It's a great blend of electroswing and other wonderful music with an interesting combination of puzzle and action gameplay. The art style with its bright colors is also easy on the eyes, but the music certainly is the game's strongest point. I terribly suck at music games, but here I kept bobbing my head to the rhythm here out of sheer enjoyment of the tunes. This, of course, helps a lot in playing as you benefit from doing certain actions within a rhythm.
But anybody entirely unable of keeping a steady rhythm needs not to fret either, as the game is rather forgiving.
If I had to criticize anything, it would be the fact that it's entirely possible to miss collectibles on your first trip through a stage. Take the wrong turn, and you can't go back. Sure, that's a minor complaint, but for a completionist like myself, it can be a bit jarring as you need to replay a stage at least once to grab all trinkets and possibly once more to finish a stage in as little time as possible for the "beat the game in under x hours" achievement.
Also, the controls feel wonky at times, but you get used to it, and in no time you'll swiftly sway though the ocean.
Still, it's an overall wonderful and quite unique experience that's well worth trying out not only for its great style.