Little Planet (Classic Sonic's world)

The Little Planet (リトルプラネット), also known as the Miracle Planet (奇跡の星), is a location that appears in the Sonic the Hedgehog series. It is another version of Little Planet from an alternate dimension set in the recent past.

Past
Little Planet's early history was most likely largely the same as its mainstream counterpart's up until at least some time after the West Side Island incident.

Sonic Mania
In Sonic Mania, Little Planet reappeared over Never Lake in its mechanized form due to the interference of the Phantom Ruby, where it stayed in view of Angel Island. Shortly after its arrival, Sonic, Tails and Knuckles got send to the Past of Stardust Speedway Zone when Dr. Eggman used the Phantom Ruby at the end of Press Garden Zone to displace the heroes. Working their way back to the Present, the trio were challenged to a fight by Metal Sonic, whom they managed to defeat before getting off Little Planet. Sonic and co. could later see Little Planet in the sky while making their way through Lava Reef Zone.

Tracking Eggman back to Little Planet, Sonic and co. pursued him through Metallic Madness Zone before cornering Eggman in the Titanic Monarch, another one of Eggman's bases set up on Little Planet. After the trio of heroes defeated Eggman, the Titanic Monarch began to explode. During the confusion, Sonic and the Phantom Ruby got sucked into an inter-dimensional wormhole while Tails and Knuckles escaped Little Planet. Landing on the outskirts of Never Lake, Tails and Knuckles looked towards Little Planet as the chain linking Little Planet to the earth shattered. Little Planet would then disappear in a shower of sparkles while Sonic barely escaped the collapsing Egg Reverie Zone.

Locations

 * Stardust Speedway Zone, an area containing a complex network of highways.
 * Past, a jungle filled with large vines and what appears to be some ancient buildings (along with a cathedral sealed with a dome).
 * Present, a city with golden highways, a glimmering skyline, and a giant Eggman statue under construction.
 * Metallic Madness Zone, Eggman's personal base, filled with mechanical contraptions.
 * Present, a typical Eggman Zone. Fully metallic and with tons of traps and robots.
 * Titanic Monarch Zone, another one of Dr. Eggman's bases. A city with a huge cathedral at the center.