Transformers Coloring Pages Free are free printable coloring pages of Transformers characters. These coloring pages are perfect for kids of all ages, and they are a great way to keep them entertained while they learn about the Transformers universe. There are many different Transformers characters to choose from, including Optimus Prime, Bumblebee, Megatron, and Starscream. You can find Transformers coloring pages online or in many craft stores.