I'm not gonna be too harsh on this given it's somewhat of a memorial piece (plus the song was pretty good), but I do want to point out three major flaws I've noticed.
- Most apparent, only about a quarter of the screen is shown to the player, at least on the itch.io page. The actual game html *does* show the full game (and others reading this can find the version as of this writing here, assuming it's not deleted later.). There do exist options on the itch.io page itself to make the game fullscreen in two different ways: One by opening an entirely seperate page (which I'd recommend for your case), or one where the fullscreen is an option on the existing window (which I used for my own game, but you have to edit code in your game to pull that off). There's also a way to adjust the browser window itself on said page.
- You can easily dodge all attacks by either going above the cat or going offscreen (due to lack of wall collision).
- Assuming you instead follow what seem to be the "rules" and stay below the cat/in the walls, the final attack is nearly impossible to dodge when in quarter-screen mode due to not being able to see anything past said quarter. In fullscreen it's *doable* but the way it comes out is deceptive such that you might get trapped before you can realize and get out of the way. Mind you I'm mostly new to Touhou and haven't played many bullethells unless you count Undertale/Deltarune, so take it with a grain of salt.