Evolution Accelerator

The Evolution Accelerator is a machine designed by Dr. Polidorius for mutating subjects into humanoids with the powers of aquatic lifeforms. It is seen in the episode Rebel without a Fin, and requires a substantial amount of energy to operate. Polidorius using the machine to create Ray (1987 TV series) and to mutate April O'Neil (on the second attempt after a brief power malfunction) into a fishwoman. The machine is also capable of reversing its mutations, as Polidorius is compelled by the Turtles to revert April to normal.