Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
1 + 1 = 3	Complete co-op run.	40
All the Treasures of the Sea	Buy all upgrades.	80
Betty Joins the Crew	Unlock Betty.	20
Cluck Joins the Crew	Unlock Cluck.	20
Curse lifter	Lift a curse.	20
Eye of the Storm	Defeat Eye.	80
Finley Joins the Crew	Unlock Finley.	20
Gill Joins the Crew	Unlock Gill.	20
Gold Plating	Max out a cannon.	40
Harbinger of Hoarfrost	Defeat Heads.	80
It's the Aquapocalypse	Complete the Tutorial.	20
Krillstoph Joins the Crew	Unlock Krillstoph.	20
Lotte Joins the Crew	Unlock Lotte.	20
Master-At-Arms	Destroy 10000 sea monsters.	80
Old Sea Dog	Complete solo run.	40
Powder Fool	Destroy hundred sea monsters.	20
Quill Joins the Crew	Unlock Quill.	40
Reflector	Reflect two projectiles at once.	20
Shadow of the Undergrowth	Defeat Tentacles.	80
Shelbie Joins the Crew	Unlock Shelbie.	20
Ship Gunner	Destroy thousand sea monsters.	40
Tendrils...	Buy your first upgrade.	20
The Perfect Crew	Complete a run without taking damage.	80
Tyrant of the Deep	Defeat Claws.	80