Sonic racing against Metal Sonic in the good future of Stardust Speedway, from the 2011 re-release of Sonic the Hedgehog CD. However, the doctor's influence over time turned the city into a wasteland as a result of the constant thunderstorms caused by the pollution on the planet. With this, he managed to conquer the future of the planet and write history to his own image.
He also put some Metal Sonic Projectors to terrorize the local Animals. He installed robot teleporters in the past and infested the city with Badniks. Robotnik invaded Little Planet and its regions, which included Stardust Speedway. Main article: Stardust Speedway (Sonic the Hedgehog CD) Over time however, it was turned into a modern and colorful city. Stardust Speedway once used to be a Greek/Roman-styled city near a lake. The statue has also been replaced by a lavender cathedral/castle. There are also many support gilders on them. The highways appear in a lavender color with plaques of hearts on them.
After Sonic the Hedgehog re-wrote history, Stardust Speedway was no longer a city, but an amusement park, as far as the eye can see, in a bay full of lights, colors and attractions, where fun and leisure dominated the place. A gray amusement park also appeared in some part of the city, but it does not seem to be working. The highways appeared jade green due to age, and their instruments showed some signs of damage. Eggman re-wrote the future to his own image, the city was the same as in the present, but it was polluted and ruined with some red storms constantly destroying the place. There was also a dark-colored palace in the same place where the Eggman-styled statue is currently located. In addition, what appeared to be a lake was seen underneath them. The highways were green and filled with vines and other types of vegetation. In the past, Stardust Speedway used to be a Greek/Roman-styled city. Eggman-themed statue can be seen being under construction. Also, what appears to be a factory under construction is seen below those highways.
Numerous golden highways adorned with instruments, signs, gimmicks, and Time Warp signs are also found in the city, while some buildings and lights are seen in the background. It is notable for its light colors during night. Stardust Speedway is a city on Little Planet, near Palmtree Panic and the Wacky Workbench.