Successfully recruit the biotic Convict
Complete a mission discovered by scanning an unexplored world
Gain the loyalty of the mercenary ("Cerberus Pack" downloadable content)
Evolve any power
Gain the loyalty of the thief
Obtain 10 technology upgrades
Successfully recruit Archangel
Complete any research project in the Normandy's laboratory
Successfully recruit the Professor
Perform 30 headshot kills with any weapon on humanoid targets
Make 20 enemies scream as they fall or are set on fire
Unlock 15 new Mass Effect 2 codex entries
View all advanced combat training videos at Shepard's private terminal.
Retrieve mineral resources by scanning and probing a planet in the galaxy map
Return to active duty
Personalize your armor
Save your crew from an overwhelming attack
Acquire all trophies
Successfully recruit the Assassin
Defend a human colony from attack
Gain the loyalty of the Cerberus Officer
Gain the loyalty of the Cerberus Operative
Gain the loyalty of the biotic Convict
Gain the loyalty of the krogan
Gain the loyalty of Archangel
Gain the loyalty of the Professor
Gain the loyalty of the quarian
Help the Justicar resolve her mission
Gain the loyalty of the Assassin
Obtain geth technology
Hack a geth collective
Complete the investigation of a derelict alien vessel
Use the Omega 4 Relay
Save humanity throughout the galaxy from certain annihilation
Survive suicide mission
Complete the game on the "Insanity" difficulty level without changing the setting
Keep your team alive through the suicide mission
Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1
Successfully pursue a relationship with a teammate
Shoot and kill 20 enemies while they're knocked back by a punch
Thresher Maw defeated
Hit 20 different targets with multiple biotic powers to combine the effects
Kill enemies with 5 different heavy weapons during the game
Disrupt the shields of 25 enemies
Warp the barriers of 25 enemies
Incinerate the armor of 25 enemies
Complete 5 missions discovered by scanning unexplored worlds
Visit 100% of the planets in an unexplored cluster
Reach Level 30 with one character
Fully upgrade a weapon
Successfully recruit the Krogan
Confront the Shadow Broker
Collect 6 Cerberus data packets scattered across Aite
Successfully shut down the rogue VI in Project Overlord
Complete the Arrival DLC ("Arrival" downloadable content)
Survive all five waves in the battle for Object Rho ("Arrival" downloadable content)
Rescue Dr. Amanda Kenson without attracting hostile attention ("Arrival" downloadable content)
Successfully recruit the Quarian
Successfully recruit the Justicar
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