Hi there!
The windows version is not playable, but I tried out the webGL version, cool game! I like the music and the character design, but it was unclear to me how the left shift button works, so I died quite often and made it to level 4 before it became too difficult. The amount of bullets is cool to look at, but a bit tough on performance, which hinders the experience just a tiny bit. Overall good effort!
Edit: before I forget, I wanted to compliment the 'getting hit' effect and its animation, looks super clean!