Cacophonic Conch

The Cacophonic Conch is an object that appears in Sonic Lost World. It is a very rare type of conch shell that acts as a natural inhibitor to the powers of Zeti.

Description
As implied by its name, the Cacophonic Conch closely resembles a real-life musical instrument conch. It is very long, with long pointy spikes on the outer surface and is colored dark purple. Also, its opening glows red.

When blown into, the Cacophonic Conch glows red and gives off a low-pitched sound, which allows the user to inhibit the powers of nearby Zeti, including their ability to manipulate magnetic fields. However, the effect of the Cacophonic Conch is very painful to Zeti, causing them great pain when hearing its sounds.

History
Prior to the events of Sonic Lost World, Dr. Eggman somehow obtained the Cacophonic Conch. It is seen for the first time when Eggman is disappointed at the Deadly Six for collecting "underwhelming" animals. When Zavok spoke up against the doctor, Eggman used the Cacophonic Conch to flinch pain on the Deadly Six and bring them back in line. When later meeting the Deadly Six of Desert Ruins. Eggman expressed his disappointment for their failures despite his effort to help them and blew into the Cacophonic Conch, inflicting the Deadly Six with pain again.

However, Sonic the Hedgehog and Miles "Tails" Prower arrived on the scene, with the hedgehog suspecting the shell as trouble. Ignoring Tails' warnings, Sonic knocked the conch out of the doctor's hands into the horizon. This was a fatal mistake, however, as the Deadly Six rebelled and took control of several Badniks before assaulting everyone present.

Archie Comics
The Cacophonic Conch made an appearance in both Sonic Halloween Comic Fest 2013 and Sonic Super Special Magazine #9 published by Archie Comics, which both served as comic book prequels to Sonic Lost World.

In the comics, when Eggman arrived on the Lost Hex and tried to take control of Zavok by beating him into submission with his mechs, but failed when Zavok took control of the doctor's mechs, Eggman used the Cacophonic Conch. The resulting sounds from the conch force Zavok in subjugation, which ended with Zavok relenting and reluctantly agreeing to serve Eggman. Eggman then gloated over his victory and his discovery of the Cacophonic Conch, before ordering Zavok to gather the Deadly Six to collect animals for him.