Hello! This is a pen tutorial for making your own complex games and animations. To use this tutorial, you should probably read up on what pen is, a basic way of using it, and what functions are. You will need all of this to know what is going on! :) Also, use full-screen to have the optimum tutorial effect!
All by me - this was made for the Scratch Skills Competition, at https://scratch.mit.edu/studios/4038339/ . Oh, and the on-screen scripts are draggable. When using this tutorial, make sure that all custom blocks used have 'Run without screen refresh' enabled!