| Achievement | How to unlock
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| All Star | Get 100 Stars in S.T.A.R. Lab Mode.
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| Almost There | Complete 50% of Story Mode.
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| Arkham City Lockdown | Defeat every Villain With Batman.
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| Around and Around We Go | Perform every level interaction once.
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| Around The World | Knock opponent through all transitions across all levels.
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| Beginner's Luck! | Win a single online match.
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| Breaking Records | Win 100 complete Online Matches.
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| Buddy System | Enter Online Practice with someone on your friends list.
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| Bull in a China Shop | Cause maximum damage in all Arenas (does not include Practice mode).
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| Cosplay | Unlock a costume in the Archives.
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| Feel the Burn! | Perform every Meter Burn special move of every character.
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| FINISHED | Win a match with the super move of any character.
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| Go Sit in the Corner | Win a multiplayer match with a timeout.
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| Gonna Need More Closet Space | Unlock All costumes in the Archives.
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| Groundbreaking | Use every interactable and win in a multiplayer match.
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| Heavy Hitter | Perform a 10 hit combo with every character.
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| Hoarder | Unlock everything in the Archives.
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| Holy Knockout Batman! | Win 10 complete Ranked matches.
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| I Can Back it Up | Equip a new Background Image.
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| I Conquered All | Beat All S.T.A.R. Lab Missions (Excluding DLC).
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| I Voted! | Vote Correctly in a KOTH match.
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| Iconic Representation | Equip a new Icon.
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| It Has Begun | Complete 1 S.T.A.R. Lab Mission.
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| Justice for All | Complete 100% of Story Mode.
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| Learning is Fun | Complete Tutorial.
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| Looking Good! | Equip a new Character Portrait.
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| Lucky Break | Win 1 complete Ranked match.
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| Metahuman | Perform every special move of every character.
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| Mini-Master | Win all story mode minigames.
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| Only a Real Master | Make a comeback when at low health (10% or less).
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| Over The Top! | Play 200 complete Online Matches.
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| Overachiever | Get 3 stars on 1 S.T.A.R. Lab Mission.
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| Overthrown | Dethrone the King in an online match.
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| Perfect Aim | Win a match as Deathstroke without missing a shot (minimum 12 shots).
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| Practice Makes Perfect | Enter Practice Mode.
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| Rise to the Top | Complete Classic Battle with any character.
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| Sidekick | Reach Level 10.
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| Statistical Advantage | View Your Hero Card.
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| Streak Ender | Defeat a Survivor.
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| Superhuman! | Perform every character's supermove.
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| The Caped Crusader | Win with Batman using every special move and his Supermove.
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| The Hero We Deserve | Reach Level 100.
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| Throwdown! | Perform 8 throws and win in a multiplayer match.
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| Top Rung | Complete Classic Battle with all characters.
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| Tourist | Send an opponent through all three Metropolis transitions in one fight.
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| True Marksman | Win a match with Green Arrow using only arrows.
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| Ultimate Battler | Complete Battle Mode.
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| Unstoppable Force | Win a Clash sequence with any character.
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| World's Finest | Complete All S.T.A.R. Lab Missions with 3 Stars.
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| Wrecking Ball | Knock an opponent through a transition.
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