Found a bug for the browser version on firefox, for whatever reason whenever I have the game fullscreened every so often the screen seems to split apart into four cubes, showing my desktop and this lasts for like 2 seconds before going away, it happens pretty much every 15-20 seconds. I've not had this issue with other stuff, but I do really like what you got here, definitely downloading this and plan to re-visit often (not to make art, just critique it and enjoy what everyone has made)