Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
Arachnicide	Kill the Spider Queen.
Back to the Abyss	Kill the Lurking Horror.
Bullseye	Get hit by your own arrow.
Dragonslayer	Kill the Dragon Lord.
Head collector	Chop fifteen heads enemies in one game.
Heads up	Headchop an enemy.
Loot!	Find the secret gate to the loot room.
Marksman	Kill a flying enemy with an arrow.
Might over magic	Kill the Sorcerer of Thorn.
Pile of bones	Kill the Lich King and Queen.
Ready for battle	Finish the tutorial.
Ring the Bell	Hit the lantern on the title screen.
Smithereens	Get killed by an explosive barrel.
Treasure	Get the key to a chest.
Unite the crystals	Gain all five crystals.
Victory!	Finish the game.