Yo! Bones was part of a special Halloween release by Hummingbird. There were three models in the Halloween Series... Yo! Bones, Yo! Cats, and Yo! Jack. The Halloween Series were a smaller release, and quite difficult to find. Most of the Yo! Bones model were black with a silver foil logo, but there are variations.
This one is an example of a bright Neon orange Yo! Bones with a black logo. A more unusual color than the standard black.
