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Time Attack In Gorod Krovi, complete Time Attack: Round 20.

Arcade B-license Get B class license in Arcade mode.

Zombie Fanatic In Blackout, unlock Bruno, Scarlett, Diego, Shaw, Dempsey, Takeo, Nikolai and Richtofen

Monk Become a monk.

Raging Bull Completed all chapters on any difficulty using Sideswipe.

(Don't) Hit the Brakes! Defeated 100 enemies with Rush Attacks.

The Full Cavity Treatment Complete all 3 Track Challenges on any track

What A Load Of Bull Listen to the surgeon rap.

Prismatically Aligned Complete a Prismatic Trial.

Silver bullet Obtain a silver medal in 10 different challenges

Trial of the Magician Travel Light on for "In Hushed Whispers": finish the quest.

Gotta Get Rifty Complete "Rifty Business"

Overachiever In Origins, complete all 4 Challenges in one game.

Fairy King Defeat the Fairy Boss

No Secrets Find a secret room 10 times

There Is Kindness in You Accept The Song's compromise

Web of Defeat In Zetsubou No Shima, remove webs in every possible way in one game.

Terrible Terrible Damage! Inflict over 20,000,000 total damage.

Trying to Get "Trial and Error"? Kill yourself 1000 times.

The Whole Package Unlocked all game modes

Prestigious Award Attain max level or Prestige with 25 different weapons in Zombies

The Long Road Complete 20 stages in a single run.

Flyswatter Finished the lift battle in Chapter 2 without taking damage from Insecticons.

Haggler Save 2000 Groschen by haggling.

Oh, My Bad Kill your friends 1000 times.

BlueGrass Is Still the Best Unlock all the Perks

Change of Heart Achieve a total of 100 Grind-Switches

Naive Merchant Sell 40 items really cheap

You've met a terrible fate. No going back.

Sanctified Finish the game in Hard Mode

Really Dedicated Max out all stats (campaign mode)

Preemptive Strike In Classified, kill 50 Nova 6 Crawlers without letting them explode in a single game

Wizard's Diploma Beat the five base Challenges on Normal difficulty.

Outcast Finish Mirrored Chapter II.

Don't. Touch. Anything! Reach the Corrupted Prison for the first time.

Remember It Like It Was Yesterday Recall all your childhood memories.

For The Good Of All In Revelations, the Key must be opened.

Ground Control In Moon, prevent each excavator from breaching the base in one game.

The Goggles Do Nothing Completely smash up the goggles.

Promising Buster Complete 5 levels with 3 stars

Zombiepult In Gorod Krovi, launch 10 zombies into the air at the same time.

Jaxxed Have 50 or more Strength during combat.

Crawl for Help In Classified, while in last stand use a teleporter and then get revived in a single game

Blackout Historian In Blackout, unlock Reznov, Mason, Woods and Menendez

Archmage Kill 10,000 enemies.

Arcade A-license Get A class license in Arcade mode.

All The Way Completed 100 missions in a single game

This Damn Island In The Darkest Shore, explore the entire island.

Little Lost Girl In Origins, release Samantha.

It belongs in a museum! Bring an artifact back to the museum.