Successfully complete the game under the Normal difficulty setting.
Hydra Shotgun
Successfully complete the game under the Normal or higher difficulty setting.
Infinite Rocket Launcher
Successfully complete the game under the Hell difficulty setting.
New Game+
Successfully complete the game.
Raid mode characters
Complete the indicated task to unlock the corresponding character.
Morgan: Find the real exit on stage 21.
Norman: Collect all rare weapons.
O'Brian: Complete all stages under the Abyss difficulty.
Raymond: Complete all stages under the difficulty.
Raid Mode Characters and Outfits
Accomplish certain missions to unlock new characters, as well as outfits.
Unlockable
How to unlock
Chris, outfit 1 (Snow)
Clear episode 1-3 in the main game.
Chris, outfit 2 (Ship)
Reach player level 30.
Jessica, outfit 1 (Snow)
Reach player level 10.
Jessica, outfit 2 (Ship)
Clear every stage on Trench difficulty.
Jessica, outfit 3 (Terragrigia)
Reach player level 40.
Jill, outfit 1 (Ship)
Clear episode 1-3 in the main game.
Jill, outfit 2 (Beach)
Reach player level 5.
Keith, outfit 1 (Snow)
Clear episode 4-6 in the main game.
Keith, outfit 2 (HQ)
Clear 50 missions.
Morgan
Find the real exit on stage 21.
Norman
Obtain all rare weapons.
O'Brian
Clear every stage on Abyss difficulty.
Parker, outfit 1 (Ship)
Clear episode 1-3 in the main game.
Parker, outfit 2 (Beach)
Reach player level 20.
Parker, outfit 3 (Terragrigia)
Obtain one rare weapon.
Quint, outfit 1 (Snow)
Clear 100 missions.
Quint, outfit 2 (HQ)
Reach player level 50.
Raymond
Clear every stage on Chasm difficulty.
Raid Mode Colours
Complete every stage on one difficulty of Raid Mode with an S rank to change the colour of your name. The 21st stage is not required.
Unlockable
How to unlock
Blue name
S rank on every level of Trench difficulty.
Green name
S rank on every level of Chasm difficulty.
Pink name
S rank on every level of Abyss difficulty.
Raid mode costumes
Complete the indicated task to unlock the corresponding costume.
Chris (Snow): Complete Episodes 1 to 3 in the main game.
Chris (Ship): Reach player level 30.
Jessica (Snow): Reach player level 10.
Jessica (Ship): Complete all stages under the Trench difficulty.
Jessica (Terragrigia): Reach player level 40.
Jill (Ship): Complete Episodes 1 to 3 in the main game.
Jill (Beach): Complete the first Raid stage.
Keith (Snow): Complete Episodes 4 to 6 in the main game.
Keith (HQ): Complete 50 missions.
Parker (Ship): Complete Episodes 1 to 3 in the main game.
Parker (Beach): Reach player level 20.
Parker (Terragrigia): Collect one rare weapon.
Quint (Snow): Complete 100 missions.
Quint (HQ): Reach player level 50.
Raid mode difficulties
Trench difficulty: Complete all Raid mode stages under the Chasm difficulty.
Abyss difficulty: Complete all Raid mode stages under the Trench difficulty.
Raid mode Herb
Successfully complete a Raid mode stage and the BSAA emblem will appear. Execute a fully charged melee attack on it get a Herb.
Raid mode name colors
Complete all levels with an "S" rank under the indicated difficulty setting to change your name to the indicated color. Note: Completing stage 21 is not required.
Complete the indicated task in Campaign mode to unlock the corresponding stages in Raid mode.
Stages 1 to 7: Complete Episodes 1 to 3.
Stages 8 to 12: Complete Episodes 4 to 6.
Stages 13 to 17: Complete Episodes 7 to 9.
Stages 18 to 20: Complete episodes 10 to 12.
Bonus Stage 21: Complete the game.
Weapons
Weapon
How to unlock
Infinite Rocket launcher
Beat the game on hell mode to unlock the rocket launcher with unlimited ammunition.
Hydra-shotgun
Beat the game on normal to unlock the hydra shotgun.
Handgun PC356.
Kill 150 enemies.
Custom Part Bind 1.
Dodge 20 times.
Custom Part: Auto Loader.
Defeat Casual Difficulty without using Herbs or the Infinite Rocket Launcher.
Custom Part: Charge Shot 3.
Beat Casual Difficulty.
Custom Part: Edge Runner 2.
Scan every enemy.
Custom Part: Long Magazine 2.
Successfully use 10 physical attacks that are fully charged.