| Achievement | How to unlock
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| A House Divided ( 10 points ) | Hack a geth collective.
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| Against All Odds ( 15 points ) | Survive suicide mission.
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| Agent ( 50 points ) | Complete 5 missions discovered by scanning unexplored worlds.
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| Battlemaster ( 10 points ) | Gain the loyalty of the krogan.
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| Big Game Hunter ( 10 points ) | Thresher Maw defeated.
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| Brawler ( 10 points ) | Shoot and kill 20 enemies while they're knocked back by a punch.
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| Cat's in the Cradle ( 10 points ) | Gain the loyalty of the Assassin.
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| Catharsis ( 10 points ) | Gain the loyalty of the biotic Convict.
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| Colony Defense ( 25 points ) | Defend a human colony from attack.
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| Doppelganger ( 10 points ) | Help the Justicar resolve her mission.
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| Explorer ( 10 points ) | Visit 100% of the planets in an unexplored cluster.
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| Fade Away ( 10 points ) | Gain the loyalty of Archangel.
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| Fashionista ( 5 points ) | Personalize your armor in your quarters on the Normandy.
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| Friend or Foe ( 10 points ) | Obtain geth technology.
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| Ghost Ship ( 25 points ) | Complete the investigation of a derelict alien vessel.
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| Ghost of the Father ( 10 points ) | Gain the loyalty of the Cerberus Operative.
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| Head Hunter ( 10 points ) | Perform 30 headshot kills with any weapon on humanoid targets.
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| Highly Trained ( 15 points ) | View all advanced combat training videos at Shepard's private terminal.
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| Incineration Specialist ( 15 points ) | Incinerate the armor of 25 enemies.
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| Insanity ( 75 points ) | Complete the game on the "Insanity" difficulty level without changing the setting.
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| Long Service Medal ( 75 points ) | Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1.
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| Master at Arms ( 15 points ) | Kill enemies with 5 different heavy weapons during the game.
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| Merciless ( 10 points ) | Make 20 enemies scream as they fall or are set on fire.
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| Missing in Action ( 5 points ) | Save your crew from an overwhelming attack.
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| Mission Accomplished ( 125 points ) | Save humanity throughout the galaxy from certain annihilation.
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| No One Left Behind ( 75 points ) | Keep your team alive through the suicide mission.
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| Operative ( 15 points ) | Complete a mission discovered by scanning an unexplored world.
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| Overload Specialist ( 15 points ) | Disrupt the shields of 25 enemies.
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| Paramour ( 50 points ) | Successfully pursue a relationship with a teammate.
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| Power Full ( 15 points ) | Evolve any power.
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| Power Gamer ( 10 points ) | Reach Level 30 with one character.
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| Prospector ( 5 points ) | Retrieve mineral resources by scanning and probing a planet in the galaxy map.
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| Scholar ( 15 points ) | Unlock 15 new Mass Effect 2 codex entries.
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| Scientist ( 10 points ) | Complete any research project in the Normandy's laboratory.
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| Suicide Mission ( 50 points ) | Use the Omega 4 Relay.
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| Tactician ( 10 points ) | Hit 20 different targets with multiple biotic powers to combine the effects.
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| Technician ( 15 points ) | Obtain 10 technology upgrades.
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| The Archangel ( 10 points ) | Successfully recruit Archangel.
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| The Assassin ( 10 points ) | Successfully recruit the Assassin.
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| The Convict ( 10 points ) | Successfully recruit the biotic Convict.
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| The Cure ( 10 points ) | Gain the loyalty of the Professor.
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| The Justicar ( 10 points ) | Successfully recruit the Justicar.
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| The Krogan ( 10 points ) | Successfully recruit the krogan.
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| The Prodigal ( 10 points ) | Gain the loyalty of the Cerberus Officer.
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| The Professor ( 10 points ) | Successfully recruit the Professor.
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| The Quarian ( 10 points ) | Successfully recruit the quarian.
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| Treason ( 10 points ) | Gain the loyalty of the quarian.
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| Very Elusive ( 10 points ) | Return to active duty.
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| Warp Specialist ( 15 points ) | Warp the barriers of 25 enemies.
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| Weapon Specialist ( 15 points ) | Fully upgrade a weapon.
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