You can modify all sorts of things, but the course starts with basics (creating items, creating blocks, creating a creature, etc.). We really liked the course but it is a starting point. So my daughter would always want to do more than they showed, but then we worked together to figure it out. It would be possible to do the course and learn very little about coding, but a motivated child can learn a huge amount if they make the effort to understand what is presented (not just to copy and paste) and then to go beyond it.
