Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Area 51 Pilot	Find the alien test subject.	50
Black Pearl	Find the sunken pirate ship's loot, acquire the black pearl in treasure chest.	100
Calamari	Defeating the Kraken.	50
Collect All Datalogs	You've collected all the datalogs.	25
Collect all Security logs	You've collected all the security logs.	25
Eel-ectric Slide	Death by eel.	25
Game completed x2	Completed game with rob and maria both.	50
Independence Day	Find the crashed alien ship.	100
Maria on the beach	Complete game with Maria.	100
Master of the Ocean	Acquire all achievements.	100
Reunited	After being separated, I brought the two fish together and they swam off as if looking for something.	25
Rob on the beach	Complete game with Rob.	100
Shark Week	Death by shark.	50
Sharkbait... hoo ha ha	Death by the Megalodon.	50
Sharpshooter	You've killed your first shark.	50
Sniper	Hitting the panel in one shot on chapter 4.	50
Super Swimmer	Complete the game in under two hours.	25
Use Oxygen Station	You now can breathe.	25