Exodus

Exodus is a secret, exceptionally powerful counter-attack technique. It is used with the Field Knuckle. When significant amounts of energy are absorbed by the gloves, it can be reflected back as a powerful blast of energy, instantly killing anything it hits. Joey Apronika uses it, with the encouragement of Knight, near the end of Metroid EX to kill Bishop. Knight later explains that it was a tactic Joey's father, Rand Apronika, commonly used against him during sparring matches when they were rivals in their youth. Despite Knight's superior strength, he was no match for Exodus.