Wherever you hover your mouse, the pen will follow! DRAW YOUR IMAGINATION! To make rainbow colour, press and hold, SPACE BAR. To change the colour, press SPACE BAR just once. To make the pen bigger, click the UP ARROW. To make the pen smaller, press the DOWN ARROW. To change the backdrop, click the letter B. If you want to draw somewhere else without the pen trailing, press 8 once. When you want the pen back, click 9. ENJOY!!