|First appearance||Once More the Nightmare Factory|
These cryptids can generate sound waves that can, using resonance attuned to many types of minerals, generate destabilizing seismic activity causing massive ground collapse. A swarm of them can cause a small localized earthquake. They are said to be the size of a human fist, and live in Japan. The branch-like appendage sprouting from their thorax is what generates the sound waves. This special ability was influenced by nature to scare rival species from their dens. That way the Jinshin-Mushi will always have a habitat.
- Appeared in Cartoon Network Action Pack #36: Escape from Weird World.