Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
PART III	Begin Part III.	60
PART II	Begin Part II.	60
PART IV	Begin Part IV.	60
PART IX	Begin Part IX.	60
PART I	Begin Part I.	60
PART VIII	Begin Part VIII.	60
PART VII	Begin Part VII.	60
PART VI	Begin Part VI.	60
PART V	Begin Part V.	60
PART XIII	Begin Part XIII.	60
PART XII	Begin Part XII.	60
PART XIV	Begin Part XIV.	60
PART XI	Begin Part XI.	60
PART XV	Begin Part XV.	60
PART X	Begin Part X.	60
The End	Finish the game.	100