Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
Act 1 Complete (150)	Complete Act 1.
Act 2 Complete (200)	Complete Act 2.
All Extras Found (50)	Hidden Objects.
All Limericks Found (50)	Ask around for all the rhymes!
All the Balls (50)	Ball Talk.
Eye Poke (50)	How does a werewolf forget?
Game Complete (200)	Complete the Game.
Is it something I said? (50)	Zombie Talk?
Prison Break (50)	Get out of here!
Thirsty! (50)	Order up!
True Detective (50)	Zombie Interrogation!
Zombie Chat (50)	Talking Zombie.