Blood Beast

A Blood Beast is a cheetah-like monster that Knuckles claimed to have originated in Mobian storybooks.

History
Knuckles encountered a pair of Blood Beasts as he ventured into Merlin Prower's dwelling on his quest to find the Sword of Acorns in order to heal the crystallizing King Acorn. The two creatures attacked him but were easily defeated.

It was later revealed that Merlin Prower had summoned the creatures to defend his dwelling as part of his powers as a charlatan.