Complete each achievement to get the allotted gamerscore.

Unlockables

A Cut Above (15) Defeat 5 enemies with the Knife.
A Friend in Need (15) Save partner 10 times when HELP is displayed.
All Dressed Up (30) Purchase all available alternative costumes in Bonus Features.
Bad Blood (15) Inflict a set amount of damage to your greatest enemy.
Badge of Honor (30) Find all the BSAA emblems.
Baptism by Fire (15) Defeat 3 Majini at once with a drum or gas tank explosion.
Be the Knife (60) Deflect a bow gun arrow with your knife.
Bull's-eye (15) Defeat 30 enemies with the Longbow.
Cattle Prod (15) Defeat 30 enemies with the Stun rod.
Completed Chapter 1 - 1 (15) Complete Chapter 1 - 1 on any difficulty setting.
Completed Chapter 1 - 2 (15) Complete Chapter 1 - 2 on any difficulty setting.
Completed Chapter 2 - 1 (15) Complete Chapter 2 - 1 on any difficulty setting.
Completed Chapter 2 - 2 (15) Complete Chapter 2 - 2 on any difficulty setting.
Completed Chapter 2 - 3 (15) Complete Chapter 2 - 3 on any difficulty setting.
Completed Chapter 3 - 1 (15) Complete Chapter 3 - 1 on any difficulty setting.
Completed Chapter 3 - 2 (15) Complete Chapter 3 - 2 on any difficulty setting.
Completed Chapter 3 - 3 (15) Complete Chapter 3 - 3 on any difficulty setting.
Completed Chapter 4 - 1 (15) Complete Chapter 4 - 1 on any difficulty setting.
Completed Chapter 4 - 2 (15) Complete Chapter 4 - 2 on any difficulty setting.
Completed Chapter 5 - 1 (15) Complete Chapter 5 - 1 on any difficulty setting.
Completed Chapter 5 - 2 (15) Complete Chapter 5 - 2 on any difficulty setting.
Completed Chapter 5 - 3 (15) Complete Chapter 5 - 3 on any difficulty setting.
Completed Chapter 6 - 1 (15) Complete Chapter 6 - 1 on any difficulty setting.
Completed Chapter 6 - 2 (15) Complete Chapter 6 - 2 on any difficulty setting.
Completed Chapter 6 - 3 (15) Complete Chapter 6 - 3 on any difficulty setting.
Crowd Control (15) Defeat 30 enemies with the Gatling gun.
Drive By (30) Stop an armored truck by taking out the driver.
Egg Hunt (15) Find all 4 types of eggs.
Egg on Your Face (15) Defeat a Majini with a rotten egg.
Exploding Heads (15) Pull off 20 headshots.
Fireworks (15) Shoot an enemy Molotov cocktail, dynamite stick, or hand grenade.
Get Physical (15) Defeat 20 enemies with physical attacks.
Go into the Light (15) Defeat 2 enemies with one flash grenade.
Heart Stopper (15) Defeat a certain enemy by stabbing it in the heart.
Lead Aspirin (30) Defeat a Majini with a headshot while it's jumping.
Lifeguard (15) Save partner 10 times when DYING is displayed.
Masters of Removing (15) Work together to save someone special.
Meat Shower (15) Defeat 3 Majini with one grenade or proximity bomb.
Recruit (15) Complete all chapters on Amateur.
Ride the Lightning (15) Defeat a Majini using the electric current from a transformer.
Soldier (15) Complete all chapters on Normal.
Stockpile (30) Obtain all available weapons.
Stop, Drop, & Roll (15) Defeat 3 Majini at once by setting oil canisters on fire.
Take It to the Max (30) Completely upgrade all weapons.
The Works (15) Chain the maximum number of combos together in one go.
They Belong in a Museum (30) Obtain all treasures in the game.
They're ACTION Figures! (30) Collect all the figurines.
Veteran (30) Complete all chapters on Veteran.
War Hero (70) Complete all chapters on the most difficult setting.
Who Do You Trust? (30) Build up a certain level of trust with your partner.

How to unlock all "Graphic Filters" - By finishing the game you unlock different graphic filters to use during gameplay. Once unlocked, go to Bonus Features and buy them for 0 pts. each.

Unlockables

Classic Horror (Black & White) Beat the game on Amateur difficulty
Noise (Grain effect) Beat the game on Veteran difficulty
Retro (Sephia) Beat the game on Normal difficulty

Unlock Infinity Rocket Launcher - To unlock the Rocket Launcher with infinite ammo, beat the game under 5 hours on any difficulty, and turn infinite ammo on under bonus features.

Unlockable Costumes

Chris (S.T.A.R.S.) Complete Chapters 1 - 6 and find 25 BSAA Emblems
Chris (Safari) Complete Chapters 1 - 6
Sheva (Clubbin') Complete Chapters 1 - 6
Sheva (Tribal) Complete Chapters 1 - 6 and find 30 BSAA Emblems

Unlockable Mercenary Characters

Chris (Safari) Get an A Rank or higher in The Village
Chris (Stars) Get an A Rank or higher in Experimental Facility
Jill (Battle Suit) Get an A Rank or higher in Ship Deck
Jill (BSAA) Get an A Rank or higher in Public Assembly
Sheva (Clubin) Get an A Rank or higher in Ancient Ruins
Sheva (Tribal) Get an A Rank or higher in Missile Area
Wesker (Midnight) Get an A Rank or higher in The Mines
Wesker (STARS) Get an A Rank or higher in The Prison

Unlockables

History of Resident Evil Beat the game on any difficulty
Mercenaries Mode Finish the game in any difficulty.
New Game+ Finish the game in any difficulty.
Playing with Sheva Finish the game in any difficulty.
Professional Difficulty Beat every chapter on Veteran
Unlimited ammuntion for a weapon Finish the game then max out the upgrades for that gun.

Versus DLC Achievements

Unlockables

Army of One (15) Win 30 matches in Slayers.
Bringing the Pain (30) Defeat 100 players using physical attacks in Versus.
Eye of the Tiger (15) Win 30 matches in Survivors.
It Takes Two to Tango (15) Chain a 40-defeated combo in Team Slayers.
It's All About the Points (15) Score at least 40,000 points in Survivors.
Keep the Good Times Rolling (15) Chain a 20-defeated combo in Slayers.
Let's Get This Party Started! (20) Unlock all selectable characters in Versus.
The Team That Slays Together... (30) Win 30 matches in Team Slayers.
There's no "I" in Team (15) Score at least 80,000 points in Team Survivors.
We Will Survive (30) Win 30 matches in Team Survivors.

Versus DLC Characters - Once you download the Versus DLC, you may buy the following characters from the Bonus Features menu using your accumulated Exchange Points

Unlockables

Chris (S.T.A.R.S.) 13,000 Exchange Points
Chris (Safari) 8,000 Exchange Points
Jill (Battlesuit) 7,000 Exchange Points
Jill (BSAA) 5,000 Exchange Points
Sheva (Clubbin') 6,000 Exchange Points
Sheva (Tribal) 15,000 Exchange Points
Wesker (Midnight) 30,000 Exchange Points
Wesker (S.T.A.R.S.) 50,000 Exchange Points

Weapon Unlocks - Fully upgrading the first weapon of each type unlocks the ultimate weapon of each category.

Unlockables

Gatling Gun (Chris Only) Fully upgrade the VZ61 Machine Gun
Hydra Triple Barrel Shotgun Fully upgrade the Ithaca M37 Shotgun
Longbow (Sheva Only) Fully upgrade the S75 Rifle
M93R Pistol (Samurai Edge Custom) Fully upgrade the M92F Pistol
S&W M500 (Handcannon) Fully upgrade the S&W M29 Magnum