Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Artistic Soul	Unlock a new background.	40
Boss Carnage	Defeat every boss at least once.	60
Challenge Up	Unlock one additional boss.	40
Exterminator III	Destroy a total of 1000 enemies.	80
Exterminator II	Destroy a total of 500 enemies.	60
Exterminator IV	Destroy a total of 2000 enemies.	200
Exterminator I	Destroy a total of 250 enemies.	20
Legendary Rider	Ride every hoverbike at least once.	80
Metal Detector III	Pick up a total of 500 gears.	60
Metal Detector II	Pick up a total of 250 gears.	60
Metal Detector IV	Pick up a total of 1000 gears.	200
Metal Detector I	Pick up a total of 100 gears.	20
Ninja Style	Destroy 5+ enemies with one katana slash.	40
Point Fever	Reach a score multiplier of 9.	80
Reckless Driver	Destroy 10 enemies by crashing into them.	40
Rising Star	Reach a highscore of 5000+ points.	40
Scavenger	Pick up 30 gears in one attempt.	40
Survival Expert	Reach wave #10.	200
Survival Master	Reach wave #5.	200
Survival Specialist	Reach wave #3.	40
Tuning Enthusiast	Purchase all upgrades in one category.	40
Tuning Expert	Purchase all upgrades.	200
Tuning Master	Fully upgrade both main weapons.	40
Tuning Rookie	Purchase any upgrade.	20
Unrivaled Warrior	Defeat any boss without taking damage.	80
Who's the Boss?	Defeat your first boss.	20