Here are answers to some common questions you might have.
The Sega Genesis library on Switch Online includes Sonic 3 & Knuckles . sonic 3 and knuckles steam rom download best free
Find the Sonic_Knuckles_wSonic3.bin file in your Steam installation folder (typically .../Steam/steamapps/common/SEGA Classics/uncompressed ROMs ). Here are answers to some common questions you might have