| This article's name is conjectural.|
Although this article is based on official information, the actual name of the article's subject is pure conjecture.
The Cryptic Castle Monster is a giant, skeleton-like creature with blue flames surrounding its face.
The Cryptic Castle Monster appears at the end of the normal missions path in Cryptic Castle in Shadow the Hedgehog. It is immune to damage and cannot be killed. It chases Shadow down a set of three grind rails. In order to escape from it, Shadow must perform 180s or hit boost rings.