Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Across the border	Finish 30 levels.	100
Across the finish line	Finish all levels.	200
Across the land	Finish one level.	50
Across the last mile	Finish 35 levels.	100
Across the point of no return	Finish 20 levels.	50
Across the sea	Finish 25 levels.	150
Across the sky	Finish 10 levels.	100
Across to bear	Finish 15 levels.	50
Ancient Internal	Finish a level in the Ancient Internals level pack.	100
Old Internal	Finish a level in the Old Internals level pack.	100