Sonic-knuckles-wsonic3.bin File - Better
Sonic_Knuckles_wSonic3.bin file is the combined ROM image for Sonic 3 & Knuckles
On low-end emulation devices (like the Anbernic RG35XX or Miyoo Mini), handling one 4MB .bin file is significantly faster and more stable than emulating the lock-on logic of two separate ROMs. sonic-knuckles-wsonic3.bin file
If you have the individual ROMs for Sonic 3 and Sonic & Knuckles , you can manually merge them using a Command Prompt (Windows) or Terminal (Mac/Linux). Place both ROMs in the same folder. Rename them to s3.bin and sk.bin . Sonic_Knuckles_wSonic3