This mod contains three levels from Shadow The Hedgehog (2005) ported to Sonic Frontiers. Westopolis, Lethal Highway, and Circus Park
It is recommend to use physics mods for this. (Tracker's Physics for example.)
Known issues: The grind rail visual cuts off near the end of Circus Park.
The mod feels like it was rushed a lot just to get to SHC. Please, if you really did that, don't do it again and take your time.
The level design feels empty, but I did enjoy the skating in Lethal Highway. Circus Park was very underwhelming though.
Visually, the levels don't look nice. They use the default cyber night lightning, which doesn't fit the stages at all. They feel empty and lifeless, due to the lack of a proper skybox or atmosphere.