|This location exists primarily or exclusively within the Post-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
- For the version of this location before the Super Genesis Wave, see Final Zone (Pre-Super Genesis Wave)
Instead of the traps and obstacles like the doctor's other regions, the Final Zone had engine pistons that Dr. Eggman used for crushing victims.
Sonic the Hedgehog visited this area on his very first adventure to stop Dr. Eggman and his assistant, Snively, when the two mad doctors came to South Island to strip-mine and process the island as part of their plan for world domination. After defeating them here, the two doctors fled to Westside Island where Sonic quickly gave chase.