what this project is about is making shapes, so first you want to run the project, then if mouse down it does pen down, if mouse not down pen up, if it is down again it will make a line in between those lines. There is also a glitch where you hold down the mouse a you basically drag the sprite making it pen down.
Wanted to make something like this before, but I didn't know how so after a while I went on this and tried to make this and it worked, took a few tries, but as you can see I did it. Thanks to griffpatch for making this amazing game.