It's looking clean, though I'm not sure how to interpret the things in there (except for the trademark green-slash ghost).

I really appreciated the sound of slices and other feedback sounds and the minimalistic aesthetic is neat.
Though I didn't enjoy the gameplay much. To me the boss fight looked like a quickly made-up cluster of bullet patterns, and the level (with enemies) isn't interesting - it's just a straight line and the enemies are all in a line.

I featured this game in my Touhou Game Jam showcase video:
https://youtu.be/PoWrHcmGjbU?t=5285

Myon stars in a small SHMUP.

This is a good concept but it could be better, chasing enemies is good enough and erasing their bullets is good too, but there's the issue where you can just walk to the exit without attacking anyone xD, also, fighting squares is kinda boring.
Final boss is quite simple, but it's obvious you focused on visuals, so it was a nice experience as well.

PD: I couldn't run this well enough on chrome, its very laggy, I had to run it on firefox so it could run well.

Really cool concept! 

Curious to see how this can be later iterated on!

The visuals are really pleasant. I wasn't sure if there was a way to properly deal with the overwhelming spam of bullets aimed directly at me.

The dream-like atmosphere is very cool, and the action feels nice and satisfying, if I had a suggestion it would be to jump higher and dash further

A cool concept, and cool how my first thought upon seeing a bunch of basic shapes was "surreal and minimalist" due to how they were accented. Very good proof of concept!