All instructions are in the first sprite. Idea is that you don't need to draw things frame-by-frame. All you draw is the body parts of your characters, and then use text code and it will animate.
I was able to use this extension to make an 11 MINUTE LONG FULL EPISODE of gumball: The Graduation. Note: That episode is fan-made and copyright of ideas of characters belong to the creator, Ben Bocqulet. But boy, making that episode was not only fun, but somewhat easy.