Search for "Sonic XG Android" on Game Jolt to find the most recent fan port.
Sonic XG (which stands for "X-treme Graphics," a nod to the canceled Sega Saturn title Sonic X-treme ) was originally developed by a creator known as Nitemite. Built on the "Sonic Worlds" engine (a Game Maker creation), it was celebrated for its incredibly smooth physics, a stark contrast to the clunky mechanics of official titles released in the mid-2000s. Sonic Xg Android Game Jolt-