Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Begin	Begin.	50
Cockroaches	Cockroaches.	50
Halfway	Halfway.	150
Red Room	Red Room.	100
The Clock	The Clock.	50
The End	The End.	200
The bloody bathroom	The bloody bathroom.	100
The bloody corridor	The bloody corridor.	100
The green corridor	The green corridor.	100
The puppet	The puppet.	100