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Evolution Completionist Gain all stars in 'Evolution'.

Light Show Novice Viewed a special date light show.

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Undiscovered Truths Find all the intel hidden in Nightfall.

Homicidal Kill the guide, you monster.

Fusion Training Completed training with Gotenks!

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

A Cut Above Defeat an Impaler (Hell on Earth)

Double Vision Trounce the Twins.

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

Lefthand Mastery Fully upgrade one skill tree

Good Listener Found 20 Portable Phonographs.
0/100

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

You're Not Worthy As My Opponent Breach: Send 3 Challenges.

You know you're REALLY Insane, right? Complete the entire main campaign on Authentic Plus difficulty

In Seventh Heaven Reached overall happiness of 77

Wishing for the Best Complete the "Last Wish" Raid.

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

Making mountains out of molehills Kill 100,000 enemies.

Torque Completionist Gain all stars in 'Torque'.

Favorite Clear all missions of any rank consecutively using the same gun parts.

Predator Master Fed 10 or more fish to other fish.

Wired Up Place 100 wires.

He Talked Too Much Defeat Emerson Miller

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

Developmental Graduate Complete the TRAINING CHECKLIST.

Just Like Old Times Dispatch the professor with a shot to the groin.

Legendary Hero Reach Reputation 5 with any Hero.

Come On And ... Slam 10 zombies at once in Outbreak.

Mancake! Kill an enemy by dropping a structure on them.

The Lich-Queen's Wrath Ally with Voss against the Githyanki God-Queen. Good luck.

Reign Supreme Defeat a Queen Crawler (Hell on Earth)

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

First Step Earn 3 Stars on any level in Adventure Mode

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

The City Awaits Leave Act Two - Baldur's Gate is just over the horizon.

Anorectic Starve for three days.

Head Trauma Use every type of melee weapon on a zombie

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

Like Killing Ants Kill 5000 soldiers.

Two's Company, Four's a Party Complete any Adventure level with 4 players.

I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Pack Addict! Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)

Heroic Training Completed training with Goku!

Chimerical Cure Defeat the Chimera (Hell on Earth)

Thirty is Something Reach Level 30 with any Specialist

Prime Directive Shatter Skeletron Prime.

Heads Up! Kill 25 Heroes by attacking them from above in PvP.