Royal Guard are stage 4 sized kb9. The tail and body plates are much much thicker and there's more of them covering most of the body. Their stinger is longer,and their teeth and claws are much sharper. They are highly aggressive.

Kings are stage 5 kb9s. There's only one per hive and breed with the Queen every 3 months. The King guards the Queen and royal pups. Neutral, but highly aggressive if it thinks or feels the hive is fretted or in danger.

Queen are also stage 5 Kb9s. They give birth to hundreds or thousands of pups every 3 months but every spring and fall or 6 months give birth to 4 to 80 royal pups. The Queen can't make honey, since the combs they're mixed in are too small for her, but can use the bigger combs for royal jelly mixing. Neutral, but highly aggressive if it thinks or feels the hive is fretted or in danger.

All classes can have horns and create honey that is stored in their tail and hexes (example in drawings). The number of tail plates can range from 3 to 6.

Art by Riotaur on Instagram.