There are 19 achievements worth a total of 1000 points
Complete a level in co-op.
Gather all Coins on one level.
Gather every Coin in the game.
Unlock a new skill.
Unlock all skills.
Find a secret teleport.
Find all secret teleports.
Complete any level without losing a heart.
Complete any level without collecting an amber.
Hit 3 enemies with one dash.
Make 4 enemies dance at once.
Defeat Frobos and collect his key part.
Defeat Robos and collect his key part.
Defeat Octobos and collect his key part.
Defeat Cobos and collect his key part.
Defeat Calypso.
Complete one unlockable level.
Complete all unlockable levels.
Collect more than 100% of ambers in any level.