Save humanity throughout the galaxy from certain annihilation
Survive suicide mission
Use the Omega 4 Relay
Successfully pursue a relationship with a teammate
View all advanced combat training videos at Shepard's private terminal.
Visit 100% of the planets in an unexplored cluster
Successfully shut down the rogue VI in Project Overlord
Hack a geth collective
Gain the loyalty of the krogan
Thresher Maw defeated
Gain the loyalty of the Professor
Evolve any power
Obtain geth technology
Gain the loyalty of the biotic Convict
Successfully recruit the Quarian
Confront the Shadow Broker
Gain the loyalty of the Cerberus Officer
Complete the investigation of a derelict alien vessel
Obtain 10 technology upgrades
Gain the loyalty of Archangel
Gain the loyalty of the Cerberus Operative
Retrieve mineral resources by scanning and probing a planet in the galaxy map
Gain the loyalty of the thief
Successfully recruit the Justicar
Successfully recruit the Assassin
Successfully recruit the Krogan
Defend a human colony from attack
Complete any research project in the Normandy's laboratory
Unlock 15 new Mass Effect 2 codex entries
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
Successfully recruit the biotic Convict
Successfully recruit Archangel
Return to active duty
Personalize your armor
Save your crew from an overwhelming attack
Acquire all trophies
Gain the loyalty of the quarian
Help the Justicar resolve her mission
Gain the loyalty of the Assassin
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
Shoot and kill 20 enemies while they're knocked back by a punch
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 a mission discovered by scanning an unexplored world
Complete 5 missions discovered by scanning unexplored worlds
Reach Level 30 with one character
Fully upgrade a weapon
Collect 6 Cerberus data packets scattered across Aite
Gain the loyalty of the mercenary ("Cerberus Pack" downloadable content)
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)
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