Achievement Walkthrough...

Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Complete level 10	Completed level 10.	100
Complete level 11	Completed level 11.	200
Complete level 15	Completed level 15.	100
Complete level 18	Completed level 18.	100
Complete level 20	Completed level 20.	100
Complete level 25	Completed level 25.	100
Complete level 2	Completed level 2.	100
Complete level 3	Completed level 3.	200
Complete level 4	Completed level 4.	100
Complete level 5	Completed level 5.	200
Complete level 6	Completed level 6.	100
Complete level 7	Completed level 7.	200
Complete level 8	Completed level 8.	100
Complete level 9	Completed level 9.	200
Start Space Kitten	Started Space Kitten.	100