption Engines before round 6.

Monster Summoner Summoned your first monster.

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

Worst Nightmare Master the Worst Nightmare Dark Knight track