Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Almost Equal (20 points)	End 3 successive rounds in a draw in VS mode.
Avengers (30 points)	Complete story mode in co-op.
Die Hard (40 points)	Clear a stage with no health points left.
Explosion of Rage (20 points)	Find Marian's necklace in the Heliport.
Helpless Observer (20 points)	Witness Marian's death in story mode.
Invincible (60 points)	Complete final stage on the Hard difficulty setting.
Just Like Bruce Lee (40 points)	Successfully execute 5 power attacks in a row.
Just Like Old Times (20 points)	Find the Tree of Memories in the Field of Death.
Legendary Master (40 points)	Clear any stage with a hit ratio 100:1(land 100 attacks for every hit you take) or higher.
Rest in Peace-Mercy (60 points)	Complete the game on story mode without using any special attacks.
Revenge-No Mercy (30 points)	Complete the game on story mode.
Survivor (20 points)	Defeat 150 enemies in survival mode.