Cemetery: Beat the level (Solo Campaign)

Tutorial: Destroy all objects (Solo Campaign)

Oriental Castle: Gib 123 enemies (Solo Campaign)

Cathedral: Collect 330 pieces of gold dropped by enemies (Solo Campaign)

Loonypark: Kill 3 monsters in a row using saw blade (Solo Campaign)

Opera: Collect 100 souls (Solo Campaign)

Swamp: Kill SwampThing in under 4:00 (Solo Campaign)

Orphanage: Gib 50 frozen enemies (Solo Campaign)

Shadowland: Collect all Holy Items (Solo Campaign)

Colloseum: Pick up every ammo box (Solo Campaign)

Alastor: Kill Alastor in under 5:00 (Solo Campaign)

Atrium Complex: Finish level in under 7:00 (Solo Campaign)

Enclave: Kill Necrogiant in under 2:00 (Solo Campaign)

Colloseum: Morph into demon 3 times (Solo Campaign)

Opera: Find all secret areas (Solo Campaign)

Trainstation: Cut limbs of 100 enemies using Soul Catcher (Solo Campaign)

Factory: Kill 30 enemies in demon mode (Solo Campaign)

Orphanage: Kill all monsters (Solo Campaign)

Cathedral: Collect 500 gold (Solo Campaign)

Loonypark: Possess 25 enemies using Soul Catcher (Solo Campaign)

Oriental Castle: Collect all Holy Items (Solo Campaign)

Shadowland: Kill Grim Reaper (Solo Campaign)

Kill 666 enemies with Soul Catcher

Kill 999 enemies with Shotgun

Solo Campaign: Collect 2012 pieces of gold from fallen enemies

Solo Campaign: Find 25 secret areas

Solo Campaign: Finish 1st chapter

Finish 2nd chapter

Solo Campaign: Finish 3rd chapter

Collect 667 souls of dismembered enemies

Shoot 50000 times

Play 10 different levels in cooperative mode

Collect 500 ammo crates

Destroy 300 barrels

Kill 333 enemies with explosive weapons

Kill 5 enemies with one rocket

Spend 666 seconds on bunny-hopping

Gib 500 enemies entirely with rockets

Solo Campaign: Play whole game on Nightmare difficulty level

Solo Campaign: Play whole game on Trauma difficulty level

Collect 40 armors

Solo Campaign: Finish the level using stakes only and don't miss any hit

Kill 6666 enemies with stakes

Kill 1000 enemies in Survival mode

Collect all available Black Tarrot cards

Kill 500 enemies with environmental explosions

Kill 123 enemies with combo damage

Capture 3 flags playing as Eve in one game

Get 30 kills in 3 minutes in Deathmatch mode

Finish level without being hurt

Play cooperative level and don't let your partner die

Kill enemy at the same time he kills you

Kill 3 enemies with one Boltgun shot

Bring enemy flag to your base

Don't die and win multiplayer game

Don't let any of your enemies collect Quad Damage

Play with at least 4 other people and collect 4 frags more than any of your enemies

Win Team Deathmatch with the highest score in your team

Win Capture The Flag by bringing the flag to your base in last 10 seconds of the game

Win Survival killing at least 2 times more monsters than your rivals

Kill 3 enemies with one shotgun blast

Kill 256 enemies when bunnyhopping

Keep the hit ratio above 90% in whole level

Win Survival match

Finish special Halloween map and collect all lollipops for Lucipher

Defeat Satan Claus on special Christmas map

Win deathmatch game on Psycho

Win survival game on Illuminati

Kill all enemies on Bridge map (solo campaign)

Finish Town map (solo campaign)

Select your own Pope in Conclave level

Find all secrets on Bunker map(solo campaign)

Win Deathmatch match on Fragenstein

Collect all Satan's Eggs on Easter level

Beat the Atrium Complex challenge in solo survival mode.

Beat the City on Water challenge in solo survival mode.

Beat the Opera challenge in solo survival mode.

Beat the Trainstation challenge in solo survival mode.

Beat the Unseen challenge in solo survival mode.

Beat the Chaos challenge in solo survival mode.

Beat the Illuminati challenge in solo survival mode.

Beat the Inhumator challenge in solo survival mode

Beat the Psycho challenge in solo survival mode

Beat the Fragenstein challenge in solo survival mode

Beat the Blink challenge in solo survival mode

Beat the Meatless challenge in solo survival mode

Beat the Mines challenge in solo survival mode

Beat the Prison challenge in solo survival mode

Beat the Snow Town challenge in solo survival mode

Finish the Graveyard

Make your way through the Town

Kill final enemy on Babel

Defeat the Stone Golem on Angkor

Beat the tank hordes on Pentagon

Don't kill any zombies while solving the puzzles

Avoid any burns on Fire Plate Puzzle

Use 5 electric sparks under 20 seconds during boss fight

Discover how to summon Ghostship

Let them burn: Destroy all 3 ambulances

Kill all the castle guards.

Solve the pope puzzle.

Flip all 16 columns.

Finish 3rd arena without using MonkTrap.

Collect all holy items on Monastery map (solo campaign)

Destroy all objects on Ruins map (solo campaign)

Collect all ammo on Pentagon map (solo campaign)

Beat the Factory challenge in solo survival mode