Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Escaped	Complete the Prison.	100
Fallen Tripod	Defeat the Tripod.	100
Nathan's Kingdom	Complete Nathan's Kingdom.	50
People used to live here?	Complete the Apartments.	100
Plane Wreckage	Complete Plane Wreckage.	50
Red Weed Everywhere	Complete Castleton.	100
So it begins...	Complete the Tutorial.	20
The Beautiful Game	Complete the Stadium.	100
Tooled Up	Unlock All Throwables.	50
Trollin'	Complete the Game.	1
Vitality	Fully upgrade Jack.	50
Zapped	Take out 3 enemies at the same time using throwables.	150