This is version 1.0. You can use the sliders to change angle and speed, but you can also use keys 1-9, some of my favorite patterns. You can press the down arrow to get rid of the angle and speed sliders, and the up key to make it appear. Click the space bar and the balls will be deleted. Click A for a surprise.
I will have to give credit to a book I read, Coding Projects in Scratch, by Jon Woodcock. I have edited and made it my own, but the code is similar. I just added some things, like extra keys to use.