Full list of all 30 Dust: An Elysian Tail achievements worth 400 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Fulfill Bopo’s wish for snow
Bug Matti
Earn a Four-Star Rating in any Challenge Arena
Defeat General Gaius
Complete the Game on Tough or Hardcore setting
Destroy every enemy Cannon
Defeat Baron Kane
Kill an enemy with the slide attack
Successfully complete a 1000+ hit combo
Complete 10 Sidequests
Complete all Fale Quests
Craft an item from a blueprint
Defeat Lady Tethys
Complete 5 Sidequests
Reign chaos by putting poison ivy into Gianni's laundry
Opt out of putting poison ivy into Gianni's laundry
Meet Haley
Defeat Fuse
Simultaneously Kill 6 Enemies with a Single Bomb
Kill 500 Enemies
Successfully Parry with less than 10% health remaining
Successfully complete a 200+ hit combo
Unlock a Cage and Rescue a Friend
Unlock a Treasure Chest
Level Up by Assigning Skill Gems
Use the DUST STORM on Fidget's Projectiles
Pick Up an Ability Orb
Complete 20 Sidequests
Hang out with Twelve Friends in the Sanctuary
Earn a Four-Star Rating in EVERY Challenge Arena