The file sonicknuckleswsonic3bin is a digital simulation of that physical combination. It is a single file containing the data from both cartridges merged together, allowing the player to experience the complete saga intended by the developers.
Just be aware: the archivists will silently judge you for the missing "3". The correct file is sonic3knuckleswsonic3.bin . But for gameplay? They work exactly the same. sonicknuckleswsonic3bin file
Because it is a standard binary (ROM) file, it can also be played directly in Sega Genesis emulators like Kega Fusion Combining Files: If you only have separate files for Sonic & Knuckles The file sonicknuckleswsonic3bin is a digital simulation of
: Most legal copies of this file are obtained through the SEGA Mega Drive and Genesis Classics collection on Steam. The correct file is sonic3knuckleswsonic3
If you own the collection, you can find the file in your Steam directory: .../Steam/steamapps/common/Sega Classics/uncompressed ROMs/ .