Sonic 3, Sonic & Knuckles, and Sonic 3 & Knuckles v0.6.2

Updates all three cartridge targets with the approved shared rendering/audio optimizations. Preserves the accepted original Blue Spheres composition and existing game features.

Windows x64 release pinned to the merged shared engine ae1c742adef48b6ef6ed5b4c1dd4b64514086edd and qualified core 53fc7b417d5c194a5ebdf8d623c1c4501226eb60. Representative full state, image, audio and replay checks passed; owner visual/play acceptance is recorded. Final extracted packages also pass muted startup, app-local dependency and payload-integrity checks.

Bring your own game media; Sonic CD requires your own BIOS and disc. No original game media or personal saves/settings are distributed. Earlier Linux assets remain available on previous releases.

Final package runtime timing remains unqualified; no numerical whole-game speedup is claimed.