This is a small cloud engine. You see that ghost following Scratch Cat as he moves toward your cursor? That is a simulated look of how your avatar would look to another player over Cloud! If you set the top left slider to zero, you can see the other person's ghost! It has a few features missing for a game, but it should be easily expandable. On another note, that ghost is quite naively sent - Buffering or sending input as well would make it a million times better.