Save humanity throughout the galaxy from certain annihilation
Unlocked: 25 Jan 2011 14:03:27
Survive suicide mission
Unlocked: 25 Jan 2011 14:02:09
Use the Omega 4 Relay
Unlocked: 25 Jan 2011 12:47:04
Paramour
50Successfully pursue a relationship with a teammate
Unlocked: 25 Jan 2011 12:44:05
Hack a geth collective
Unlocked: 25 Jan 2011 12:17:51
Fully upgrade a weapon
Unlocked: 24 Jan 2011 15:40:05
Obtain geth technology
Unlocked: 24 Jan 2011 15:38:44
Brawler
10Shoot and kill 20 enemies while they're knocked back by a punch
Unlocked: 24 Jan 2011 15:23:18
Catharsis
10Gain the loyalty of the biotic Convict
Unlocked: 24 Jan 2011 14:44:00
Treason
10Gain the loyalty of the quarian
Unlocked: 24 Jan 2011 11:47:57
Gain the loyalty of the Assassin
Unlocked: 22 Jan 2011 12:40:22
Fade Away
10Gain the loyalty of Archangel
Unlocked: 22 Jan 2011 12:07:27
Agent
50Complete 5 missions discovered by scanning unexplored worlds
Unlocked: 22 Jan 2011 11:28:19
Doppelganger
10Help the Justicar resolve her mission
Unlocked: 22 Jan 2011 11:03:44
The Cure
10Gain the loyalty of the Professor
Unlocked: 22 Jan 2011 09:03:50
Battlemaster
10Gain the loyalty of the krogan
Unlocked: 21 Jan 2011 13:57:29
Thresher Maw defeated
Unlocked: 21 Jan 2011 13:53:28
The Justicar
10Successfully recruit the Justicar
Unlocked: 21 Jan 2011 12:50:08
Power Full
15Evolve any power
Unlocked: 21 Jan 2011 11:46:21
Ghost Ship
25Complete the investigation of a derelict alien vessel
Unlocked: 20 Jan 2011 16:36:57
Gain the loyalty of the Cerberus Operative
Unlocked: 20 Jan 2011 15:29:05
The Assassin
10Successfully recruit the Assassin
Unlocked: 20 Jan 2011 14:02:49
The Prodigal
10Gain the loyalty of the Cerberus Officer
Unlocked: 19 Jan 2011 11:23:38
The Quarian
10Successfully recruit the quarian
Unlocked: 17 Jan 2011 23:41:17
The Krogan
10Successfully recruit the krogan
Unlocked: 17 Jan 2011 15:37:52
Defend a human colony from attack
Unlocked: 17 Jan 2011 15:26:49
Technician
15Obtain 10 technology upgrades
Unlocked: 17 Jan 2011 12:51:36
The Convict
10Successfully recruit the biotic Convict
Unlocked: 17 Jan 2011 12:49:14
Explorer
10Visit 100% of the planets in an unexplored cluster
Unlocked: 17 Jan 2011 12:18:05
Operative
15Complete a mission discovered by scanning an unexplored world
Unlocked: 17 Jan 2011 12:03:08
Retrieve mineral resources by scanning and probing a planet in the galaxy map
Unlocked: 17 Jan 2011 11:48:18
Scientist
10Complete any research project in the Normandy's laboratory
Unlocked: 17 Jan 2011 11:35:17
Successfully recruit the Professor
Unlocked: 17 Jan 2011 11:23:34
Successfully recruit Archangel
Unlocked: 16 Jan 2011 08:40:03
Merciless
10Make 20 enemies scream as they fall or are set on fire
Unlocked: 16 Jan 2011 08:35:42
Head Hunter
10Perform 30 headshot kills with any weapon on humanoid targets
Unlocked: 16 Jan 2011 08:32:06
Scholar
15Unlock 15 new Mass Effect 2 codex entries
Unlocked: 16 Jan 2011 01:22:07
View all advanced combat training videos at Shepard's private terminal.
Unlocked: 16 Jan 2011 00:40:17
Very Elusive
10Return to active duty
Unlocked: 14 Jan 2011 11:37:20
Personalize your armor in your quarters on the Normandy
Unlocked: 14 Jan 2011 11:33:17
Save your crew from an overwhelming attack
Unlocked: 14 Jan 2011 11:00:11
Insanity
75Complete 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
Tactician
10Hit 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
Power Gamer
10Reach Level 30 with one character
Revenge!
15Gain the loyalty of the mercenary
Gain the loyalty of the thief