EtherMemory

Pipe Dream Use the sewer to escape the junkyard on "Redrock"

Counter Strike Attack a Hunter within 15 seconds of them deploying in Hunt outside of the Tutorials.

Medallist Obtain any medal in 10 different challenges

I need your Headband, Sunglasses and Minigun Get Headband, Sunglasses and Minigun in one run in Commando mode

Short Fuse Kill an enemy by shooting Ashe’s Dynamite from at least 30 meters away in Quick or Competitive Play.

Pretty fly for a cacti Place the hat on the cactus in "Red Rock"

Act 6 Recruit Complete all Act 6 maps on Recruit difficulty or higher.

The Temple Visit a Leyshrine

Foot in the door Find a shorter route for moving the batteries in "Tower"

Just walked in Complete "Tower"

The Curtain Falls Flawless FreeFlow in every round of the Monarch Theatre as Batman, Robin, Nightwing and Catwoman.

Gest - Chapter XIV Finish the levels from Chapter XIV in Warrior difficulty

Unholy Grail Find the Secret in The Cut.

Requiem for a Killer Defeat an old adversary in the Iceberg Lounge AR Challenge, playing as Batman.

Bonus Onus Unlock all bonus levels (25)

The Haunter of the Dark Reach the Tower

In the Vault Explore a Vault

Ralan's Mission Complete all bonus levels

Timing is Everything Kill the final 3 Ancestors within 10 seconds of killing the first Ancestor in Regular or Hardcore difficulty.

Adaptation Absorb 1250 damage with Wrecking Ball's Adaptive Shield without dying in Quick or Competitive Play.

The Other Gods Draw Forth the Most Powerful Surge

Popcorn Cook 50 zombies with the Magnetron in Infection.

Served Up Get a killing blow as Ashe on an enemy knocked into the air by B.O.B. in Quick or Competitive Play.

This Is Fine Set an enemy on fire with the Flamethrower, while also being on fire.

Beyond the Wall of Sleep Enter the Maelstrom

The Silver Key Obtain ?????

None Left Standing In Der Eisendrache, kill every type of zombie using a minigun.

Crop Duster In Zetsubou No Shima, kill 10 zombies with a single shot of the KT-4.

Time saver Use the pipe to cross the lava in "Tower"

The End You beat the game!... but that's not the end, is it?

Skills for Duels Legendary Souls: won with brave edge.

Anger Management Unlock Level 3 AGRO.

Zoning Out Unlock Level 3 ZONE.

Feel the Burn! Perform every Meter Burn special move of every character

Long Way Down You performed a drop assassination of at least 150 meters in the Kill Cascade challenge

Left For Dead Incapacitate a Hunter and leave them to bleed out outside of the Tutorials.

The Outsider Defeat a Surge Summons

Momentary Pleasure Successfully performed an impact 100 times.

Snake Bite Shut down the Hennessey Venom GT Spyder (Single Player)

Wardrobe Change In Revelations, wear three different hats.

Hotswapaholic Do damage to the Monster with every class in a match.

Always Hard Kill the final Ancestor with a relic active in Hardcore difficulty.

Don't You Die On Me Revive a teammate in Co-Op Campaign or Endgame

One Too Many In Zetsubou No Shima, throw up.

I swear to you... I will eradicate the Titans!! Reached 100% Survey Mission completion.

Tools of the Trade Craft the Virus Filter and Flare Gun in Survival mode.

No Charge for Awesomeness Use 20 Different Awesome Attacks

It's a Legitimate Strategy Get 3 Kills while defending an Objective Zone without leaving it

King of the Ovals Drove a total of 500 miles (approx. 806km) on oval tracks

Seeds of Doubt In Zetsubou No Shima, the one must be saved.