Complete each achievement to receive the allotted gamerscore:
Missing in Action (5) - Save your crew from an overwhelming attack.
The Convict (10) - Successfully recruit the biotic Convict.
The Krogan (10) - Successfully recruit the krogan.
The Archangel (10) - Successfully recruit Archangel.
The Professor (10) - Successfully recruit the Professor.
The Quarian (10) - Successfully recruit the quarian.
The Justicar (10) - Successfully recruit the Justicar.
The Assassin (10) - Successfully recruit the Assassin.
Very Elusive (10) - Return to active duty.
Friend or Foe (10) - Obtain geth technology.
Colony Defense (25) - Defend a human colony from attack.
Battlemaster (10) - Gain the loyalty of the krogan.
Fade Away (10) - Gain the loyalty of Archangel.
The Cure (10) - Gain the loyalty of the Professor.
Treason (10) - Gain the loyalty of the quarian.
The Prodigal (10) - Gain the loyalty of the Cerberus Officer.
Ghost of the Father (10) - Gain the loyalty of the Cerberus Operative.
Catharsis (10) - Gain the loyalty of the biotic Convict.
Doppelganger (10) - Help the Justicar resolve her mission.
Cat's in the Cradle (10) - Gain the loyalty of the Assassin.
A House Divided (10) - Hack a geth collective.
Ghost Ship (25) - Complete the investigation of a derelict alien vessel.
Suicide Mission (50) - Use the Omega 4 Relay.
Mission Accomplished (125) - Save humanity throughout the galaxy from certain annihilation.
Against All Odds (15) - Survive suicide mission.
Insanity (75) - Complete the game on the "Insanity" difficulty level without changing the setting.
No One Left Behind (75) - Keep your team alive through the suicide mission.
Long Service Medal (75) - Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1.
Paramour (50) - Successfully pursue a relationship with a teammate.
Head Hunter (10) - Perform 30 headshot kills with any weapon on humanoid targets.
Brawler (10) - Shoot and kill 20 enemies while they're knocked back by a punch.
Big Game Hunter (10) - Thresher Maw defeated.
Tactician (10) - Hit 20 different targets with multiple biotic powers to combine the effects.
Agent (50) - Complete 5 missions discovered by scanning unexplored worlds.
Prospector (5) - Retrieve mineral resources by scanning and probing a planet in the galaxy map.
Explorer (10) - Visit 100% of the planets in an unexplored cluster.
Power Gamer (10) - Reach Level 30 with one character.
Scholar (15) - Unlock 15 new Mass Effect 2 codex entries.
Technician (15) - Obtain 10 technology upgrades.
Master at Arms (15) - Kill enemies with 5 different heavy weapons during the game.
Merciless (10) - Make 20 enemies scream as they fall or are set on fire.
Overload Specialist (15) - Disrupt the shields of 25 enemies.
Warp Specialist (15) - Warp the barriers of 25 enemies.
Incineration Specialist (15) - Incinerate the armor of 25 enemies.
Operative (15) - Complete a mission discovered by scanning an unexplored world.
Weapon Specialist (15) - Fully upgrade a weapon.
Scientist (10) - Complete any research project in the Normandy's laboratory.
Fashionista (5) - Personalize your armor in your quarters on the Normandy.
Power Full (15) - Evolve any power.
Highly Trained (15) - View all advanced combat training videos at Shepard's private terminal.
Additionally, there is one Zaeed DLC Achievement:
Revenge! (15) - Gain the loyalty of the mercenary.
Additionally, there is one Kasumi: Stolen Memory Achievement:
Broken, Blind and Bedlam (15) - Gain the loyalty of the Thief.
Additionally, there are two Overlord DLC achievements:
Data Hound (10) - Collect 6 Cerberus data packets scattered across Aite.
Digital Exorcist (15) - Successfully shut down the rouge VI in Project Overlord.
Additionally, there is one Kasumi Goto DLC Loyalty achievement:
Broke, Blind and Bedlam (15) - Gain the loyalty of the thief.
Additionally, there five Lair of the Shadow Broker Achievements:
Catching Up (25) - Reminisce with Liara on the Normandy.
Most Dangerous Game (35) - Defeat the Shadow Broker's Assassin.
Detail Orientated (40) - Use all information terminals in the Shadow Broker's stronghold.
Heart of Darkness (50) - Confront the Shadow Broker.
The Hard Way (50) - Complete the Shadow Broker Mission pack on Hardcore or Insanity.
Additionally, there is one Cerberus Network DLC achievement:
Revenge! (15) - Gain the loyalty of the mercenary.
Unlock Alternate Color Schemes and Loyalty Skills
New Colors for Party Members - Complete a party member's loyalty mission.
Unlock Loyalty Skills - Complete the Loyalty missions for each of your party members to unlock their individuals skills.
Successfully complete the game. You can start a new game session with a cleared saved game file with the following bonuses: choose Loyalty Bonus Skill at the start; retain Skill Points from first session; retain level and experience points from first session; Renegade/Paragon points reset to neutral; +25% experience bonus for all characters; and your previous weapons and armor (but no upgrades).
Have a saved game file from the original Mass Effect and use that profile in Mass Effect 2 to get the following bonuses: experience points based on your previous level; resources for weapon and armor upgrades; and Paragon and Renegade Points (including a bonus if you have the maximum amount of either Paragon or Renegade points).
Comedic Surveying Responses
Go to the Local Cluster and proceed to survey Uranus. Instead of the usual "Probe Launched," the voice will instead make Uranus jokes such as "Probing Uranus" or "Really Commander?"
During the course of the game you unlock training to redistribute your skill points. Talent Mastery adds a certain percentage to your paragon / renegade. Respec and distribute into your mastery over and over until paragon and renegade are full.
Unlock New Character Bonuses
200k Credits - Start New Game after 1 Playthrough.
50k of each Resource - Start New Game after 1 Playthrough.
Bonus 25% Experience - Beat the game on any difficulty.
Unlock Imported Mass Effect Character Bonuses
100k Credits - Import a Mass Effect character with the Rich Achievement.
10k of each Resource - Import a level 60 Mass Effect character.
4k Experience Points - Import a level 60 Mass Effect character.
50k Credits - Import a level 60 Mass Effect character.
2k Experience Points - Import a level 50 Mass Effect character.
30k Credits - Import a level 50 Mass Effect character.
5k of each Resource - Import a level 50 Mass Effect character.
Start as a level 5 - Import a level 60 Mass Effect character.