This is a Horizontal SHUMP Touhou game that instead of destroying your enemies with your bullets, you are the BULLET (you can still get destroyed by an enemy bullet though.)

MODES: The game itself has two (2) modes, namely Arcade and Zen. Zen is skill-locked by default to be unlocked when you've reached Lunatic on the Arcade mode. I haven't reached that myself, but if I would based that to regular Touhou, it would be a dodge galore for sure. 

GAMEPLAY:

The gameplay is an one-button/finger affair where you spin Marisa to where you wanted her to be (indicated by an arrow above her dazed up head). If you prolong the hold, the greater the spin, the greater the force is. When released, you blast her to the direction you want her to bounce around with which either you want to destroy enemies, or avoid bullets. Thankfully, you can stop her from going to far with a tap and hold (just to make her spin again.)  Addition to that, the Graze mechanic is also here, so feel free to take risks to grab more points.

OTHER DETAILS: 

The game has a great pixel art in game, and a cute art you can see on the game over screen. Meanwhile, the music is great overall, from the fast-paced BGM when in game to the somewhat solemn piano hits when getting a KO from a bullet. 

OVERALL:

This is a great fan-game with a quirky mechanic you don't usually see on a regular Touhou game. I can wholeheartedly recommend to those who are fans of Touhou as well as people who wanted a quick one button arcade action.