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