Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Ammo Addict	Perform finishers.	60
Armored Anger	Complete the mission in 'Raining Blood'.	40
Babies First Steps!	Your story begins here.	40
Bang Gang	Complete the mission in 'Beat the Meat'.	40
Bookworm	Find and collect all floppies.	40
Boom Barrel	Complete the mission in 'Welcome Home'.	40
Bullseye	Complete the mission in 'Speed Demon'.	40
Combat Master III	Complete the third Master Arena.	40
Combat Master II	Complete the second Master Arena.	40
Combat Master IV	Complete the fourth Master Arena.	40
Combat Master I	Complete the first Master Arena.	40
Combat Master V	Complete the fifth Master Arena.	40
Demolisher	Complete the mission in 'Metro Mayhem'.	40
Dodgy Dancer	Complete the mission in 'A Small Step'.	40
Electric Wizard	Complete the mission in 'Tribal Trouble'.	40
Gnarly	Complete the mission in 'Man vs Machine'.	40
High On Health	Perform kicks.	60
In Your Face	Complete the mission in 'Clubbing Time'.	40
Piñata Time!	Perform your first finisher.	40
Plasma Power	Complete the mission in 'Logistical Nightmare'.	40
Rocket-Man	Complete the mission in 'Breaking In'.	40
Slide King	Complete the mission in 'Office Party'.	40
Superhero	Find and rescue all civilians.	40
Toy Collector	Find and collect all toys.	40