Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Level 4	Complete level 4.	50
Level 8	Complete level 8.	50
Level 12	Complete level 12.	50
Level 16	Complete level 16.	50
Level 20	Complete level 20.	100
Level 24	Complete level 24.	100
Level 28	Complete level 28.	100
Level 32	Complete level 32.	100
Level 36	Complete level 36.	100
Level 40	Complete level 40.	100
Level 44	Complete level 44.	100
Level 48	Complete level 48.	100
Level 52	Complete level 52.	200
Level 54	Complete level 54.	200
Level 56	Complete level 56.	200
Level 58	Complete level 58.	200
Level 60	Complete level 60.	200