Here is the full list of all 13 Mistake achievements.
Collect all crystals at four level
Collect all crystals at third level
Collect all crystals at first level
Find a cave
Find the Ferris wheel
Collect all crystals at second level
Go towards the music
Earn 800 points per level
Earn 600 points per level
Earn 400 points per level
Find a UFO
Earn 200 points per level
Find the cat statue