Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Alien Encounter	Complete the Alien Encounter.	70
Bay Area	Complete the Bay Area level.	70
Car Chase	Complete the Car Chase bonus level.	70
Chinatown	Complete the Chinatown level.	70
Dangerous Duo	Defeat the third Boss.	90
First Weapon	Unlock your first weapon.	70
Master Donut	Defeat the final Boss.	90
Ninja	Defeat the second Boss.	90
Old Town	Complete the Old Town level.	70
Slime	Defeat the four Boss.	90
Subway	Complete the Subway level.	70
UZI Guy	Defeat the first Boss.	80
Well-dressed	Buy your first hat.	70