megaboing

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

Your Conscience Be Your Guide Found a way through the Rainbow Caverns

Historical Reenactment In Blood of the Dead, equip Hell's Retriever, Spoon, Blundergat, and Tommy Gun at the same time

Just walked in Complete "Tower"

Calling For Backup Call in 50 Scorestreaks in Multiplayer

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

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

Perfected Get 100 Eliminations while having an active Combat Hybrid Perk in Multiplayer

Wardrobe Change In Revelations, wear three different hats.

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

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

One Too Many In Zetsubou No Shima, throw up.

Cover-to-Cover Solid Read all the pages in the Screenplay Book

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

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

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.

Unstoppable Completed Shore Leave on Hardcore difficulty

Small fish, big pond Complete "Miniature"

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

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

Masterminds GTA Online: Complete all 3 Criminal Mastermind challenges in The Doomsday Heist.

Frontline Offensive Win 25 Multiplayer Matches

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

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

Destroyer Get 1000 Eliminations in Multiplayer

We Didn't Need a Bigger Boat Complete Escalation and Disruption in Co-Op Campaign

Spotless clean Get rid of the ash in "Miniature"

Throw a Dog a Bone In Blood of the Dead, feed a wolf head from the Gondola, Citadel, and Model Industries in a single game

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

Heart of Darkness Complete Inside and Distortion in Co-Op Campaign

Abandon Ship In Voyage of Despair, complete the Trial

One Against All Kill Orcus while in a 6 person squad in MWZ

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

Slaughterhouse Kill 50,000 total Enemies in MWZ

Power Struggle In Classified, reach round 20 without turning on the power

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

The Bigger They Are… Complete Collapse and Fracture in Co-Op Campaign

The Doctor is In Use PhD Slider to fall 10 feet and kill 10 zombies at once

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

Most Escape Alive In Blood of the Dead, escape

The Highest Office In Classified, reach round 20 without using an elevator

She Crazy Finished the game with the normal ending.

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

Head Games You dropped dad's head through the basketball hoop!

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

Prison Break Complete Quarantine and Suppression in Co-Op Campaign

Cu later Complete "Copper World"

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

Top Ape Earn your first Gold Medal Time during a Time Trial.