StudioOddity

Two's Company, Four's a Party Complete any Adventure level with 4 players.

Blood Donor Pass 5000 levels in Bloody Palace Mode

Appease the Volcano Gods An NPC is destined to die in a trial by fire.

Harmonic Convergence Pick up all traveler instruments simultaneously with your signalscope.

Gasmoxian Slug Beat all of Nitros Oxide's times in Time Trial Mode.

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Wonderful! Perform a 30-hit combo. (Arcade/online only)

Woah! Earn all the other trophies.

Real Estate Agent Have all possible town NPCs living in your world.

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

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

Classic Leaderboard Champ Ever try the Ranking Challenge at the Game Center? Give it a shot! It's important to always challenge yourself, even when it comes to games.

Wallace the novice! Complete your first online match.

That Party was Ace Ace every Adventure level in The Journey Home.

Go Figure Plant ShadowChild's figurine.

Help Desk Get the Blade lobby desk clerk to help you bypass security.

The Greatest Warriors Unlocked all characters and variations!

Act 3 Cleaner Complete all Act 3 maps on Nightmare difficulty.

Hellish Honor Achieve an S Rank on all missions (any difficulty or character)

Extract The Data... Get the data that Pritchard is after from within the Palisade Blade.

Expose The Truth! Decide what to do with the evidence you uncovered.

Stars and Cars Collide Complete and Win a Mayhem event in Arcade mode.
Reward: Profile Avatar

Round the Riverbend Find the Secret in Blood Stream.

1-Upsmanship Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 1)

Hell Hath No Fury… Finish the game on Dante Must Die Mode with any character

Bloody Hell Complete Bloody Palace Mode

Start of Something Good Befriend your first Perfect Partner character.

Cook Cook 10 different recipes.

Heaven Can Wait Finish the game on Heaven or Hell Mode with any character

Rare and Exceptional Purchase Armor, a Charm, or Vanity Gear from Masujiro the Melodious in New Game+.

Hard Headed Collect 1000 helmets

King of Bling Earn ALL of the Clear Gems

Combo Machine Perform 20 auto combos. (Arcade/online only)

Sack the Postman Post all 6 invitations for the party.

Pit Master Discover and fight Hidden Kombatant 3 in Arcade Ladder

Enemy Buster Defeat 100,000 enemies.

Barely Made It Jump over a Cultist Bear Trap without triggering it.

Twin Dragons Defeat the Twins simultaneously.

Reinvent the Weapon Wheel Re-collect all of the weapons on the Weapon Wheel

Bleeding Knuckles Reach a lifetime score of 5,000,000.

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Trophy Triumphant Acquire all trophies.

Clean Sweep Complete the System Rift Jensen Story without killing anyone.

It's a Trap! In Shi No Numa, kill at least one zombie with three different traps in a single round.

Wreckognised Earn an S Rank Wreckognition rating or higher in any event
Reward: Profile Avatar

Platinum Trophy Unlock all trophies

Hey, what's this button do? Press the ejection button in the ship.

Overachiever Watch the 100% bonus ending