The Mind-Destruction Coil (マインド破壊コイル?) is a British brainwashing device created by Maindo Hakai KoiruShochiku that first appeared in the 2008 Guilala film, The Monster X Strikes Back: Attack the G8 Summit.
After another failed attempt at eradicating Guilala, the president of Great Britain carried out his own plan called "Operation Brain Wash". This consisted of brainwashing Guilala with the Mind-Destruction Coil. Unfortunately, the device destroyed Guilala's psyche causing him to become even angrier than before.