Sure, I can help you create a simple coloring game using JavaScript. Here's an example HTML file that you can use:
Fox Coloring Game
In this example, the game provides a 3x3 canvas represented by 9 squares using pictograms. When you click on a square, it changes its color randomly from a set of predefined colors.
You can try running this HTML file on a smartphone browser to play the game. Each time you click on a square, it will change its color. Have fun!