Great game! The sfx/vfx give it a great game feel and there's definitely a ton of juice especially for a game jam timeline.
I found myself kind of auto-piloting after the first few seconds and it was satisfying to see all the input - having coins collect while standing still was a nice way to make it feel like you're always doing something especially with the timer running down.
I didn't feel any sense of urgency in terms of getting hit which I liked because I could just focus on clearing out the screen as much as possible. Once the boss came I finally felt like I had to dodge.
Overall the game is easy to pick up and replay - the leaderboard is a good touch too. Do you have a favorite Touhou game?