HOOOOOOOOOOOIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII!
go to turbo warp packeger and turn it in to a your scratch game into html file ( download the file) , converert the sb3 file in turbowarp packager into a html file, go to itch io then upload the file with a swirl then click this file will be played on page or what ever it is, you're welcome :) and i haope it works cause im prettey sure it does, btw this comment is very long to, and you can upload a sprite to be a coustom mouse in turbowarp paceger, ( i hope you read all of this btw cause i keep making this commenet W A Y to long and also i like salmon and i like to misssepell (see what i did there?))