A: Yes. wsonic3.bin is just a naming convention (w = with). You can rename it freely – the content is the same.
When the game saves progress, KCI writes a stub into the save file indicating “Knuckles active.” If the game is later loaded on an unmodded ROM, the stub is ignored—preventing crashes. sonic knuckles wsonic3bin file install
The real magic of Sonic & Knuckles is combining it with Sonic the Hedgehog 3 to create one massive game. A: Yes
The file Sonic_Knuckles_wSonic3.bin is the combined ROM file required to run Sonic 3 A.I.R. (Angel Island Revisited) sonic knuckles wsonic3bin file install