Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Chinatown Rundown (15 points): Complete Chapter 1 on any difficulty setting (Story Mode).
Vehicular Carnage (15 points): Complete Chapter 2 on any difficulty setting (Story Mode).
Boneyard Workout (15 points): Complete Chapter 3 on any difficulty setting (Story Mode).
You Dirty Rat (15 points): Complete Chapter 4 on any difficulty setting (Story Mode).
Everybody Runs (15 points): Complete Chapter 5 on any difficulty setting (Story Mode).
Falling for Kafka (15 points): Complete Chapter 6 on any difficulty setting (Story Mode).
Uninvited Guest (15 points): Complete Chapter 7 on any difficulty setting (Story Mode).
Breaking the Ice (15 points): Complete Chapter 8 on any difficulty setting (Story Mode).
The Opera House (15 points): Complete Chapter 9 on any difficulty setting (Story Mode).
Shock Therapy (15 points): Complete Chapter 10 on any difficulty setting (Story Mode).
Road Rage (15 points): Complete Chapter 11 on any difficulty setting (Story Mode).
Head to Head (15 points): Complete Chapter 12 on any difficulty setting (Story Mode).
No Sweat! (30 points): Finish Story Mode on Cake Walk (Easy) difficulty.
Business as Usual (40 points): Finish Story Mode on Hired Gun (Normal) difficulty.
Hard Time (50 points): Finish Story Mode on Fixer (Hard) difficulty.
Blood, Sweat and Tears (60 points): Finish Story Mode on Femme Fatale (Ultra Hard) difficulty.
Quick Kills (30 points): Finish Story Mode on Golden Bullets difficulty.
Monkey Curious! (10 points): Collect 1 Monkey Toy.
Monkey Addict! (15 points): Collect every Monkey Toy in a single Chapter.
Monkey Obsessed! (25 points): Collect every Monkey Toy in the game.
Keep Your Balance (30 points): Get a balance of 50,000 Style Points (Story Mode).
Scorpio (20 points): Kill every Scorpion in Rubi's Boneyard.
Impulse Buyer! (15 points): Purchase any 3 upgrades.
Fully Capable! (25 points): Purchase all Rubi Ability Upgrades.
Fully Loaded! (25 points): Purchase all Rubi Weapon Upgrades.
Hey Big Spender! (30 points): Purchase all Upgrades.
Bonafied! (20 points): Earn a Bronze Medal in every Challenge (Boneyard Challenges).
Bone-Head (30 points): Earn a Silver Medal in every Challenge (Boneyard Challenges).
Total Bone-Head (40 points): Earn a Gold Medal in every Challenge (Boneyard Challenges).
Target Score Sampler! (10 points): Beat the target score in any Chapter (Points Count Mode).
Target Score Needy! (20 points): Beat the target score in any 3 Chapters (Points Count Mode).
Target Score Junky! (30 points): Beat the target score in every Chapter (Points Count Mode).
Revolver Onslaught! (25 points): Kill a total of 200 Enemies using Rubi's Pistols during acrobatic slow-mo.
Shotgun Wallop! (25 points): Kill a total of 200 Enemies using Rubi's Shotguns during acrobatic slow-mo.
Full-Auto Frenzy! (25 points): Kill a total of 200 Enemies using Rubi's Sub-Machineguns during acrobatic slow-mo.
Crossbow Blitz! (25 points): Kill a total of 200 Enemies using Rubi's Dart Bows during acrobatic slow-mo.
Cutting Edge Combat (25 points): Kill 200 Enemies with acrobatic Sword attacks.
Guns don't kill people... (15 points): Kill 30 Enemies with environmental objects or explodables.
Group Therapy (15 points): Kill 3 Enemies at the same time.
Turret-Syndrome (20 points): Kill a total of 100 Enemies while using stationary gun.
Skull Crushing Accuracy (30 points): Kill 100 Enemies with headshots.
Maximum Efficiency (30 points): Kill a total of 100 Enemies at maximum multiplier (x5).
Graphic Violence (30 points): Reach a chain kill count of 60 while in Rage Mode.