Alienkid

Practical Mayhem Deploy an active skill in a mission, and have at least one other player use the results.

Broken Ankh Kill Satan with Lazarus

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

MAIN OPS All Rank S Cleared all MAIN OPS missions at Rank S.

Paz's Thoughts Read all of Paz's diary.

Give Him the Stick Kill 25 enemies with melee attacks in Chapter 1: Why We Fight

Blacksmith Craft 300 items at an anvil.

Head trauma Die from hitting head on a barrier

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

EXTRA OPS All Cleared Cleared all EXTRA OPS missions.

Don't Reach, Kid Find the basketball and put it in the hoop.

Data Miner Collect all data packs

Varterral's Fall Defeated the varterral on Hard or Nightmare difficulty ("Witch Hunt" downloadable content)

A Criminal Past Complete A Criminal Past.

Supreme Commander Completed all chapters on any difficulty using Optimus Prime.

Case in Point Complete the Campaign on Veteran difficulty

Inside Job Infiltrate a KPA Stronghold and deactivate the valve without being detected.

The Razor Kill Satan with Eve

Lost Poster Beat the Dark Room with Isaac

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

Elite Forces Cleared "Capture the Enemy Base 06" in OUTER OPS using only soldiers.

Level Up Unlock your first skill.

A Cautionary Tale Collect all the warning signs

Boosted! Hold Super Boost for 15 seconds in Protector mode

Smooth moves Unlock all Combat Upgrades

Legen-Dairy Earn the "Legend" Challenge Collection.
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Party Foundations Buy all items from 'Xmas Basics

Hotel Hell killer Finish 'Hotel Hell' on Insane

Walk the Plank! Complete "Plankerton Storm Shield Defense 1"

Bronze x1 Earn 1 bronze metal by completing a Challenge.

PERFECTAMUNDO PERFORM 10 PERFECTS IN THE ARCADE IN A ROW

Expert Manager Reach B-Spec Level 40.

You Rock! Complete all One Rock Levels.

Quid Pro Quo Help out a fellow inmate by making a trade.

Mecha Mayhem Do battle against the Twins, the Destroyer, and Skeletron Prime simultaneously and emerge victorious.

Natural Talent You finished Mystery Foe without using any active supernatural powers

Back From The Dead Reclaim your gear from a Tombstone in MWZ

Professor Mayhem Purchase 4 different active skills across any number of Resistance Mode characters.

Sanguine Serum In Zetsubou No Shima, drink fresh Widow's Wine.

Splicer God Complete the "Wrath of the Machine" raid on heroic difficulty.

Waiting Is Half The Fun Patience is key to any warrior's training. Fight in network battles 30 times using the standby function. The longer you wait, the greater the joy will be when you finally get picked.

Splatter Fest Kill minions in 12 different rooms

Divine Wind Collected a soldier using a divine wind.

Gear up Loot 1 weapon

Code of Conduct Complete A Criminal Past without killing anyone.

10 Snowballs Throw 10 snowballs in a round

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

Hit The Ceiling Reach REP Level 70

Dressed for the Occasion Blend in with the proper prisoner jumpsuit.

Danger Drone Defeat 10 enemies during a single Agency drone ride