Nidoking is an intimidating Pokemon and the perfect addition to a coloring page! You could color it a dark blue all over, emphasizing the small spots by coloring them black. Its horns could be shaded with yellows and oranges to make them pop, and its eyes could be colored with a deep red. Its tongue and claws should be a bright red, and its tail can be shaded with lighter blue hues. With this menacing creature in your coloring page, it's sure to be the focus of attention!