Here is the full list of all 44 Shantae and the Pirate's Curse achievements worth 1,000 gamerscore.
Defeated the Ammo Baron without taking any damage.
Destroy 20 bones with the Bubble Shield.
Collect all Labyrinth maps.
Discover the secret Labyrinth.
Complete the hidden training room.
Complete the game without any Health upgrades and all Heart Squids collected.
Defeat the Pirate Master's true form.
Defeated the Pirate Master's true form without taking any damage.
Sample the entire menu!
Defeated the Pirate Master without taking damage.
Defeated the Pirate Master.
Collect all Dark Magic.
Collect all Heart Squids.
Defeated the Steel Maggot without taking damage.
Defeated the Steel Maggot.
Help Ammo Baron fire the Palace Disruptor Cannon.
Obtain the Spirit from Abner.
Collect the Enchanted Blade.
Defeated Dagron.
Obtain Manly Musk.
Collect 50% of the Heart Squids.
Obtain the Fossil.
Collect 50% of the Dark Magic.
Defeated the Squid Baron.
Defeat 50 enemies using Pirate Weapons.
Obtain the Golden Pickaxe.
Use a Pirate Flare to return to Risky's ship.
Obtain all three Mummy Sketches.
Defeated the Empress Spider.
Destroy 10 Spider Eggs before they hatch.
Obtain Squid Oil.
Defeated the Cyclops Plant.
Defeat 250 enemies using Shantae's Monster Whipper!
Release the Ham Stink.
Defeated the Ammo Baron.
Play keep away with the Ammo Baron.
Defeated the Cyclops Plant without taking damage.
Defeated the Empress Spider without taking damage.
Defeated the Squid Baron without taking damage.
Defeated Dagron without taking damage.
Saved Scuttle Town as fast as possible!
Achieve 100% completion in record time!
Get Rottytops to Abner Tree without making any mistakes in a single attempt.
Defeated the Cyclops Plant using only Pike Balls.