While concealed, Kabuto leaves exposed only its hard shell, which protects it from predators, while the small black eyes on its back allow it to continue monitoring its surroundings. If it is flipped upside down, it becomes helpless and defenseless as it is unable to flip over on its own. It may be based on a Horseshoe crab.
Kabuto's design was inspired by the real-world Limulidae (also known the Horseshoe Crab) which are considered living fossils since they have undergone little to no changes in appearance over the past millions of years. However, unlike Kabuto, Limulidae are not extinct.