Gain the loyalty of the Professor
Kill enemies with 5 different heavy weapons during the game
Gain the loyalty of the biotic Convict
Gain the loyalty of the Cerberus Operative
Hit 20 different targets with multiple biotic powers to combine the effects
Defend a human colony from attack
Successfully recruit the krogan
Disrupt the shields of 25 enemies
Perform 30 headshot kills with any weapon on humanoid targets
Successfully recruit Archangel
Gain the loyalty of the mercenary
Obtain 10 technology upgrades
Complete any research project in the Normandy's laboratory
Successfully recruit the Professor
Unlock 15 new Mass Effect 2 codex entries
Successfully recruit the biotic Convict
Make 20 enemies scream as they fall or are set on fire
Visit 100% of the planets in an unexplored cluster
Complete a mission discovered by scanning an unexplored world
Retrieve mineral resources by scanning and probing a planet in the galaxy map
View all advanced combat training videos at Shepard's private terminal.
Return to active duty
Personalize your armor in your quarters on the Normandy
Save your crew from an overwhelming attack
Finish the game on Insanity without changing difficulty after leaving Earth.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
Complete "Kindred Judgment"
Use the special power of Auriel's Bow
Complete Episode 3: "Long Road Ahead"
Complete chapter 7 of episode 3.
Complete chapter 6 of episode 3.
Complete chapter 5 of episode 3.
Complete chapter 4 of episode 3.
Complete chapter 3 of episode 3.
Complete chapter 2 of episode 3.
Complete chapter 1 of episode 3.
Kill 5,000 enemies.
Overload the shields of 100 enemies.
Solve the first riddle
Retrieve your stolen goods
Perform any combination of 50 biotic combos or tech bursts.
Played the game from start to finish in Hardcore Mode.
Reach level 25.
Complete 25 quests while playing with at least one co-op partner.
Kill 50 human enemies.
Sever 100 limbs.
Complete act II.
Complete Act 1 in another way.
Destroy 5 chase vehicles (in a single instance of Super Ethical PR Opportunity).
Destroy a mouse ATV during Sexy Kitten Yarngasm.