Sonic 3 Complete Customizer ((free)) -

Sonic 3 Complete arrived as a labor of fan devotion: a meticulous, unofficial restoration and unification of Sonic the Hedgehog 3, Sonic & Knuckles, and their scattered components — 1990s code, lost music stems, cartridge quirks, and a cult of players who treat byte-level fidelity as a form of worship. The "Complete" project already reframed how we think of preservation: it’s not merely about making old software run on new hardware, but about reconciling fragmented history into a single playable truth. The Customizer takes that impulse a step further. It is less an emulator tweak and more an act of creative stewardship — a tool that invites players to be curators, composers, and experimentalists within the architecture of a canonical artifact.