Cog Changer

Cog Changer appeared in 1996 TV series finale called Power Rangers Zeo. Cog Changer was a robot monster used by the Machine Empire to access Zeo technology. He was capable of replacing the cogs on the Zeo Jet Cycles with evil ones that would cause the Rangers to lose control of the cycles. As such, the Zeo Cycles ended up getting destroyed. He also piloted the Zeo Megazord after knocking it out of the Rangers' control. He later fused with Impursonator.