Press the right arrow key to start Scratch Cat spinning clockwise. Or press the left arrow key to start Scratch Cat spinning counter-clockwise. The more times you click the button, the faster he'll spin. You can also switch directions part way through by pressing the opposite button. Have fun!
Thanks to @awesome_vic for helping me with this! Check out his project, Pong Classic! It's amazing! It should totally be featured! https://scratch.mit.edu/projects/319238527/