Mindbomb

After the Decepticons' attack on humanity, the humans of Earth knew they had to be prepared if the Transformers returned. When Alpha Trion arrived on Earth, Earth Defense Command saw the perfect opportunity. From his mind, they developed the mindbomb, or mind bomb, a device that targets and causes immense pain to Cybertronian circuitry.

It is ingeniously painful.Galvatron on the mindbomb, "Full Fathom Five"