Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
1st Corporal (40 points)	Score 200000 points or more.
1st Private (20 points)	Score 100000 points or more.
1st Sergeant (60 points)	Score 300000 points or more.
2nd Lieutenant (80 points)	Score 400000 points or more.
All secrets (75 points)	Find all hidden secrets in the game.
Bad ending (75 points)	Destroy Hydorah.
Brigadier (70 points)	Score 350000 points or more.
Captain (100 points)	Score 500000 points or more.
Chest of Grialia (10 points)	Find the chest of Grialia.
Corporal (30 points)	Score 150000 points or more.
Escaping astronaut (10 points)	Find an escaping astronaut.
Good ending (100 points)	Destroy Hydorah and all his seeds.
Hero ending (140 points)	Destroy Hydorah and all his seeds using no continues.
Jumping flower (10 points)	Find a jumping flower.
Lieutenant (90 points)	Score 450000 points or more.
Moon stone (10 points)	Find a floating blue stone.
Private (10 points)	Score 50000 points or more.
Real pink elephant (10 points)	Find a pink elephant.
Sergeant (50 points)	Score 250000 points or more.
Shining giant egg (10 points)	Find a giant green egg.