An industrial powerhouse of a level, the Scrap Brain Zone is the final (save for the one-stage "Final Zone") location for Sonic to traverse. Ruptured gas pipes send bursts of fire from the ground or ceiling and massive buzzsaws come at Sonic from all directions. This level features platforms that can vanish into thin air as well as diagonal conveyor belts that will drop Sonic off them if he does not leap off at the end so timing is essential. The second act is set indoors and contains magnetic orbs which can be used as catapults to out-of-reach places and also has teleport machines. The third act takes a bizarre twist as Sonic is dropped into what appears to be a Labyrinth Zone-style stage, which he must climb out of to face Robotnik for the final showdown.