The world was completely unexpected based on the thumbnail, which made it super cool!
That said, since it's a bullet-hell style dodging game, I personally think it’d be even more fun if we could attack—it'd feel more responsive that way. I did eventually figure out that being in the green zone triggers an attack, though!
Also, the audio and the whole world concept—like walking on top of curry rice—are awesome. Sorry I couldn't make it all the way to the boss!