X-Naut PhD

X-Naut PhDs are expert X-Naut scientists, as the name implies ("PhD" stands for Doctor of Philosophy, which is generally recognized as the highest university degree obtainable). These X-Nauts wear lab coats and blue uniforms. They are usually responsible for building the inventions the other X-Nauts use for their plans, such as the Magnus Von Grapple Robots. They attack by throwing chemicals at Mario and his team or use them to increase their power or health. They also created the species called Yux.