At its core, it's just Rhythm Heaven in an Embodiment of Scarlet Devil skin. There are only fifteen different games counting the one remix, but all of the individual ones have a normal and hard version that change up the soundtrack a bit. Touhou music is great so a rhythm game based around it was bound to be fun, and one that manages to effectively copy Rhythm Heaven's style and design is even better. Unlike the other game made by Focas Lens, this isn't a pain to install, so I definitely recommend checking it out if you like Touhou or just want a little more Rhythm Heaven in your life.