Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
All in a Day's Work	Finish every Match in the Out For Blood Campaign.	50
Champion	Complete the main Campaign.	50
Completionist	Complete 100% of the Challenges in the main Campaign.	100
Debut	Finish your first Match.	20
Every Trick in the Book	Perform every Grab Trick in a single Match.	75
Finalist	Reach the Final.	40
Glutton for Punishment	Complete 100% of the Challenges in the Out For Blood Campaign.	200
Half Way	Complete 50% of the Challenges in the main Campaign.	50
Killstreak	Finish a Match in a single Combo.	30
Never Outgunned	Beat the Spider Tank Mk. I without taking any damage.	50
One for the Record Books	Perform a single Combo worth more than 3,000,000.	40
Quarter Finalist	Reach the Quarters.	30
Ready for Anything	Complete every Tutorial exercise.	25
Semi Finalist	Reach the Semis.	35
Slugger	Finish a level using only Slug Shots.	30
Strike A Pose	Perform every Grind in a single Match.	50
Three's a Crowd	Eliminate three House Players with a single Grenade.	20
Two Birds	Eliminate two House Players with a single Z-11 shot.	30
Untouchable	Finish a Match without taking any damage.	30
Warming Up	Play through and finish the Entry Tests.	15
Welcome to Rollerdrome	Finish a Match in the Out For Blood Campaign.	30