Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Alpha Team's Finest	Finish the game using Jill.	30
An End to a Poor Girl's Misery (secret)	Defeat Lisa Trevor using Chris.	20
Bravo, Rebecca (secret)	Save Chris using Rebecca.	10
Break Out the Marshmallows! (secret)	Burn up two zombies at the same time with the lighter.	30
CQC FTW	Finish the game using only your knife (no lighter, Defensive Items, and stomping zombie heads).	30
Deep Sixed (secret)	Defeat mother Neptune.	10
Delaying the Inevitable (secret)	Save Richard with a serum.	10
Don't Stop Running	Finish the game in three hours.	50
Every Man for Himself (secret)	Finish the game without saving anyone using Chris.	30
Every Nook and Cranny	Visit all places on all maps.	20
Every Woman for Herself (secret)	Finish the game without saving anyone using Jill.	30
First Kills Are Special	Defeat a zombie.	10
Get Used To It	Die for the first time.	10
Ghost of a Chance (secret)	Finish the game in Invisible Enemy mode.	100
Giant Snake Got Nothin' (secret)	Defeat Yawn using Jill.	20
Grave Digger (secret)	Defeat a Crimson Head prototype1 using Jill.	20
Herbicide (secret)	Defeat Plant 42 using Chris.	20
I'm a Member of S.T.A.R.S. (secret)	Finish the game saving Chris and Barry using Jill.	30
Ink is for Squids	Finish the game without saving.	50
Like Taking Candy from a Baby	Finish the game on Very Easy difficulty or higher.	10
Not in the Mood to Die	Finish the game on Easy difficulty or higher.	10
Not Just Any Object (secret)	Obtain the Stone & Metal Object using Chris.	20
Not Taking Any Chances	Burn up a zombie.	10
Not Waiting to Exhale (secret)	Survive your first encounter with Yawn.	10
Oh, the Horror (secret)	Finish the game on Hard difficulty.	30
Passion for Fashion	Obtain all costumes.	20
Racing and Pacing	Finish the game in five hours.	50
Seeing Red (secret)	Defeat a Crimson Head.	10
Sorry About the Wait (secret)	Save Chris from confinement using Jill.	10
Sorry I Made You Wait (secret)	Save Jill from confinement using Chris.	10
Spider Sense (secret)	Defeat Black Tiger.	10
Starsenal	Obtain all weapons (must load grenade launcher with all shell types).	30
Take that, Zombies!	Finish the game on Normal difficulty or higher.	20
That Was Nice of You (secret)	Save Rebecca from a Hunter.	10
The Key Master (secret)	Obtain the Helmet Key using Jill.	20
The Nightmare Ends (secret)	Finish the game saving Rebecca and Jill using Chris.	30
The Survival Horror (secret)	Finish the game in Real Survival mode.	30
Trust Him (secret)	Save Barry from Lisa Trevor.	10
We're in This Together	Finish the game with Jill and Chris.	30
What a Great Guy (secret)	Save Jill using Barry.	10
Where the Magic Happens (secret)	Break into the laboratory using Jill.	20
Who's the Hunter Now? (secret)	Defeat a Hunter.	10
Written Word is Dead (secret)	Obtain the "Last Book Vol. 2" using Chris.	20
You da Man, Chris	Finish the game using Chris.	30