Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
4-Minute Abs (50 points)	Complete any world in 4 minutes or less.
By the Power of Gray-Skill... (50 points)	Wield the fire sword.
Don't Nidhoggr All the Ale (50 points)	Reach Yggdrasil's roots.
I Will Have My Vengeance! (50 points)	Defeat the Lizardmen King.
If It Bleeds, You Can Kill It (50 points)	Complete the game and earn Ending C.
Let Off Some Steam, Bennett (50 points)	Kill 4 enemies with a single charged spear attack.
Nothing Can Stop Me (50 points)	Block a projectile with the shield while in the air.
On the Highway to Hel (50 points)	Hitch a ride on a spear attached to an enemy shield.
On the Wings of Glory (50 points)	Complete the game and earn Ending B.
Red Means Dead (50 points)	Complete the game and earn Ending A.
Shield Gots My Back (50 points)	Block an attack with the shield while on a rope/chain.
Sock It to Me Nakatomi (50 points)	Break the Magic Seal on Fafnir's Tower.
That Was...Unexpected (50 points)	Kill Fafnir before he reaches his Dragon form.
Thor's Blessing (50 points)	Unlock Mjolnir's power.
Viking Legend (50 points)	Complete the game with 10 or less retries.
Viking Nipples of Steel (50 points)	Complete any world without ever losing any equipment.
Volgarr...You're Sooo Smooth (50 points)	Find a Key Stone.
Wealthier than the King of Sweden (50 points)	Collect a golden walrus statue.
What the Hel is "Nar-Nee-Yah" (50 points)	Reach the alternate path for any world.
You've Got the Touch, You've Got the Powah! (50 points)	Obtain a Warrior Spirit.