PtDisco

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

Bonus Onus Unlock all bonus levels (25)

Ralan's Mission Complete all bonus levels

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.

Wardrobe Change In Revelations, wear three different hats.

One Too Many In Zetsubou No Shima, throw up.

Penultimate Reach Zone 50.

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

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

We don't need roads... Complete Zone 50.

Background Reading Look in every folder in Flight Computer

Small fish, big pond Complete "Miniature"

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.

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

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

Perseus Complete the reaction test minigame.

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

Wheat From Chaff Gain 25 PERFECT medals

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

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

Spotless clean Get rid of the ash in "Miniature"

Born Survivor Successfully survive and escape in Survival Mode.

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

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

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

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

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

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

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

Cu later Complete "Copper World"

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

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

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

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

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

Little Lost Girl In Origins, release Samantha.

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

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

A Better Tomorrow In Revelations,complete the cycle.

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

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

Captivated Capture 50 Tactical Objectives

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

River Rescue every survivor.

Quiet Ambition Cleared the stage, "Quiet Ambition."

Explorer of the Deep Complete "Underwater"

Subpar parking job Find the speed boat in "Underwater"

Survival Instincts Achieve Master Rank in Survival Mode.