Here is the full list of all 31 Rhythm Sprout: Sick Beats & Bad Sweets achievements.
Got all achievements in Rhythm Sprout!
Get 25 CDs.
Get to the finish line with every unlockable skin.
Get 10 CDs.
Answered NO on every question at least once.
Your love of trap doors knows no bounds.
Clear 10 Levels in Turbo Mode.
Answered YES on every question at least once.
Be very interested in Sugar Daddy's story.
Rewatched a cutscene multiple times.
Clear All Bonus Levels.
Get 100 Stars.
Finish the Side Story.
Defeat Mrs. Chili.
Defeat The Power Peppers.
Finish the Main Story.
Defeat K-FLOW.
Hit 20 Trap Notes in one level.
"Defeat" King Sugar Daddy.
Get one of the Target Scores in any level (no more, no less).
Get 50 Stars.
Defeat Candy Mama.
Clear 5 Levels in Mirror Mode.
Clear 5 Levels in Random Mode.
Die several times in a row.
Listen to the same loop over and over again.
Wear an unlockable skin for multiple levels.
Defeat Count Arelle.
Fall through Count Arelle's trap door.
Get your first CD.
Cleared the first level.