Stardust Speedway (Sonic the Hedgehog CD)

Stardust Speedway is the sixth round from the game Sonic CD. It follows Wacky Workbench and precedes Metallic Madness. It is most known as the place where Sonic raced and defeated Metal Sonic.

It is one of the fastest rounds in Sonic's history. Stardust Speedway is a highway adorned with musical instruments above an enormous city, its skyline glimmering with many lights like its namesake. In the past, the land is old and ancient, resembling a Roman city, with vines adorning the highway as there is little to no technology to speak of. It also has a gothic-styled building in the zone's center. In the bad future, Stardust Speedway has become a corrupted, polluted dystopian city underneath a large electrical storm with a completed statue of Dr. Robotnik in the zone's center, with the skyline being dim and dull. The good future looks like a giant futuristic amusement park, with bright pink and green colors dominating the landscape, also showing a vast bay, with a beautiful cathedral in the center of Zone 2.

Near the ending of the level, Sonic is pitted against Metal Sonic in a complex race, and should Sonic win, he will rescue the imprisoned Amy Rose.

Sonic Generations
Stardust Speedway appears in Sonic Generations as the setting of the rival battle between Classic Sonic and Classic Metal Sonic. As opposed to the original race/battle, Dr. Robotnik is absent and instead the path Sonic is on is crumbling behind him, forcing Sonic to move ahead. The battle is set in the bad future of Stardust Speedway.

Sonic the Hedgehog 4: Episode Metal
The level is set to return in Sonic the Hedgehog 4: Episode Metal. It is known that there will be a cutscene showing Metal Sonic's revival here, however it is unknown if the level itself will be playable. The level is exactly the same as it appears in Sonic Generations.

Trivia

 * There are some paths in this stage which go up and down, much like Chemical Plant Zone. It is possible that this stage is influenced by Chemical Plant Zone.