Thank you, the music was made by my friend ohcurtains, please check out his submission “You’re Toast”, it’s a really cool top down shooter where you are a toaster.
For embedding the game into the page, when submiting, I selected the option for a browser playable game and uploaded a .zip file with the index.html together with the other files necessary for that page to work and the rest is itch.io magic, the engine I used let’s me export my game to HTML5, that’s how I got it to be browser playable, the engine exports it using web assembly and java script.