Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
25%	Finish 10 levels.	100
50%	Finish 20 levels.	200
75%	Finish 30 levels.	200
Big Bad Wolf	Defeat 10 wolves.	200
Do a Barrel Roll!	Stun 10 foxes.	100
Fisherman	Stun 10 catfishs.	100
Herbicide	Defeated 10 plants.	200
Knight of the day	Save all nestlings from a day island.	100
Muad'Dib	Stun 10 worms.	100
Only the land	No sea tiles in the level.	100
Only the sea	No land tiles.	100
Pop! Pop! Pop!	Popped 10 acid bubbles.	200
The Barn or There and Back Again	You have transformed barns 10 times.	100
The lost hope	You have escorted a lost nestling to the Barn.	100
The safe night	You have saved all nestlings from a night island.	100