Godzilla Signal

The Godzilla Signal is a device used in the Hanna-Barbera cartoon Godzilla.

Godzilla
Often on the belt of Captain Carl Majors, it is often used by him whenever the crew is in trouble that requires Godzilla's help. In the events it cannot be used, Godzooky's cry is often substituted.

In The Cyborg Whale, Brock was able to replicate it using the Cyborg Whale to call for Godzilla.

In Pacific Peril, it's high-frequency tone is used to shatter the growing crystals that were trapping Capt. Majors, Pete and Godzooky.