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