Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Boss I ( 15 points )	Defeat the first level boss.
Boss III ( 15 points )	Defeat the third level boss.
Complete The Game ( 25 points )	Finish the game.
Giant Man ( 10 points )	Collect a Spirit Ball.
Multiple Beasts ( 10 points )	Play in an online multiplayer game.
Points I ( 10 points )	Score 150,000 points.
Points II ( 15 points )	Score 250,000 points.
Points III ( 25 points )	Score 350,000 points.
Renaissance Man ( 25 points )	Start the game once with each of the four difficulty settings.
Three in a Row ( 10 points )	Collect Spirit Balls from the first three White Wolves in any level - Single Player mode only.
Untouchable ( 25 points )	Reach the third level without losing a life.
Wolf Hunter ( 15 points )	Kill 30 two-headed wolves.