Complete the game in Impossible Mode.
See the alternative ending on any difficulty mode.
Complete the game on Medium difficulty or above.
Complete New Game Plus on any difficulty mode.
Fully upgrade all weapons and equipment.
Kill 30 enemies with the Force Gun.
Kill 30 enemies with the Contact Beam.
Kill 30 enemies with the Pulse Rifle.
Kill 30 enemies with the Line Gun.
Kill 30 enemies with the Flamethrower.
Kill 30 enemies with the Ripper.
Pick up a Marker fragment for the first time.
Complete Chapter 12 on any difficulty setting.
Beat the game using only the Plasma Cutter.
Kill the Hive Mind.
Complete Chapter 11 on any difficulty setting.
Collect all Schematics.
Install every weapon upgrade.
Discover the Hunter's origins.
Pursue Nicole's investigation.
Create the Master Security Override.
Find the Peng Treasure.
Complete Chapter 10 on any difficulty setting.
Collect 150 Logs.
Complete Level 6 in Zero-G Basketball.
Complete Chapter 9 on any difficulty setting.
Survive the Shooting Gallery.
Complete Chapter 8 on any difficulty setting.
Kill the Leviathan Remnant.
Complete Chapter 7 on any difficulty setting.
Complete Chapter 6 on any difficulty setting.
Kill the Leviathan.
Dismember 500 Limbs.
Place 25 items in Storage.
Own every weapon in the game.
Complete Chapter 5 on any difficulty setting.
Collect 75 Logs.
Kill 10 enemies with a stomp attack.
Complete Chapter 4 on any difficulty setting.
Rip off a dangling limb using Kinesis.
Use Stasis on 50 enemies.
Kill a Brute.
Complete Chapter 3 on any difficulty setting.
Complete Chapter 2 on any difficulty setting.
Pin an enemy.
Complete Chapter 1 on any difficulty setting.
Dismember 50 Limbs.