Welcome to Scratch in Scratch in Scratch! You can make a project within a project by another person that's remixed from that same person's project, recreating the thing he used to code that project! That was confusing, wasn't it? Just do what Scratch Cat tells you to. Obviously, you can't do much, since the more Scratch in Scratches you add, the more limited it becomes. So you can only make one project with this, and it's a drawing project.
