Ragtimer

Surprise Attack! Arrive at the objective in File R-07 without being spotted.

A Clean Bill of Health Have a single character affected by all status ailments (both beneficial and detrimental).

Views From the Abyss STU: Complete "The Spider's Thread" mode.

Give Them Something to Believe Complete New Game Plus

Duct Tape FTW Create all combo weapons

Infinity Defeat Dr. Infinity

House of Grief and Hatred Complete all the battle challenges.

Empty Handed Purchase all available items in the shop in the City of the Blessed Name.

Perkaholic Have 9 perks active at the same time in MWZ

Artful extraction Absorb your third Boss Stem Cell

Extreme Manhunt Complete a Seasonal Manhunt mission on Challenge difficulty or above.

Daemonologist All Charms unlocked

Untouchable Emissary Reach the end of the game without a game over.

Career 75% Complete 23 different championships in your career

Finished, without fear. Finish the game with two Boss Stem Cells active

The Sacrifice Completed Ending Two

Doctor Heal over 500,000 hit points.

Torque Completionist Gain all stars in 'Torque'.

Salute Me Achieve the rank of Lieutenant.

Tough luck, chum! Complete Ragnarök - Part I on any difficulty.

FINE PLAY! (Opening Boss) Achieve all FINE PLAY! technical bonuses in the Opening Stage boss battle.

Poo! Enter POO as your initials!

Vapours Win a Refuel event with an empty tank (no teams)

That's One Way to Do It... Destroy an airborne enemy helicopter with a Mortar Strike

Between Worlds Find and complete all of the Eternal Wells

Grate Hall Access the Oubliette

Team Player Equipped 2 Team Charms

Green Series clear Get a silver medal on every green track

Nobody Expects the Spanish Inquisition! Kill every type of enemy in the base game.
54/65

He Talked Too Much Defeat Emerson Miller

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

Wishing for the Best Complete the "Last Wish" Raid.

Call of the Void Complete Ragnarök - Part II on any difficulty.

Up-Lifting On Monorail Factory, kill all enemies whilst riding the lift

A Leap of Faith Lift the Curse of the Unforgiven.

Potentite Purist Collect every potentite.
The power is in your hands!

Zombie Genocide Master Kill 72,000 zombies

Smell You Later The punks are spooked and refuse to help you in your final quest

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Signing Day Announce where your college ball will be played at.

Another Dimension Collect 2000 worth of gold lying on spikes, while using the Phase Locket.

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

The First One is the Hardest Get your first 1,000,000+ combo

Fully Loaded Maximize all upgrades.

Blessed Incense Unlock the true power of Veredicto.
9/18

Chuck Greene: Cross-dresser? Change into all pieces of clothing in the game

Still counting Attain a Time Trial star rating of 50

Chapter 2 Speedrun Complete a Speedrun of Chapter 2 below the target time.

I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

Bookwyrm This is proof that you've become quite familiar with the Library. How to obtain this is kind of a secret, but if you take the time to do a bit of reading now and then, you should be pleasantly surprised.