Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Collect 100 stars!	You've collected 100 stars!	100
Collect 120 stars!	You've collected 120 stars!	100
Collect 140 stars!	You've collected 140 stars!	100
Collect 160 stars!	You've collected 160 stars!	100
Collect three special stars in one level!	You've collected three special stars in one level!	50
Collect all (168) stars!	You've collected all (168) stars!	100
Complete island 1!	You've completed island 1!	100
Complete island 2!	You've completed island 2!	100
Complete island 3!	You've completed island 3!	100
Complete the game!	You've completed the game!	150