Khriz2pher

Hawkeye Kill 100 enemies while aiming.

Lamborghini Completionist Gain all stars in 'Lamborghini'.

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Midnight Completionist Gain all stars in 'Midnight'.

Stroke of Luck Complete "Stroke of Luck" challenge

Fertilizer Man Kill 200 zombies in a single game. (Map Pack 2 only)

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

Shinier than Gold Get 7 GOLD MEDALS in the Alps Invitational Challenges

Shields Up! Successfully defend yourself with your shield 20 times

Cracker Complete "Cracker" challenge

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

The Pinball Effect Complete "The Pinball Effect" challenge

Fling Me to the Moon In Der Eisendrache, use every Wundersphere twice.

Horsepower Completionist Gain all stars in 'Horsepower'.

dr0n3d Complete the "Arctic Recon" Special Ops mission in under 3:30.

High Roller Complete the "Iron Clad" Special Ops mission on Veteran difficulty.

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

Enforcer Get at least 15,000 points in one Echo round

Extinguisher In the Sewer map, kill 5 enemies in 1 wave by setting them on fire then extinguishing them

RPM Completionist Gain all stars in 'RPM'.

Elements Completionist Gain all stars in 'Elements'.

Headshot Bonanza Complete "Headshot Bonanza" challenge

Out of the Bush Complete "Out of the Bush" challenge

Yeeee HAW! Complete the Adventure Mode on the Hard difficulty.

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

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

Pack-A-Punch-ectomy In Revelations, recover the Pack-a-Punch machine from its abductor.

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

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

Hoarder Have a total of at least 250,000 points in Echoes Mode's total high score

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

Moneybags Have 15000 credits in the bank in Outbreak.

Poly Cruncher Complete "Poly Cruncher" challenge

Hell Razor Kill a Burnout using the helicopter that arrives in Crash Site

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Supernova Get 3 Stars on 20 different Echoes

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

The legend was not enough Reach the LEGEND rank in 3 different fields of expertise

Burgle Burgle Burgle Steal 10 kills from a teammate in Outbreak.

Whoo-paah! Complete "Whoo-paah!" challenge

Like the back of your hand Reach 100% exploration on one REGION in Alps

Fast Track On Mean Street, kill all the snipers on the rooftop before the DNA bomb explodes

You Died Alot Get killed by Jason 100 times.

Pacesetter Completionist Gain all stars in 'Pacesetter'.

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)