Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
A hidden enemy (80 points)	Destroy the boss of the first area.
A messy enemy (80 points)	Destroy the boss of the second area.
Boosted (80 points)	Get a power up.
Don't give up (80 points)	Get 1000 score.
Excellent (80 points)	Complete 5 levels.
Going forward (80 points)	Complete 3 levels.
Good job (80 points)	Get 2000 score.
Impressive (200 points)	Complete 7 levels.
That will teach them (80 points)	Get 10000 score.
Welcome (80 points)	Die for the first time.
Well done (80 points)	Get 5000 score.