FWIW, I am doing something similar right now and I can tell you that making thousands of overlapping divs sucks for performance already on desktop, and is even

FWIW, I am doing something similar right now and I can tell you that making thousands of overlapping divs sucks for performance already on desktop, and is even worse on mobile. I can see why the canvas thing is in use. Most JS game engines should support firing native events of some sort, like you should theoretically have the ability to call window.confetti() from canvas-rendering game code in response to a victory screen or similar.