Achievement Walkthrough...

Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Level 3	You completed Level 3!	100
Level 6	You completed Level 6!	100
Level 9	You completed Level 9!	100
Level 12	You completed Level 12!	100
Level 15	You completed Level 15!	100
Level 18	You completed Level 18!	100
Level 21	You completed Level 21!	100
Level 24	You completed Level 24!	100
Level 27	You completed Level 27!	100
Level 30	You completed Level 30!	100