Mephisto is the devil puppet that was made and named after The Most Famous Devil of Satan, Mephistopheles. He takes away the enemy's energy powers with Energy conversion and see in the dark with Night Vision. He has the soul of Reiko Y. Megumi. His only weapons is a scythe and a crystal ball. He got killed in a burst of flames by Caira Merchant.
- His head looks exactly like Blade's head, but Blade does not have the devil horns.
- Blade must be designed after Mephisto
- The Fullmoon toy of him came with a glass sphere but in the movie he never had one.