Press the green flag and your little multicolored cat will follow your mouse arrow around the stage. Press the "x" key to erase your work. (Note: May need to press stage with mouse before being able to erase.) Also, ADVERTISE!!! I don't care what you put in here, you can advertise as you wish.
Coding Projects in Scratch is a great book that teaches some Scratch projects. This is one. UPDATES SECTION!!! Version 1.1: Project released. Version 1.2: Up Arrow increases size, Down Arrow de- creases. Version 1.3: Left and Right arrows increase and decrease "whirl" effect. Version 1.4: 'W' and 'S' keys increase and decrease "fisheye" effect. Finished Version (Version 1.5): 'A' and 'D' keys increase and decrease "pixelate" effect.