There are thirty three regular achievements in Bioshock 2 for the Xbox 360. Here is the list of regular achievements you can earn in the base game of Bioshock 2.
Against All Odds (30 points) – Finish the game on the hardest difficulty level
All Plasmids (20 points) – Find or purchase all 11 basic Plasmid types
All Weapon Upgrades (20 points) – Find all 14 Power to the People weapon upgrades in the game
Big Brass Balls (25 points) – Finish the game without using Vita-Chambers
Big Spender (15 points) – Spend 2000 dollars at Vending Machines
Bought a Slot (5 points) – Buy one Plasmid or Tonic Slot at a Gatherer’s Garden
Choose the Impossible (50 points) – Achieve Rank 40
Dealt with Every Little Sister (50 points) – Either Harvest or Save every Little Sister in the game
Disgusting Frankenstein (10 points) – Become a Big Daddy for the first time in a non-private match
First Research (5 points) – Research a Splicer with the Research Camera
Fully Upgraded a Plasmid (10 points) – Fully upgrade one of your Plasmids to the level 3 version at a Gatherer’s Garden
Fully Upgraded a Weapon (10 points) – Install the third and final upgrade to any of your weapons
Grand Daddy (25 points) – Defeat 3 Big Daddies without dying during the fight
Little Moth (20 points) – Achieve Rank 20
Man About Town (10 points) – Play at least one non-private match on each multiplayer map
Master Gatherer (30 points) – Gather 600 ADAM with Little Sisters
Master Protector (15 points) – Get through a Gather with no damage and no one getting to the Little Sister
Master Hacker (20 points) – Hack 30 machines at a distance with the Hack Tool
Max Plasmid Slots (10 points) – Fully upgrade to the maximum number of Plasmid Slots
Mother Goose (20 points) – Save your first Little Sister in a non-private match
“Mr Bubbles – No!” (20 points) – Take down your first Big Daddy in a non-private match
One Research Track (20 points) – Max out one Research Track
Parasite (10 points) – Achieve Rank 10
Prolific Hacker (20 points) – Successfully hack at least one of every type of machine
Proving Grounds (20 points) – Win your first non-private match
Rapture Historian (40 points) – Find 100 audio diaries
Research Master (20 points) – Max out research on all 9 research subjects
Skin Job (20 points) – Achieve Rank 30
Trap Master (15 points) – Kill 30 enemies using only Traps
Two-Bit Heroics (10 points) – Complete your first trial in a non-private match
Unnatural Selection (10 points) – Score your first kill in a non-private match
Upgraded a Weapon (10 points) – Upgrade any weapon at a Power to the People Station
Welcome to Rapture (10 points) – Complete your first non-private match
There are also seventeen secret achievements you can earn for an additional 375 gamer points.
9-Irony (5 points) – Paid your respects to the founder of Rapture
Adopted a Little Sister (5 points) – Adopted a new Little Sister for the first time
Confronted Grace (10 points) – Confronted Lamb’s lieutenant in Pauper’s Drop
Counterattack (5 points) – Killed an enemy with its own projectile
Daddy’s Home (10 points) – Found your way back into the ruins of Rapture
Defeated the Preacher (20 points) – Defeated the Preacher
Distance Hacker (5 points) – Used the Hack Tool to hack an object at a distance
Escape (100 points) – Escaped Rapture
Found Lamb’s Hideout (20 points) – Gained access to Lamb’s stronghold
Heading to the Surface (25 points) – Headed to the surface on the side of Sinclair’s escape pod
Look at You, Hacker (15 points) – Killed 50 enemies using only hacked Security
Nose for News (20 points) – Uncovered the secret of Dionysus Park
Protector (20 points) – Defended yourself against Lamb’s assault in the train station
Reunion (50 points) – Reunited with your original Little Sister
Savior (25 points) – Saved every Little Sister and spared Grace, Stanley and Gil
Sinclair’s Solution (20 points) – Joined forces with Sinclair in Ryan Amusements
Unbreakable (20 points) – Defended yourself against the Big Sister without dying