Set Difficulty(0-100) and Timer(Up to 5 Minutes, then back away from the camera and start waving your arms to rub out the smudges on the screen. When the timer runs out, your score is in the top left. Recommended Difficulty is 35, with Timer at 60.
I made this project from a book I found in a store a few years ago. The book was called Coding Projects in Scratch, A Step By Step Visual Guide To Coding Your Own Animations, Games, Simulations, and More!