As you see, I didn't copied Drawing Game, I just added a new (instable) feature. I added the undo button What it can do: If you draw something weird in a beatiful drawing but don't wanna erase the entire (or take the beatiful part of the) drawing you can just use the undo button. Limitations: Do an undo button in scratch isn't easy, so I try so hard and got so far. -It can only be used one time (idk why) -It will not do the entire undouing correctly -Its weird Memory Data Register is a parameter that defines how precise is the pen position collection. 0.1 is recommended, larger numbers maybe get the undo button useless or lower numbers could lag the game or just replay your drawing but in a uglier way Drawing slowly is recommended to get the most detail possible of the drawing