Click on a paint you like and click-paint the picture. You can change the color if you find it not appropriate, just choose another one and paint again. It sounds like trying on different clothes, an entertaining task to do.
Who said a zebra is black & white and crocodile is green? Here you are to decide what color suits this or that animal best. Be a designer for a while! Use your imagination and a rich palette of paints coloring the pictures. Swebie is an inexhaustible source of funny kids games and Lovely Pets Coloring game is another colorful fun to play. There is a rich choice of colors and shades, so the pictures turn bright and colorful. You can also use this game for learning colors with kids.