Mecha Sonic is a recurring antagonist from the Sonic series. He serves as the secondary antagonist in the video game Sonic and Knuckles and he is the second robotic replica of Sonic created by Dr. Eggman, the first being Silver Sonic. Mecha Sonic is more commonly known for his ruthless and cold personality and is absolutely hellbent in collecting all the chaos emeralds, even if it takes massacring millions.

Voice: Mecha Sonic's voice should sound menacing with a deep tone and a robotic filter put into it. It's also worth noting that his voice should sound akin to Cooler from Dragon Ball Z.