| This minifigure has only appeared in video game(s)|
Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
Hyudoros, also simply known as Ghosts, are enemies in the Sonic the Hedgehog series. They are a breed of ghosts that lurk in the Sandopolis Zone and other haunted areas.
Hyudoros are ghosts with a horrific appearance, that reside in dark places. In Sonic & Knuckles, they are presumably ghosts of starving animal friends that were left inside a single Capsule. As they start to appear, they are shown to be small ghosts. But as the lights start to turn off, they grow two horns on their head and have black void eyes.