Here is the full list of all 40 Shantae and the Seven Sirens achievements.
Complete the adventure with 100% completion as quickly as possible!
Complete the adventure as quickly as possible!
Complete the game without any Health upgrades and all Heart Squids collected.
Complete the game in Rule Breaker or Full Deck Mode.
Collect all Monster Cards.
Avoid startling the Lobster Girl throughout the adventure.
Complete the adventure with 100% completion!
Unearthed all secrets.
Open all Shock Machines.
Upgrade all magic to max.
Revitalize cellular functions.
Turn an enemy to an ally by helping them heal.
Witness every magical outcome with Slimes.
Win the highest total in a Hula Contest.
Complete the adventure!
Complete the game in Beginner or Definitive Mode.
Defeated the Empress Siren.
Deactivate all the Towers.
Defeated the fifth Siren.
Shock a circus squid.
Obtain all magical forms.
Complete a Ghostly Quest.
Unearth a buried treasure.
Learn all magical dances.
Defeated the fourth Siren.
Locate the sunken ship remains.
Uncovered a possible threat.
Fell for a double cross.
Open a Shock Machine.
Ascend to Armor Town.
Defeated the third Siren.
Enter the Sea Lab.
Obtain the Lucky Amulet.
Defeated the second Siren.
Use the valve.
Reach Tree Town.
Defeated the first Siren.
Have three Monster Cards equipped at once.
Took the tour!
Obtain a Monster Card.