MAXNAIF

Out of the Dumps Escape the Dumps

Workbenching Place a workbench on all islands of area 1, 2 and 3

Down the Rabbit Hole Collect and equip the complete Rabbit Armor and eat a carrot.

Do you even Exo? Exo Melee kill 10 zombies in 30 seconds in Outbreak.

Power Extreme Unlock all abilities

God of Treachery As Loki, land one KO by stabbing from behind.

Clairvoyance Discover every Spectral card

If I Don't Do It, Who Will? Complete 7 Expert Missions.
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I've Heard Your Name Reach Reputation 1 with one of the Viking Heroes.

Watch Your Step! As Peni Parker, blast 3 enemies with a single use of Arachno-Mine.

The Golden Touch Defeat a boss with one of Ms. Chalice's Super Arts

Demon Slayer Kill 15000 Demons With One Hero

Speed Demon Earned Gold in all Speed challenges in Mission Challenge

Serena Acquire Serena.

Fused Twilight Gem Obtain the Fused Twilight Gem artifact.

Through the Dimensional Rift Defeated Omega.

Cheapskate Acquire the exo suit without spending any money in Outbreak.

Entranced by Battle Having an audience changes everything...and turns a mere fight into thrilling spectacle. Spectate a Battle Hub Match, and bear witness to glory.

Grunt Slayer Kill 15000 Grunts With One Hero

Focus Hard - Not on a Place, But on a Person Interact with Time Miniatures in all Bases.
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Cleanest Hands You completed The Brigmore Witches without killing anyone

Go Get 'Em, Guardians! As Rocket Raccoon, revive the Guardians of the Galaxy members 5 times.

Vicious Vines As Groot, imprison 4 enemies with a single use of Strangling Prison.

Perfect Defeat a boss without taking any damage.

Dark Boy Beat the Depths/Necropolis without taking damage

Deadly Bites As Black Widow, land 3 KOs with critical hits in a single match.

Rush Hour Get a Double Kill with the RC-XD in Multiplayer

Can't Touch This Defeat the Hollow King Boss without taking damage.

The Historian Score a left foot volley against Coventry City in The Journey

Mama's Boy Beat the Womb/Utero without taking damage

Nervine Kill a Berserker on normal or higher difficulty setting in campaign mode

The Crow Defeated the Awakened One.

It didn't SEE that coming! Defeat an Illuminate Great Eye.

Floater Parachute off a Gantry Crane onto the roof of the Harbormaster's Building in 'Precious Cargo'

Betrayal Kill an enemy from behind at close range while disguised by the Sleeper Agent

Cultist Slayer Kill 15000 Cultists With One Hero

Nadeo Space Program Reach a height of 1,2km

Mom's Knife Kill Satan with Isaac

High and Dry Complete "Worm on Trap"

Paragon Hero Reach level 10 with one character

Excuse Me Kill an enemy hero with Brigitte's Shield Bash in Quick or Competitive Play.

Ostiophobia Defeat the son.

Monkey Defender Successfully defend against a penalty.

Flipping Out Earn 10 boosts in one match by completing forward flips with the right stick

Has science gone too far? Get a kill using the HT-95 Levkov, XD-1 Accipiter, Rorsch Mk-1, and Schipunov 42

Up on the Big Screen Sit down by the big monitor in the Battle Hub, and you can view all kinds of stuff. Man... Used to be me up there going wild on the big screen.

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

Washington Raiders Complete the full Operation Dark Hours raid in a group of eight players.

Devil Inside Me Kill 10 players by any means.

Finally Home Complete every Adventure level in The Journey Home.