Gemini Spark (ジェミニ・スパーク Jemini Supāku) is an antagonist in the first Mega Man Star Force. He is the result of the EM Wave Change between the FM-ian Gemini and the human Pat Sprigs and his other split personality, Rey. He is an extraterrestrial being from the Planet FM and along with several other FM-ian allies, was sent to Earth by the order of the FM king to retrieve the Andromeda Key.