Select a image from the eight available options to start coloring. Use the 23 different colors provided to fill in the outlines of the Ninja Turtles and their surroundings. Tap on a color from the palette, then click on the area you wish to color. Alternate between colors as needed to complete your artwork. Save your colored image by tapping the save button. Color all pictures to discover more coloring challenges. Try to color as precisely as possible for a better score.