These 15 free Transformers coloring pages feature Optimus Prime, Bumblebee, Megatron and robots that turn into cars, trucks and planes. Detailed machines for older kids. Just print, grab your crayons and have fun! More Movies Coloring PagesSuper Mario6 coloring pagesHow to Train Your Dragon30 coloring pagesElio25 coloring pagesMoana15 coloring pagesElemental16 coloring pagesStranger Things32 coloring pages