ZiroSum

Nyx's Mirror Have at least one rank in each Mirror of Night Talent

Paragon Learn every spell.

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)

You're in for it now! Saved a custom character in Character Customization.

Now it's time to destroy you. Dealt an overall total of 1000 damage while in rage mode. (Excluding offline player battles)

Tools of the Architect Choose 50 different Daedalus Hammer enchantments

Perfect Freeflow 2.0 Perform a perfect combo including all of Batman's combat moves (any play mode)

A Feast for Two Endurance Co-op Challenge: Eat the meat of 3 bears with your partner

No pain, no gain! Dealt 2000 damage in Practice mode.

A Deadly Debut Performed a Guillotine execution.

EXTRA: Astral Stair Reach Level 80 in Inverse Inlaid Library.

Abominizer Defeat all four abominations.

Double the Action Complete Campaign Mode In Co-Op Mode

Just Your Shadow Distract the same enemy 3 times with shinobi bells

A Jack of One Trade is a Master of All Mastered one of the four stat types.

Should've Gone to the Motel Reunited Laura and Max

Sequel-Bait Discover Dr. Gurgula's hideout in the Human Haven.

For a Better Tomorrow Learn all cub skills.

I Can Handle the Truth! Complete all available objective in Truth Quest

Hold the line! Kill 10 enemies while attacking or defending a control point in Supremacy

Invincible Defeat 2,500 enemies in single-player mode.

Rooting For You Win a kitchen in Versus Mode

Easter Egg Have your cubs eat the Easter Egg.

Hold the Onions Clear an Infernal Gate without taking damage

Battery of Batteries Make the maximum possible number of batteries in the first camera level

I didn’t realise they were optional. Complete all the optional challenge levels

Full shutdown Complete the simulation shutdown sequence

Qi Gong: Breath Receive the highest score-based shrine reward for the first time.

Debris and Ashes Reach the Observatory.

Upgrades Available Improved your gear 30 times through tinkering and mods.
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Passion for Fashion Obtain all costumes.

Float like a butterfly... Win the final battle without taking any damage in Monster Escape (playing as the VR Monster).

I Siwa you did there Make the target officer's death look like an accident (Mission 5)

New Shadow In 'The Savior', complete the mission without being spotted

Remember The Fallen Collect All Fallen Striders

Something From Everyone Unlock each standard Keepsake

Casual Reader Find 50% of the war diaries

I'll live on, together with my sins. Finished Chapter 12 of The Dark Awakens.

Castle of Lust: Seized Completed the castle Palace.

The Semi-Pro Trophy Win 'The Semi-Pro Trophy' event in Tour on gold star difficulty.

Bark code Go for a walk in the barcode forest

Warning: Wide Load! Widened a car's body.

Reminiscence Recreate all scenes in the "Déjà-Vu" Extra Op

I would do well to follow your example. Achieved a 30-hit chain during Operation Rebellion in The Dark Awakens.

For the greater good! Kill 5,000 enemies.

A Light in the Darkness Blow the fire

Ultimate Warrior Reach rank 20 with all roles.

Green Teen Finish Shadows of Rose on at least Casual difficulty.

Starsenal Obtain all weapons (must load grenade launcher with all shell types).

Chase the Morning Add a sumi-e to the Hideout