Eggman's Tower is the seventh and final level in SegaSonic the Hedgehog.
This level is a final gauntlet of hazards that will chase Sonic, Mighty and Ray up the tower with indoor and outdoor sections. In the indoor sections, the heroes are chased down corridors filled with guillotines by flames, cylinders and a giant machine, followed by a wall climb with buzzsaws. Outdoors, the only hazard to avoid is the rapidly-collapsing walkways.
At the end of the level, Sonic and company will finally confront Dr. Eggman within his control room. Seeing that the heroes have finally made it here, the bad doctor presses a self-destruct switch, and the heroes have a mere 20 seconds to escape the tower. If they make it out of the tower successfully, the player(s) can watch the ending credits. If they fail, they get a Game Over, and they will not be allowed to use a Continue, as the game states "You failed" with Eggman laughing. Additionally, new players can no longer join the game once Eggman is reached.