ART2009

Greatest Tag-Team in History Defeat both Lightning Skeleton arenas in The Great Temple on Hard Mode, with 2 or more players (or as Javier Jaguar)

Twisted Pole Obtain the Twisted Pole artifact.

Took this thing on a test flight Complete Arcade mode with a custom made ship, at Veteran difficulty level

Level Up Level up any of your active skills to level 50 or higher.

108 Swords of Destiny Obtain all of the blades available in the game.

Thrillseeker Unlock Carnival of the Dead

Collector Acquire all items available in normal time attack

Welcome to MY World Defeat 25 Enemies in the Living World as Uay Pek

Come Back To Me Kill a Sectoid who is currently mind controlling a squadmate

Relieved of Command Kill the general commanding the Moscow defenses

Horsepower Completionist Gain all stars in 'Horsepower'.

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

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

Back to the roots You have decided to abandon the old continent to its sad fate

Hallo-winners Restored the timeline to save Halloween

Boxing Master Perform all the moves for the Boxing fight style in a single fight

Hydrogen Run Escape the large zeppelin with 40 seconds or more on the timer

Elements Completionist Gain all stars in 'Elements'.

Long Board Ride the Hoverboard for a total of 10,000 meters (electro-mag cables don't count!)

Knight Score 1 million points in 1 run

World Peace... For Now Beat the game on all difficulties.

Syngenesophobia Defeat the brothers.

We can kill it... As a Fireteam member, work with your team to kill a Predator

The architect Finish Mission 5

Shame of the Scuttlers (Hermetica Ingloria) See a stark naked scuttler. Feel his shame.

A for effort Attain a Time Trial star rating of 35

Heian Demon Completed all missions in "Darkness in the Capital" on Dream of the Demon.
0/11

Qualified Have a Ghost Skill of 90% for a single mission

Lambda Angelus in 60 Seconds Defeated Lambda in the final battle in a minute or less.

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Rocket Science Escape a white dwarf without shooting or ramming it.

Moneybags Have 15000 credits in the bank in Outbreak.

9600 BC Completed! Complete the Ancient Atlantis time zone

RPM Completionist Gain all stars in 'RPM'.

Eating Your Cake Too Finish a 10th run

Katagelasticism Mock the traitor.

Monster Farmer Kill at least 300 of the same type of monster.

A shining inspiration to us all! Achieve the rank of Grand Lord (Rank 25).

Year 673 Completed! Complete the Medieval time zone

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

A big step towards peace You have chosen balance, but you miss some of your allies

Single Impact Defeat The Scale

Seal the Deal Complete a Triumph Seal.

Taking All The Credit Get 140,000 points in the credits minigame.

Conflagration Finish Mission 6

Doublecrossed Eliminate GRIFTER.

Have you tried turning it off and on again? Complete Terminal Error on any difficulty.

The 40-Yard Digital Dash Breach: Succeed 3 Data Sphere deliveries.

Beating Crow Mastered all combat techniques from Corvus

Blood Bank Kill 10,000 enemies