Here is the full list of all 15 Swords & Bones 4 achievements.
It bounces on a star sphere.
Collect 2357 Crystals.
Destroy a block.
Defeat a Skeleton.
Touch a Fish-Man Stone.
Activates a lever and unlocks a secret way.
Buy a Special Robe.
Buy a Key.
Beat level 1.
Beat level 2.
Beat level 3.
Beat level 4.
Beat level 5.
Collect all 36 Heroes' Trophies.
Complete all levels.