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Wardrobe Change In Revelations, wear three different hats.

Lights Out Throw the lanterns off the map

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

One Too Many In Zetsubou No Shima, throw up.

Background Reading Look in every folder in Flight Computer

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

Perseus Complete the reaction test minigame.

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

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

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

Just walked in Complete "Tower"

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

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

Wheat From Chaff Gain 25 PERFECT medals

Assault With Battery In Zetsubou No Shima, electrocute a zombie with a shield.

Vaporeyezed In Gorod Krovi, use the Gigant Beam to kill 20 Zombies in one activation.

Battle of Chibi Cleared the stage, "Battle of Chibi."

Iron Breakers Complete the full Operation Iron Horse raid in a group of eight players.

Cryogenic Slumber Party In Moon, complete Richtofen's Grand Scheme.

Herbal Remedy In Zetsubou No Shima, use a plant to return to life.

Small fish, big pond Complete "Miniature"

Wonderful In Revelations, kill 10 enemies in one shot with each wonder weapon.

Born Survivor Successfully survive and escape in Survival Mode.

Objectively Good Capture an objective, build both fortifications and unlock both perks

The Kingdom in Three Cleared the stage, "The Kingdom in Three."

Top Shelf Reach the highest platform above the power drill in "Miniature"

Viktorious Revenge In Gorod Krovi, complete all solo Trials in one Zombies game.

Small Consolation In Shangri-La, use the 31-79 JGb215 on each type of zombie.

Spotless clean Get rid of the ash in "Miniature"

Subzero Hero Obtain clothing to get a survivable temperature rating of -22°C / -7°F.

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

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

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

Untouchable Completed a battle in either Campaign Mode or Conquest Mode without taking any damage.

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

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

Cu later Complete "Copper World"

Little Lost Girl In Origins, release Samantha.

River Rescue every survivor.

A Better Tomorrow In Revelations,complete the cycle.

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

Captivated Capture 50 Tactical Objectives

Buffing... Please Wait Grant your team a Perk 10 times

Love And War In Gorod Krovi, the one must be freed.

Square peg in a round hole Attempt to use an improvised battery in "Copper World"

Quiet Ambition Cleared the stage, "Quiet Ambition."

Loose change Throw all four hidden coins off the level in "Copper World"

Navigator Complete the Smith's Challenge minigame.

Explorer Discover all the secret areas.

Survival Instincts Achieve Master Rank in Survival Mode.