Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Algorithms (125 points)	Beat the singleplayer in under 20 minutes.
Bloodlust (100 points)	100 total kills in one match.
Comeback Kid (50 points)	Get eaten by the nidhogg after nearly allowing your opponent to do the same.
Domination (50 points)	Win the faceoff and never lose the arrow in a singleplayer match.
Donkeyspace (50 points)	Play a match lasting longer than 20 minutes.
Flesh and Blood (100 points)	Beat the singleplayer game.
GTD (50 points)	Finish an 8 player tournament.
Hogglike (125 points)	Dominate every level in one singleplayer game.
Memories (25 points)	Trap your opponent on your sword for a long time while moving it up and down.
Old School (25 points)	Play a match with old school settings.
Self Sacrifice (50 points)	Kill yourself with your own arrow.
Slow Played (50 points)	Let the timer run out in your opponent's last screen and win in sudden death.
Valkyrie (200 points)	Win 100 online games through matchmaking.