SegaSonic the Hedgehog
This level is a key towards Eggman's Tower, but the player must pass more levels to actually get there.
At the beginning of the stage, the player is pursued down a long straight path by what appears to be a large metal gear-like cylinder. The direction changes, and the chase resumes, except this path includes additional death traps such as electrical obstacles and spike traps on hinges that slam down on the floor at regular intervals. Once more, the direction changes, but this time, the path has crates that release Rings once broken open.
At the end of the path, one of the cylinders will crash into a pool of oil, causing a flaming torch to ignite the oil, forcing the player to climb up a wall that's dotted with proximity bombs. After the player reaches the top, there is a short path that leads to the end of the stage.
- In the Revision A prototype of the game, this level appears as the second playable level and is known as the "Reap Zone". It also featured pop-up barriers with Eggman's image on them, and ended with an elevator sequence to the next level, Landslide Limbo.