Dreamkiller

Practitioner

Complete Chapter 1 on any difficulty.

Operative

Complete Chapter 2 on any difficulty.

Specialist

Complete Chapter 3 on any difficulty.

Master

Complete Chapter 4 on any difficulty.

Draconist

Kill 400 Enemies while using the Dragon's Grasp.

Freezer

Kill 400 Enemies while using the Hailstorm.

Shocker

Kill 100 Enemies while using Shock Therapy.

Stormer

Kill 400 Enemies while using Shock Therapy.

Lighter

Kill 100 Enemies while using the Sunbeam.

Paladin

Kill 400 Enemies while using the Sunbeam.

Bomber

Kill 100 Enemies while using the Dream Cleaner.

Technician

Kill 400 Enemies while using the Dream Cleaner.

Absolute Threshold

Achieve the Gold weapon upgrade rank on the Insanity difficulty.

Dissociative Disorder

Manic Episode

Enter Berserker Rage at least once in each level of the game in Story mode.

Aversion Therapy

Complete a level on any difficulty without dying.

Immortal

Complete every level on any difficulty without dying.

Hallucinations

OCD

Use every weapon at least once in any level of the game in Story mode.

Latent Abilities

Complete every level on any difficulty without dying in the Subconscious.

Opiophobia

Complete one level without receiving any Health pickups.

Wisdom

Find and enter in all of the Secret areas in any one level of the game.

Poor Sleeper

Complete Story mode on the Bad Dream difficulty.

Somnambulist

Complete Story mode on the Nightmare difficulty.

Lucid Guardian

Complete Story mode on the Insanity difficulty.

Rhabdophobia

Complete one level in Story mode while only using the Dragon's Grasp.

Hoplophobia

Complete one level in Story mode while only using the Minigun.

Pagophobia

Complete one level in Story mode while only using the Hailstorm.

Astraphobia

Complete one level in Story mode while only using Shock Therapy.

Heliophobia

Complete one level in Story mode while only using the Sunbeam.

Ligyrophobia

Complete one level in Story mode while only using the Dream Cleaner.

Psychoanalysis

Kill 25 opponents in any Multiplayer game mode.

Prescription

Kill 100 opponents in any Multiplayer game mode.

Treatment

Kill 300 opponents in any Multiplayer game mode.

Instinctual Action

Enter Berserker Rage during a Multiplayer game.

Untouchable

Kill 10 opponents in a row without dying in a Multiplayer game.

Free Association

Kill 3 or more opponents at the same time in a Multiplayer game.

Xenophobia

Kill 10 or more enemies at the same time with any weapon.

Focused Mind

Defeat a Doorkeeper without taking any damage.

Dreamkiller

Defeat a Dreamkiller without taking any damage.

Suicidal Tendencies

Delusions of Grandeur

Finish a Deathmatch game with the highest score (with at least 3 other players involved).

Mind Guard

Return your team's flag at least 5 times in one CTF match.

Mastermind

Conquer 50 brains in Conquest mode.

Psycho Logical

Complete a Single Player game in Time Trial mode.

Simple Jack

Complete a Single Player game in Single Weapon mode.