Tidal Tempest

Tidal Tempest is the third round from the game Sonic CD. It follows Collision Chaos and precedes Quartz Quadrant.

It is an underwater region that widely resembles the Labyrinth Zone. It rests at the base of many volcanoes and rocky structures only seen at the very beginning of the present zones. Pipes carry water from one area to another, stone pillars seem to be present, and the water elevation is normal here, giving the zone a greenish tint when entered. In the past, it is an underground cavern that has been untouched by mankind or machinery, but strangely features pipes similar to those in the present timeline. Stone pillars take a different shape here and the water level is fairly low, giving the caverns a darkened tint if stepped into. The bad future shows an over-industrialized, nonfunctional, and corroded water plant. Broken down machines and ruined stone pillars are featured here. The water here is polluted and is unsafe, also giving off a reddish tint when it has been entered, possibly hinting that it may be poisonous. In the good future is a fully operational, turquoise aquarium that harbors much plant life preserved in glass cases and aquatic life. The water level here will feature a pleasing light turquoise tint when entered. The water level is at it's highest point in both futures.

The boss of the zone is Dr. Robotnik, piloting his Bubble Shield Blaster.