10 A House DividedHack a geth collective
10 BattlemasterGain the loyalty of the krogan
10 Big Game HunterThresher Maw defeated
10 BrawlerShoot and kill 20 enemies while they're knocked back by a punch
10 Cat's in the CradleGain the loyalty of the Assassin
10 CatharsisGain the loyalty of the biotic Convict
10 DoppelgangerHelp the Justicar resolve her mission
10 ExplorerVisit 100% of the planets in an unexplored cluster
10 Fade AwayGain the loyalty of Archangel
10 Friend or FoeObtain geth technology
10 Ghost of the FatherGain the loyalty of the Cerberus Operative
10 Head HunterPerform 30 headshot kills with any weapon on humanoid targets
10 MercilessMake 20 enemies scream as they fall or are set on fire
10 Power GamerReach Level 30 with one character
10 ScientistComplete any research project in the Normandy's laboratory
10 TacticianHit 20 different targets with multiple biotic powers to combine the effects
10 The ArchangelSuccessfully recruit Archangel
10 The AssassinSuccessfully recruit the Assassin
10 The ConvictSuccessfully recruit the biotic Convict
10 The CureGain the loyalty of the Professor
10 The JusticarSuccessfully recruit the Justicar
10 The KroganSuccessfully recruit the krogan
10 The ProdigalGain the loyalty of the Cerberus Officer
10 The ProfessorSuccessfully recruit the Professor
10 The QuarianSuccessfully recruit the quarian
10 TreasonGain the loyalty of the quarian
10 Very ElusiveReturn to active duty
125 Mission AccomplishedSave humanity throughout the galaxy from certain annihilation
15 Against All OddsSurvive suicide mission
15 Highly TrainedView all advanced combat training videos at Shepard's private terminal.
15 Incineration SpecialistIncinerate the armor of 25 enemies
15 Master at ArmsKill enemies with 5 different heavy weapons during the game
15 OperativeComplete a mission discovered by scanning an unexplored world
15 Overload SpecialistDisrupt the shields of 25 enemies
15 Power FullEvolve any power
15 ScholarUnlock 15 new Mass Effect 2 codex entries
15 TechnicianObtain 10 technology upgrades
15 Warp SpecialistWarp the barriers of 25 enemies
15 Weapon SpecialistFully upgrade a weapon
25 Colony DefenseDefend a human colony from attack
25 Ghost ShipComplete the investigation of a derelict alien vessel
5 FashionistaPersonalize your armor in your quarters on the Normandy
5 Missing in ActionSave your crew from an overwhelming attack
5 ProspectorRetrieve mineral resources by scanning and probing a planet in the galaxy map
50 AgentComplete 5 missions discovered by scanning unexplored worlds
50 ParamourSuccessfully pursue a relationship with a teammate
50 Suicide MissionUse the Omega 4 Relay
75 InsanityComplete the game on the
75 Long Service MedalComplete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1
75 No One Left BehindKeep your team alive through the suicide mission