This exploratory project introduces hydra, a slinky-inspired tendon-driven continuum robot designed to study a new form of mobile, compliant locomotion. Its lightweight modular units bend through coordinated antagonistic tendon actuation to produce slinky-like motion while maintaining high torque-to-weight ratio. All motors, electronics, and batteries are integrated into the feet, enabling fully untethered wireless control. While tendon-driven continuum robots are common in manipulation research, their use for locomotion is largely unexplored. Hydra demonstrates a novel approach to tendon-actuated movement and provides a versatile hardware platform for investigating distributed actuation, bio-inspired mobility, and locomotion in confined or unstructured environments. Visit my dedicated project website here for more details.